{"pageNumber":"807","pageRowStart":"20150","pageSize":"25","recordCount":68927,"records":[{"id":70036248,"text":"70036248 - 2010 - Coral Ba/Ca records of sediment input to the fringing reef of the southshore of Moloka'i, Hawai'i over the last several decades","interactions":[],"lastModifiedDate":"2013-04-22T12:01:00","indexId":"70036248","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2676,"text":"Marine Pollution Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Coral Ba/Ca records of sediment input to the fringing reef of the southshore of Moloka'i, Hawai'i over the last several decades","docAbstract":"The fringing reef of southern Moloka’i is perceived to be in decline because of land-based pollution. In the absence of historical records of sediment pollution, ratios of coral Ba/Ca were used to test the hypothesis that sedimentation has increased over time. Baseline Ba/Ca ratios co-vary with the abundance of red, terrigenous sediment visible in recent imagery. The highest values at One Ali’i are near one of the muddiest parts of the reef. This co-varies with the lowest growth rate of all the sites, perhaps because the upstream Kawela watershed was historically leveed all the way to the nearshore, providing a fast-path for sediment delivery. Sites adjacent to small, steep watersheds have ∼decadal periodicities whereas sites adjacent to mangrove forests have shorter-period fluctuations that correspond to the periodicity of sediment transport in the nearshore, rather than the watershed. All four sites show a statistically significant upward trend in Ba/Ca.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Pollution Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.marpolbul.2010.05.024","issn":"0025326X","usgsCitation":"Prouty, N., Field, M., Stock, J., Jupiter, S., and McCulloch, M., 2010, Coral Ba/Ca records of sediment input to the fringing reef of the southshore of Moloka'i, Hawai'i over the last several decades: Marine Pollution Bulletin, v. 60, no. 10, p. 1822-1835, https://doi.org/10.1016/j.marpolbul.2010.05.024.","productDescription":"14 p.","startPage":"1822","endPage":"1835","costCenters":[{"id":528,"text":"Pacific Science Center","active":false,"usgs":true}],"links":[{"id":246211,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218220,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpolbul.2010.05.024"}],"country":"United States","state":"Hawai'i","city":"Moloka'i","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -157.3108,21.0462 ], [ -157.3108,21.2241 ], [ -156.7097,21.2241 ], [ -156.7097,21.0462 ], [ -157.3108,21.0462 ] ] ] } } ] }","volume":"60","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fc04e4b0c8380cd4e0a3","contributors":{"authors":[{"text":"Prouty, N.G.","contributorId":36766,"corporation":false,"usgs":true,"family":"Prouty","given":"N.G.","email":"","affiliations":[],"preferred":false,"id":455091,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Field, M.E.","contributorId":27052,"corporation":false,"usgs":true,"family":"Field","given":"M.E.","affiliations":[],"preferred":false,"id":455090,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stock, J. D. 0000-0001-8565-3577","orcid":"https://orcid.org/0000-0001-8565-3577","contributorId":79998,"corporation":false,"usgs":true,"family":"Stock","given":"J. D.","affiliations":[],"preferred":false,"id":455093,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jupiter, S.D.","contributorId":94507,"corporation":false,"usgs":true,"family":"Jupiter","given":"S.D.","affiliations":[],"preferred":false,"id":455094,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McCulloch, M.","contributorId":38826,"corporation":false,"usgs":true,"family":"McCulloch","given":"M.","email":"","affiliations":[],"preferred":false,"id":455092,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70036250,"text":"70036250 - 2010 - Avian foods, foraging and habitat conservation in world rice fields","interactions":[],"lastModifiedDate":"2012-03-12T17:22:07","indexId":"70036250","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Avian foods, foraging and habitat conservation in world rice fields","docAbstract":"Worldwide, rice (Oryza sativa) agriculture typically involves seasonal flooding and soil tillage, which provides a variety of microhabitats and potential food for birds. Water management in rice fields creates conditions ranging from saturated mud flats to shallow (<30 cm) water, thereby attracting different guilds of birds. Grain not collected during harvest (i.e. waste rice) is typically the most abundant potential food of birds in rice fields, with estimates of seed mass from North America ranging from 66672 kg/ha. Although initially abundant after harvest, waste rice availability can be temporally limited. Few abundance estimates for other foods, such as vertebrate prey or forage vegetation, exist for rice fields. Outside North America, Europe and Japan, little is known about abundance and importance of any avian food in rice fields. Currently, flooding rice fields after harvest is the best known management practice to attract and benefit birds. Studies from North America indicate specific agricultural practices (e.g. burning stubble) may increase use and improve access to food resources. Evaluating and implementing management practices that are ecologically sustainable, increase food for birds and are agronomically beneficial should be global priorities to integrate rice production and avian conservation. Finally, land area devoted to rice agriculture appears to be stable in the USA, declining in China, and largely unquantified in many regions. Monitoring trends in riceland area may provide information to guide avian conservation planning in rice-agriculture ecosystems.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/063.033.s110","issn":"15244695","usgsCitation":"Stafford, J., Kaminski, R., and Reinecke, K.J., 2010, Avian foods, foraging and habitat conservation in world rice fields: Waterbirds, v. 33, no. SPEC.ISSUE.1, p. 133-150, https://doi.org/10.1675/063.033.s110.","startPage":"133","endPage":"150","numberOfPages":"18","costCenters":[],"links":[{"id":218253,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/063.033.s110"},{"id":246246,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"SPEC.ISSUE.1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ef67e4b0c8380cd4a218","contributors":{"authors":[{"text":"Stafford, J.D.","contributorId":37440,"corporation":false,"usgs":true,"family":"Stafford","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":455102,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kaminski, R.M.","contributorId":53330,"corporation":false,"usgs":true,"family":"Kaminski","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":455103,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reinecke, K. J.","contributorId":54537,"corporation":false,"usgs":true,"family":"Reinecke","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":455104,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70036277,"text":"70036277 - 2010 - Assessment of sewer source contamination of drinking water wells using tracers and human enteric viruses","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036277","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of sewer source contamination of drinking water wells using tracers and human enteric viruses","docAbstract":"This study investigated the source, transport, and occurrence of human enteric viruses in municipal well water, focusing on sanitary sewer sources. A total of 33 wells from 14 communities were sampled once for wastewater tracers and viruses. Wastewater tracers were detected in four of these wells, and five wells were virus- positive by qRT-PCR. These results, along with exclusion of wells with surface water sources, were used to select three wells for additional investigation. Viruses and wastewater tracers were found in the groundwater at all sites. Some wastewater tracers, such as ionic detergents, flame retardants, and cholesterol, were considered unambiguous evidence of wastewater. Sampling at any given time may not show concurrent virus and tracer presence; however, given sufficient sampling over time, a relation between wastewater tracers and virus occurrence was identified. Presence of infectious viruses at the wellhead demonstrates that high-capacity pumping induced sufficiently short travel times for the transport of infectious viruses. Therefore, drinking-water wells are vulnerable to contaminants that travel along fast groundwater flowpaths even if they contribute a small amount of virus-laden water to the well. These results suggest that vulnerability assessments require characterization of \"low yield-fast transport\" in addition to traditional \"high yield-slow transport\", pathways. ?? 2010 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es100698m","issn":"0013936X","usgsCitation":"Hunt, R.J., Borchardt, M., Richards, K., and Spencer, S.K., 2010, Assessment of sewer source contamination of drinking water wells using tracers and human enteric viruses: Environmental Science & Technology, v. 44, no. 20, p. 7956-7963, https://doi.org/10.1021/es100698m.","startPage":"7956","endPage":"7963","numberOfPages":"8","costCenters":[],"links":[{"id":246153,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218168,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es100698m"}],"volume":"44","issue":"20","noUsgsAuthors":false,"publicationDate":"2010-09-07","publicationStatus":"PW","scienceBaseUri":"5059ee54e4b0c8380cd49ce0","contributors":{"authors":[{"text":"Hunt, R. J.","contributorId":40164,"corporation":false,"usgs":true,"family":"Hunt","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":455228,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Borchardt, M. A.","contributorId":62804,"corporation":false,"usgs":true,"family":"Borchardt","given":"M. A.","affiliations":[],"preferred":false,"id":455229,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Richards, K.D.","contributorId":28635,"corporation":false,"usgs":true,"family":"Richards","given":"K.D.","email":"","affiliations":[],"preferred":false,"id":455227,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Spencer, S. K.","contributorId":96118,"corporation":false,"usgs":true,"family":"Spencer","given":"S.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":455230,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70036279,"text":"70036279 - 2010 - Southern high latitude dune fields on Mars: Morphology, aeolian inactivity, and climate change","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036279","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1801,"text":"Geomorphology","active":true,"publicationSubtype":{"id":10}},"title":"Southern high latitude dune fields on Mars: Morphology, aeolian inactivity, and climate change","docAbstract":"In a study area spanning the martian surface poleward of 50?? S., 1190 dune fields have been identified, mapped, and categorized based on dune field morphology. Dune fields in the study area span ??? 116400km2, leading to a global dune field coverage estimate of ???904000km2, far less than that found on Earth. Based on distinct morphological features, the dune fields were grouped into six different classes that vary in interpreted aeolian activity level from potentially active to relatively inactive and eroding. The six dune field classes occur in specific latitude zones, with a sequence of reduced activity and degradation progressing poleward. In particular, the first signs of stabilization appear at ???60?? S., which broadly corresponds to the edge of high concentrations of water-equivalent hydrogen content (observed by the Neutron Spectrometer) that have been interpreted as ground ice. This near-surface ground ice likely acts to reduce sand availability in the present climate state on Mars, stabilizing high latitude dunes and allowing erosional processes to change their morphology. As a result, climatic changes in the content of near-surface ground ice are likely to influence the level of dune activity. Spatial variation of dune field classes with longitude is significant, suggesting that local conditions play a major role in determining dune field activity level. Dune fields on the south polar layered terrain, for example, appear either potentially active or inactive, indicating that at least two generations of dune building have occurred on this surface. Many dune fields show signs of degradation mixed with crisp-brinked dunes, also suggesting that more than one generation of dune building has occurred since they originally formed. Dune fields superposed on early and late Amazonian surfaces provide potential upper age limits of ???100My on the south polar layered deposits and ???3Ga elsewhere at high latitudes. No craters are present on any identifiable dune fields, which can provide a lower age limit through crater counting: assuming all relatively stabilized dune fields represent a single noncontiguous surface of uniform age, their estimated crater retention age is &lt;???10000years. An average-sized uncratered dune field (94km2) has a crater retention age &lt;???8My. This apparent youth suggests that present-day climate conditions are responsible for the observed degradation and reduced level of aeolian activity. A lack of observed transport pathways and the absence of large dune fields in the largest basins (Hellas and Argyre Planitiae) are consistent with the previously proposed idea that dune sands are not typically transported far from their source regions on Mars. ?? 2009 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geomorphology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.geomorph.2009.11.006","issn":"0169555X","usgsCitation":"Fenton, L., and Hayward, R., 2010, Southern high latitude dune fields on Mars: Morphology, aeolian inactivity, and climate change: Geomorphology, v. 121, no. 1-2, p. 98-121, https://doi.org/10.1016/j.geomorph.2009.11.006.","startPage":"98","endPage":"121","numberOfPages":"24","costCenters":[],"links":[{"id":218197,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.geomorph.2009.11.006"},{"id":246183,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"121","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b93f1e4b08c986b31a78d","contributors":{"authors":[{"text":"Fenton, L.K.","contributorId":102189,"corporation":false,"usgs":true,"family":"Fenton","given":"L.K.","affiliations":[],"preferred":false,"id":455237,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayward, R.K.","contributorId":31885,"corporation":false,"usgs":true,"family":"Hayward","given":"R.K.","email":"","affiliations":[],"preferred":false,"id":455236,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70036337,"text":"70036337 - 2010 - Geochemical constraints on the origin and volume of gas in the New Albany Shale (Devonian-Mississippian), eastern Illinois Basin","interactions":[],"lastModifiedDate":"2013-01-16T20:14:31","indexId":"70036337","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Geochemical constraints on the origin and volume of gas in the New Albany Shale (Devonian-Mississippian), eastern Illinois Basin","docAbstract":"This study involved analyses of kerogen petrography, gas desorption, geochemistry, microporosity, and mesoporosity of the New Albany Shale (Devonian-Mississippian) in the eastern part of the Illinois Basin. Specifically, detailed core analysis from two locations, one in Owen County, Indiana, and one in Pike County, Indiana, has been conducted. The gas content in the locations studied was primarily dependent on total organic carbon content and the micropore volume of the shales. Gas origin was assessed using stable isotope geochemistry. Measured and modeled vitrinite reflectance values were compared. Depth of burial and formation water salinity dictated different dominant origins of the gas in place in the two locations studied in detail. The shallower Owen County location (415-433 m [1362-1421 ft] deep) contained significant additions of microbial methane, whereas the Pike County location (832-860 m [2730-2822 ft] deep) was characterized exclusively by thermogenic gas. Despite differences in the gas origin, the total gas in both locations was similar, reaching up to 2.1 cm3/g (66 scf/ton). Lower thermogenic gas content in the shallower location (lower maturity and higher loss of gas related to uplift and leakage via relaxed fractures) was compensated for by the additional generation of microbial methane, which was stimulated by an influx of glacial melt water, inducing brine dilution and microbial inoculation. The characteristics of the shale of the Maquoketa Group (Ordovician) in the Pike County location are briefly discussed to provide a comparison to the New Albany Shale. Copyright ??2010. The American Association of Petroleum Geologists. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Association of Petroleum Geologists Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Association of Petroleum Geologists (AAPG)","publisherLocation":"Tulsa, OK","doi":"10.1306/06301009197","issn":"01491423","usgsCitation":"Strapoc, D., Mastalerz, M., Schimmelmann, A., Drobniak, A., and Hasenmueller, N., 2010, Geochemical constraints on the origin and volume of gas in the New Albany Shale (Devonian-Mississippian), eastern Illinois Basin: American Association of Petroleum Geologists Bulletin, v. 94, no. 11, p. 1713-1740, https://doi.org/10.1306/06301009197.","startPage":"1713","endPage":"1740","numberOfPages":"28","costCenters":[],"links":[{"id":218553,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1306/06301009197"},{"id":246575,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a15f8e4b0c8380cd54fe5","contributors":{"authors":[{"text":"Strapoc, D.","contributorId":42693,"corporation":false,"usgs":true,"family":"Strapoc","given":"D.","email":"","affiliations":[],"preferred":false,"id":455604,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastalerz, Maria","contributorId":78065,"corporation":false,"usgs":true,"family":"Mastalerz","given":"Maria","affiliations":[],"preferred":false,"id":455605,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schimmelmann, A.","contributorId":28348,"corporation":false,"usgs":false,"family":"Schimmelmann","given":"A.","affiliations":[],"preferred":false,"id":455603,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Drobniak, A.","contributorId":11748,"corporation":false,"usgs":true,"family":"Drobniak","given":"A.","affiliations":[],"preferred":false,"id":455602,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hasenmueller, N.R.","contributorId":89950,"corporation":false,"usgs":true,"family":"Hasenmueller","given":"N.R.","email":"","affiliations":[],"preferred":false,"id":455606,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70036367,"text":"70036367 - 2010 - Recruitment of burbot (Lota lota L.) in Lake Erie: An empirical modelling approach","interactions":[],"lastModifiedDate":"2012-03-12T17:22:02","indexId":"70036367","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1471,"text":"Ecology of Freshwater Fish","active":true,"publicationSubtype":{"id":10}},"title":"Recruitment of burbot (Lota lota L.) in Lake Erie: An empirical modelling approach","docAbstract":"World-wide, many burbot Lota lota (L.) populations have been extirpated or are otherwise in need of conservation measures. By contrast, burbot made a dramatic recovery in Lake Erie during 1993-2001 but declined during 2002-2007, due in part to a sharp decrease in recruitment. We used Akaike's Information Criterion to evaluate 129 linear regression models that included all combinations of one to seven ecological indices as predictors of burbot recruitment. Two models were substantially supported by the data: (i) the number of days in which water temperatures were within optimal ranges for burbot spawning and development combined with biomass of yearling and older (YAO) yellow perch Perca flavescens (Mitchill); and (ii) biomass of YAO yellow perch. Warmer winter water temperatures and increases in yellow perch biomass were associated with decreases in burbot recruitment. Continued warm winter water temperatures could result in declines in burbot recruitment, particularly in the southern part of the species' range. Published 2010. This article is a US Government work and is in the public domain in the USA.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecology of Freshwater Fish","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1600-0633.2010.00414.x","issn":"09066691","usgsCitation":"Stapanian, M., Witzel, L., and Cook, A., 2010, Recruitment of burbot (Lota lota L.) in Lake Erie: An empirical modelling approach: Ecology of Freshwater Fish, v. 19, no. 3, p. 326-337, https://doi.org/10.1111/j.1600-0633.2010.00414.x.","startPage":"326","endPage":"337","numberOfPages":"12","costCenters":[],"links":[{"id":218526,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1600-0633.2010.00414.x"},{"id":246546,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"3","noUsgsAuthors":false,"publicationDate":"2010-08-15","publicationStatus":"PW","scienceBaseUri":"50e4a355e4b0e8fec6cdb828","contributors":{"authors":[{"text":"Stapanian, M.A.","contributorId":65437,"corporation":false,"usgs":true,"family":"Stapanian","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":455754,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Witzel, L.D.","contributorId":70324,"corporation":false,"usgs":true,"family":"Witzel","given":"L.D.","email":"","affiliations":[],"preferred":false,"id":455755,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cook, A.","contributorId":88174,"corporation":false,"usgs":true,"family":"Cook","given":"A.","affiliations":[],"preferred":false,"id":455756,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70036370,"text":"70036370 - 2010 - Distribution, behavior, and transport of inorganic and methylmercury in a high gradient stream","interactions":[],"lastModifiedDate":"2012-03-12T17:22:02","indexId":"70036370","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Distribution, behavior, and transport of inorganic and methylmercury in a high gradient stream","docAbstract":"Concentrations of Hg remain elevated in physical and biological media of the South River (Virginia, USA), despite the cessation of the industrial use of Hg in its watershed nearly six decades ago, and physical characteristics that would not seem to favor Hg(II)-methylation. A 3-a study of inorganic Hg (IHg) and methylmercury (MeHg) was conducted in physical media (soil, sediment, surface water, porewater and soil/sediment extracts) to identify non-point sources, transport mechanisms, and potential controls on Hg(II)-methylation. Data collected from surface water and sediment indicate that the majority of the non-point sources of IHg to the South River are within the first 14. km downstream from the historic point source. Partitioning data indicate that particle bound IHg is introduced in this reach, releasing dissolved and colloidal bound IHg, which is transported downstream. Extraction experiments revealed that floodplain soils released a higher fraction of their IHg content in aqueous extractions than fine-grained sediment (FGS). Based on ultrafiltration [<5000 nominal molecular weight cutoff (NMWC)] the majority of soil IHg released was colloidal in nature, providing evidence for the continued evolution of IHg for Hg(II)-methylation from soil. Strong seasonal patterns in MeHg concentrations were observed in surface water and sediment. The highest concentrations of MeHg in surface water were observed at moderate temperatures, suggesting that other factors limit net Hg(II)-methylation. Seasonal changes in sediment organic content and the fraction of 1. N KOH-extractable THg were also observed and may be important factors in controlling net Hg(II)-methylation rates. Sulfate concentrations in surface water are low and the evidence suggests that Fe reduction may be an important Hg(II)-methylation process. The highest sediment MeHg concentrations were observed in habitats with large amounts of FGS, which are more prevalent in the upper half of the study area due to the lower hydrologic gradient and agricultural impacts. Past and present land use practices and other geomorphologic controls contribute to the erosion of banks and accumulation of fine-grained sediment in this section of the river, acting as sources of IHg. ?? 2010 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2010.09.004","issn":"08832927","usgsCitation":"Flanders, J., Turner, R., Morrison, T., Jensen, R., Pizzuto, J., Skalak, K., and Stahl, R., 2010, Distribution, behavior, and transport of inorganic and methylmercury in a high gradient stream: Applied Geochemistry, v. 25, no. 11, p. 1756-1769, https://doi.org/10.1016/j.apgeochem.2010.09.004.","startPage":"1756","endPage":"1769","numberOfPages":"14","costCenters":[],"links":[{"id":218581,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2010.09.004"},{"id":246606,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a031ce4b0c8380cd50346","contributors":{"authors":[{"text":"Flanders, J.R.","contributorId":87401,"corporation":false,"usgs":true,"family":"Flanders","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":455768,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, R.R.","contributorId":29983,"corporation":false,"usgs":true,"family":"Turner","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":455764,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morrison, T.","contributorId":90966,"corporation":false,"usgs":true,"family":"Morrison","given":"T.","affiliations":[],"preferred":false,"id":455769,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jensen, R.","contributorId":58877,"corporation":false,"usgs":true,"family":"Jensen","given":"R.","affiliations":[],"preferred":false,"id":455766,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pizzuto, J.","contributorId":32381,"corporation":false,"usgs":true,"family":"Pizzuto","given":"J.","email":"","affiliations":[],"preferred":false,"id":455765,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Skalak, K.","contributorId":22997,"corporation":false,"usgs":true,"family":"Skalak","given":"K.","affiliations":[],"preferred":false,"id":455763,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Stahl, R.","contributorId":60888,"corporation":false,"usgs":true,"family":"Stahl","given":"R.","email":"","affiliations":[],"preferred":false,"id":455767,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70036393,"text":"70036393 - 2010 - Diviner lunar radiometer observations of cold traps in the moon's south polar region","interactions":[],"lastModifiedDate":"2012-03-12T17:22:07","indexId":"70036393","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Diviner lunar radiometer observations of cold traps in the moon's south polar region","docAbstract":"Diviner Lunar Radiometer Experiment surface-temperature maps reveal the existence of widespread surface and near-surface cryogenic regions that extend beyond the boundaries of persistent shadow. The Lunar Crater Observation and Sensing Satellite (LCROSS) struck one of the coldest of these regions, where subsurface temperatures are estimated to be 38 kelvin. Large areas of the lunar polar regions are currently cold enough to cold-trap water ice as well as a range of both more volatile and less volatile species. The diverse mixture of water and high-volatility compounds detected in the LCROSS ejecta plume is strong evidence for the impact delivery and cold-trapping of volatiles derived from primitive outer solar system bodies.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1126/science.1187726","issn":"00368075","usgsCitation":"Paige, D.A., Siegler, M., Zhang, J., Hayne, P., Foote, E., Bennett, K., Vasavada, A., Greenhagen, B.T., Schofield, J.T., McCleese, D.J., Foote, M.C., DeJong, E., Bills, B., Hartford, W., Murray, B.C., Allen, C.C., Snook, K., Soderblom, L., Calcutt, S., Taylor, F.W., Bowles, N.E., Bandfield, J., Elphic, R., Ghent, R., Glotch, T., Wyatt, M., and Lucey, P.G., 2010, Diviner lunar radiometer observations of cold traps in the moon's south polar region: Science, v. 330, no. 6003, p. 479-482, https://doi.org/10.1126/science.1187726.","startPage":"479","endPage":"482","numberOfPages":"4","costCenters":[],"links":[{"id":218437,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1126/science.1187726"},{"id":246445,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"330","issue":"6003","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0354e4b0c8380cd5042f","contributors":{"authors":[{"text":"Paige, D. A.","contributorId":7881,"corporation":false,"usgs":false,"family":"Paige","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":455892,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Siegler, M.A.","contributorId":21807,"corporation":false,"usgs":true,"family":"Siegler","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":455896,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhang, J.A.","contributorId":98157,"corporation":false,"usgs":true,"family":"Zhang","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":455914,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hayne, P.O.","contributorId":73449,"corporation":false,"usgs":true,"family":"Hayne","given":"P.O.","email":"","affiliations":[],"preferred":false,"id":455910,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Foote, E.J.","contributorId":68150,"corporation":false,"usgs":true,"family":"Foote","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":455907,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bennett, K.A.","contributorId":11031,"corporation":false,"usgs":true,"family":"Bennett","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":455894,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Vasavada, A.R.","contributorId":98056,"corporation":false,"usgs":true,"family":"Vasavada","given":"A.R.","affiliations":[],"preferred":false,"id":455913,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Greenhagen, B. T.","contributorId":15447,"corporation":false,"usgs":false,"family":"Greenhagen","given":"B.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":455895,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Schofield, J. T.","contributorId":26099,"corporation":false,"usgs":false,"family":"Schofield","given":"J.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":455897,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"McCleese, D. J.","contributorId":97679,"corporation":false,"usgs":false,"family":"McCleese","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":455912,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Foote, M. C.","contributorId":6306,"corporation":false,"usgs":false,"family":"Foote","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":455891,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"DeJong, E.","contributorId":40458,"corporation":false,"usgs":true,"family":"DeJong","given":"E.","email":"","affiliations":[],"preferred":false,"id":455900,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Bills, B.G.","contributorId":107867,"corporation":false,"usgs":true,"family":"Bills","given":"B.G.","email":"","affiliations":[],"preferred":false,"id":455916,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Hartford, W.","contributorId":73047,"corporation":false,"usgs":true,"family":"Hartford","given":"W.","email":"","affiliations":[],"preferred":false,"id":455909,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Murray, B. C.","contributorId":49870,"corporation":false,"usgs":false,"family":"Murray","given":"B.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":455902,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Allen, C. C.","contributorId":74181,"corporation":false,"usgs":false,"family":"Allen","given":"C.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":455911,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Snook, K.","contributorId":49632,"corporation":false,"usgs":false,"family":"Snook","given":"K.","email":"","affiliations":[],"preferred":false,"id":455901,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Soderblom, L.A. 0000-0002-0917-853X","orcid":"https://orcid.org/0000-0002-0917-853X","contributorId":6139,"corporation":false,"usgs":true,"family":"Soderblom","given":"L.A.","affiliations":[],"preferred":false,"id":455890,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Calcutt, S.","contributorId":50022,"corporation":false,"usgs":false,"family":"Calcutt","given":"S.","affiliations":[],"preferred":false,"id":455903,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Taylor, F. W.","contributorId":57598,"corporation":false,"usgs":false,"family":"Taylor","given":"F.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":455904,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Bowles, N. E.","contributorId":65313,"corporation":false,"usgs":false,"family":"Bowles","given":"N.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":455906,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Bandfield, J. L.","contributorId":59990,"corporation":false,"usgs":false,"family":"Bandfield","given":"J. L.","affiliations":[],"preferred":false,"id":455905,"contributorType":{"id":1,"text":"Authors"},"rank":22},{"text":"Elphic, R.","contributorId":107138,"corporation":false,"usgs":true,"family":"Elphic","given":"R.","affiliations":[],"preferred":false,"id":455915,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"Ghent, R.","contributorId":32388,"corporation":false,"usgs":true,"family":"Ghent","given":"R.","email":"","affiliations":[],"preferred":false,"id":455898,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Glotch, T.D.","contributorId":10966,"corporation":false,"usgs":true,"family":"Glotch","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":455893,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"Wyatt, M.B.","contributorId":33893,"corporation":false,"usgs":true,"family":"Wyatt","given":"M.B.","email":"","affiliations":[],"preferred":false,"id":455899,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Lucey, P. G.","contributorId":72532,"corporation":false,"usgs":false,"family":"Lucey","given":"P.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":455908,"contributorType":{"id":1,"text":"Authors"},"rank":27}]}}
,{"id":70036395,"text":"70036395 - 2010 - Relative vulnerability of public supply wells to VOC contamination in hydrologically distinct regional aquifers","interactions":[],"lastModifiedDate":"2018-10-11T10:25:58","indexId":"70036395","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1864,"text":"Ground Water Monitoring and Remediation","active":true,"publicationSubtype":{"id":10}},"title":"Relative vulnerability of public supply wells to VOC contamination in hydrologically distinct regional aquifers","docAbstract":"<p>A process-based methodology was used to compare the vulnerability of public supply wells tapping seven study areas in four hydrologically distinct regional aquifers to volatile organic compound (VOC) contamination. This method considers (1) contributing areas and travel times of groundwater flowpaths converging at individual supply wells, (2) the oxic and/or anoxic conditions encountered along each flowpath, and (3) the combined effects of hydrodynamic dispersion and contaminant- and oxic/anoxic-specific biodegradation. Contributing areas and travel times were assessed using particle tracks generated from calibrated regional groundwater flow models. These results were then used to estimate VOC concentrations relative to an unspecified initial concentration (C/C0) at individual public supply wells. The results show that the vulnerability of public supply wells to VOC contamination varies widely between different regional aquifers. Low-recharge rates, long travel times, and the predominantly oxic conditions characteristic of Basin and Range aquifers in the western United States leads to lower vulnerability to VOCs, particularly to petroleum hydrocarbons such as benzene and toluene. On the other hand, high recharge rates and short residence times characteristic of the glacial aquifers of the eastern United States leads to greater vulnerability to VOCs. These differences lead to distinct patterns of C/C0 values estimated for public supply wells characteristic of each aquifer, information that can be used by resource managers to develop monitoring plans based on relative vulnerability, to locate new public supply wells, or to make land-use management decisions.</p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6592.2010.01308.x","issn":"10693629","usgsCitation":"Kauffman, L.J., and Chapelle, F.H., 2010, Relative vulnerability of public supply wells to VOC contamination in hydrologically distinct regional aquifers: Ground Water Monitoring and Remediation, v. 30, no. 4, p. 54-63, https://doi.org/10.1111/j.1745-6592.2010.01308.x.","productDescription":"10 p.","startPage":"54","endPage":"63","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":218467,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6592.2010.01308.x"},{"id":246479,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-08-20","publicationStatus":"PW","scienceBaseUri":"505aa6a2e4b0c8380cd84f79","contributors":{"authors":[{"text":"Kauffman, Leon J. 0000-0003-4564-0362 lkauff@usgs.gov","orcid":"https://orcid.org/0000-0003-4564-0362","contributorId":1094,"corporation":false,"usgs":true,"family":"Kauffman","given":"Leon","email":"lkauff@usgs.gov","middleInitial":"J.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":455926,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chapelle, Francis H. chapelle@usgs.gov","contributorId":1350,"corporation":false,"usgs":true,"family":"Chapelle","given":"Francis","email":"chapelle@usgs.gov","middleInitial":"H.","affiliations":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true},{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true}],"preferred":true,"id":455927,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70036420,"text":"70036420 - 2010 - Uses and biases of volunteer water quality data","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036420","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Uses and biases of volunteer water quality data","docAbstract":"State water quality monitoring has been augmented by volunteer monitoring programs throughout the United States. Although a significant effort has been put forth by volunteers, questions remain as to whether volunteer data are accurate and can be used by regulators. In this study, typical volunteer water quality measurements from laboratory and environmental samples in Iowa were analyzed for error and bias. Volunteer measurements of nitrate+nitrite were significantly lower (about 2-fold) than concentrations determined via standard methods in both laboratory-prepared and environmental samples. Total reactive phosphorus concentrations analyzed by volunteers were similar to measurements determined via standard methods in laboratory-prepared samples and environmental samples, but were statistically lower than the actual concentration in four of the five laboratory-prepared samples. Volunteer water quality measurements were successful in identifying and classifying most of the waters which violate United States Environmental Protection Agency recommended water quality criteria for total nitrogen (66%) and for total phosphorus (52%) with the accuracy improving when accounting for error and biases in the volunteer data. An understanding of the error and bias in volunteer water quality measurements can allow regulators to incorporate volunteer water quality data into total maximum daily load planning or state water quality reporting. ?? 2010 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es100164c","issn":"0013936X","usgsCitation":"Loperfido, J., Beyer, P., Just, C., and Schnoor, J., 2010, Uses and biases of volunteer water quality data: Environmental Science & Technology, v. 44, no. 19, p. 7193-7199, https://doi.org/10.1021/es100164c.","startPage":"7193","endPage":"7199","numberOfPages":"7","costCenters":[],"links":[{"id":218349,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es100164c"},{"id":246349,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"19","noUsgsAuthors":false,"publicationDate":"2010-06-11","publicationStatus":"PW","scienceBaseUri":"505bc003e4b08c986b329e9a","contributors":{"authors":[{"text":"Loperfido, J.V.","contributorId":90970,"corporation":false,"usgs":true,"family":"Loperfido","given":"J.V.","email":"","affiliations":[],"preferred":false,"id":456055,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beyer, P.","contributorId":71815,"corporation":false,"usgs":true,"family":"Beyer","given":"P.","email":"","affiliations":[],"preferred":false,"id":456054,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Just, C.L.","contributorId":94899,"corporation":false,"usgs":true,"family":"Just","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":456057,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schnoor, J. L.","contributorId":92095,"corporation":false,"usgs":true,"family":"Schnoor","given":"J. L.","affiliations":[],"preferred":false,"id":456056,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70036421,"text":"70036421 - 2010 - Water quality of least-impaired lakes in eastern and southern Arkansas","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036421","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"Water quality of least-impaired lakes in eastern and southern Arkansas","docAbstract":"A three-phased study identified one least-impaired (reference) lake for each of four Arkansas lake classifications: three classifications in the Mississippi Alluvial Plain (MAP) ecoregion and a fourth classification in the South Central Plains (SCP) ecoregion. Water quality at three of the least-impaired lakes generally was comparable and also was comparable to water quality from Kansas and Missouri reference lakes and Texas least-impaired lakes. Water quality of one least-impaired lake in the MAP ecoregion was not as good as water quality in other least-impaired lakes in Arkansas or in the three other states: a probable consequence of all lakes in that classification having a designated use as a source of irrigation water. Chemical and physical conditions for all four lake classifications were at times naturally harsh as limnological characteristics changed temporally. As a consequence of allochthonous organic material, oxbow lakes isolated within watersheds comprised of swamps were susceptible to low dissolved oxygen concentrations to the extent that conditions would be limiting to some aquatic biota. Also, pH in lakes in the SCP ecoregion was <6.0, a level exceeding current Arkansas water-quality standards but typical of black water systems. Water quality of the deepest lakes exceeded that of shallow lakes. N/P ratios and trophic state indices may be less effective for assessing water quality for shallow lakes (<2 m) than for deep lakes because there is an increased exposure of sediment (and associated phosphorus) to disturbance and light in the former. ?? 2009 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Monitoring and Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10661-009-1120-5","issn":"01676369","usgsCitation":"Justus, B., 2010, Water quality of least-impaired lakes in eastern and southern Arkansas: Environmental Monitoring and Assessment, v. 168, no. 1-4, p. 363-383, https://doi.org/10.1007/s10661-009-1120-5.","startPage":"363","endPage":"383","numberOfPages":"21","costCenters":[],"links":[{"id":218350,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10661-009-1120-5"},{"id":246350,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"168","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2009-08-25","publicationStatus":"PW","scienceBaseUri":"505bc8d4e4b08c986b32cb24","contributors":{"authors":[{"text":"Justus, B.","contributorId":74232,"corporation":false,"usgs":true,"family":"Justus","given":"B.","affiliations":[],"preferred":false,"id":456058,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70036424,"text":"70036424 - 2010 - Inherent Limitations of Hydraulic Tomography","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036424","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Inherent Limitations of Hydraulic Tomography","docAbstract":"We offer a cautionary note in response to an increasing level of enthusiasm regarding high-resolution aquifer characterization with hydraulic tomography. We use synthetic examples based on two recent field experiments to demonstrate that a high degree of nonuniqueness remains in estimates of hydraulic parameter fields even when those estimates are based on simultaneous analysis of a number of carefully controlled hydraulic tests. We must, therefore, be careful not to oversell the technique to the community of practicing hydrogeologists, promising a degree of accuracy and resolution that, in many settings, will remain unattainable, regardless of the amount of effort invested in the field investigation. No practically feasible amount of hydraulic tomography data will ever remove the need to regularize or bias the inverse problem in some fashion in order to obtain a unique solution. Thus, along with improving the resolution of hydraulic tomography techniques, we must also strive to couple those techniques with procedures for experimental design and uncertainty assessment and with other more cost-effective field methods, such as geophysical surveying and, in unconsolidated formations, direct-push profiling, in order to develop methods for subsurface characterization with the resolution and accuracy needed for practical field applications. Copyright ?? 2010 The Author(s). Journal compilation ?? 2010 National Ground Water Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2010.00757.x","issn":"0017467X","usgsCitation":"Bohling, G.C., and Butler, J., 2010, Inherent Limitations of Hydraulic Tomography: Ground Water, v. 48, no. 6, p. 809-824, https://doi.org/10.1111/j.1745-6584.2010.00757.x.","startPage":"809","endPage":"824","numberOfPages":"16","costCenters":[],"links":[{"id":246411,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218408,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2010.00757.x"}],"volume":"48","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-09-22","publicationStatus":"PW","scienceBaseUri":"505a3bcfe4b0c8380cd62844","contributors":{"authors":[{"text":"Bohling, Geoffrey C.","contributorId":43109,"corporation":false,"usgs":false,"family":"Bohling","given":"Geoffrey","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":456083,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butler, J.J.","contributorId":55605,"corporation":false,"usgs":true,"family":"Butler","given":"J.J.","affiliations":[],"preferred":false,"id":456084,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70036449,"text":"70036449 - 2010 - Mercury and methylmercury dynamics in a coastal plain watershed, New Jersey, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036449","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"Mercury and methylmercury dynamics in a coastal plain watershed, New Jersey, USA","docAbstract":"The upper Great Egg Harbor River watershed in New Jersey's Coastal Plain is urbanized but extensive freshwater wetlands are present downstream. In 2006-2007, studies to assess levels of total mercury (THg) found concentrations in unfiltered streamwater to range as high as 187 ng/L in urbanized areas. THg concentrations were <20 ng/L in streamwater in forested/wetlands areas where both THg and dissolved organic carbon concentrations tended to increase while pH and concentrations of dissolved oxygen and nitrate decreased with flushing of soils after rain. Most of the river's flow comes from groundwater seepage; unfiltered groundwater samples contained up to 177 ng/L of THg in urban areas where there is a history of well water with THg that exceeds the drinking water standard (2,000 ng/L). THg concentrations were lower (<25 ng/L) in unfiltered groundwater from downstream wetland areas. In addition to higher THg concentrations (mostly particulate), concentrations of chloride were higher in streamwater and groundwater from urban areas than in those from downstream wetland areas. Methylmercury (MeHg) concentrations in unfiltered streamwater ranged from 0.17 ng/L at a forest/wetlands site to 2.94 ng/L at an urban site. The percentage of THg present as MeHg increased as the percentage of forest + wetlands increased, but also was high in some urban areas. MeHg was detected only in groundwater <1 m below the water/sediment interface. Atmospheric deposition is presumed to be the main source of Hg to the wetlands and also may be a source to groundwater, where wastewater inputs in urban areas are hypothesized to mobilize Hg deposited to soils. ?? 2010 US Government.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water, Air, and Soil Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11270-010-0340-1","issn":"00496979","usgsCitation":"Barringer, J.L., Riskin, M., Szabo, Z., Reilly, P., Rosman, R., Bonin, J., Fischer, J., and Heckathorn, H., 2010, Mercury and methylmercury dynamics in a coastal plain watershed, New Jersey, USA: Water, Air, & Soil Pollution, v. 212, no. 1-4, p. 251-273, https://doi.org/10.1007/s11270-010-0340-1.","startPage":"251","endPage":"273","numberOfPages":"23","costCenters":[],"links":[{"id":246288,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218289,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11270-010-0340-1"}],"volume":"212","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2010-02-24","publicationStatus":"PW","scienceBaseUri":"505a53dbe4b0c8380cd6cd71","contributors":{"authors":[{"text":"Barringer, J. L.","contributorId":13994,"corporation":false,"usgs":true,"family":"Barringer","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":456210,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Riskin, M.L.","contributorId":33384,"corporation":false,"usgs":true,"family":"Riskin","given":"M.L.","affiliations":[],"preferred":false,"id":456212,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Szabo, Z. 0000-0002-0760-9607","orcid":"https://orcid.org/0000-0002-0760-9607","contributorId":44302,"corporation":false,"usgs":true,"family":"Szabo","given":"Z.","affiliations":[],"preferred":false,"id":456213,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reilly, P.A. 0000-0002-2937-4490","orcid":"https://orcid.org/0000-0002-2937-4490","contributorId":26153,"corporation":false,"usgs":true,"family":"Reilly","given":"P.A.","affiliations":[],"preferred":false,"id":456211,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rosman, R. 0000-0001-5042-1872","orcid":"https://orcid.org/0000-0001-5042-1872","contributorId":62852,"corporation":false,"usgs":true,"family":"Rosman","given":"R.","affiliations":[],"preferred":false,"id":456215,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bonin, J.L. 0000-0002-5813-3549","orcid":"https://orcid.org/0000-0002-5813-3549","contributorId":55642,"corporation":false,"usgs":true,"family":"Bonin","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":456214,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Fischer, J.M. 0000-0003-2996-9272","orcid":"https://orcid.org/0000-0003-2996-9272","contributorId":74419,"corporation":false,"usgs":true,"family":"Fischer","given":"J.M.","affiliations":[],"preferred":false,"id":456216,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Heckathorn, H.A.","contributorId":107772,"corporation":false,"usgs":true,"family":"Heckathorn","given":"H.A.","affiliations":[],"preferred":false,"id":456217,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70036452,"text":"70036452 - 2010 - Application of the surface azimuthal electrical resistivity survey method to determine patterns of regional joint orientation in glacial tills","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036452","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1541,"text":"Environmental Geosciences","active":true,"publicationSubtype":{"id":10}},"title":"Application of the surface azimuthal electrical resistivity survey method to determine patterns of regional joint orientation in glacial tills","docAbstract":"Joints within unconsolidated material such as glacial till can be primary avenues for the flow of electrical charge, water, and contaminants. To facilitate the siting and design of remediation programs, a need exists to map anisotropic distribution of such pathways within glacial tills by determining the azimuth of the dominant joint set. The azimuthal survey method uses standard resistivity equipment with a Wenner array rotated about a fixed center point at selected degree intervals that yields an apparent resistivity ellipse. From this ellipse, joint set orientation can be determined. Azimuthal surveys were conducted at 21 sites in a 500-km2 (193 mi2) area around Milwaukee, Wisconsin, and more specifically, at sites having more than 30 m (98 ft) of glacial till (to minimize the influence of underlying bedrock joints). The 26 azimuthal surveys revealed a systematic pattern to the trend of the dominant joint set within the tills, which is approximately parallel to ice flow direction during till deposition. The average orientation of the joint set parallel with the ice flow direction is N77??E and N37??E for the Oak Creek and Ozaukee tills, respectively. The mean difference between average direct observation of joint set orientations and average azimuthal resistivity results is 8??, which is one fifth of the difference of ice flow direction between the Ozaukee and Oak Creek tills. The results of this study suggest that the surface azimuthal electrical resistivity survey method used for local in situ studies can be a useful noninvasive method for delineating joint sets within shallow geologic material for regional studies. Copyright ?? 2010 The American Association of Petroleum Geologists/Division of Environmental Geosciences. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1306/eg.04061010002","issn":"10759565","usgsCitation":"Carlson, D.R., 2010, Application of the surface azimuthal electrical resistivity survey method to determine patterns of regional joint orientation in glacial tills: Environmental Geosciences, v. 17, no. 4, p. 175-192, https://doi.org/10.1306/eg.04061010002.","startPage":"175","endPage":"192","numberOfPages":"18","costCenters":[],"links":[{"id":218351,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1306/eg.04061010002"},{"id":246351,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ecbae4b0c8380cd4944f","contributors":{"authors":[{"text":"Carlson, David R.","contributorId":89100,"corporation":false,"usgs":true,"family":"Carlson","given":"David","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":456227,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70036453,"text":"70036453 - 2010 - The areal extent of brown shrimp habitat suitability in Mobile Bay, Alabama, USA: Targeting vegetated habitat restoration","interactions":[],"lastModifiedDate":"2012-03-12T17:22:03","indexId":"70036453","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"The areal extent of brown shrimp habitat suitability in Mobile Bay, Alabama, USA: Targeting vegetated habitat restoration","docAbstract":"The availability of wetlands and shallow water habitats significantly influences Gulf of Mexico (GOM) penaeid shrimp fishery productivity. However, the GOM region has the highest rate of wetland loss in the USA. Protection and management of these vital GOM habitats are critical to sustainable shrimp fisheries. Brown shrimp (Farfantepenaeus aztecus) are a major component of GOM fisheries. We present an approach for estimating the areal extent of suitable habitat for post-larval and juvenile brown shrimp in Mobile Bay, Alabama, using an existing habitat suitability index model for the northern GOM calculated from probabilistic survey of water quality and sediment data, land cover data, and submerged aquatic vegetation coverages. This estuarine scale approach is intended to support targeted protection and restoration of these habitats. These analyses indicate that approximately 60% of the area of Mobile Bay is categorized as suitable to near optimal for post-larval and juvenile shrimp and 38% of the area is marginally to minimally suitable. We identify potential units within Mobile Bay for targeted restoration to improve habitat suitability. ?? 2010 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Monitoring and Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10661-009-1303-0","issn":"01676369","usgsCitation":"Smith, L., Nestlerode, J., Harwell, L., and Bourgeois, P., 2010, The areal extent of brown shrimp habitat suitability in Mobile Bay, Alabama, USA: Targeting vegetated habitat restoration: Environmental Monitoring and Assessment, v. 171, no. 1-4, p. 611-620, https://doi.org/10.1007/s10661-009-1303-0.","startPage":"611","endPage":"620","numberOfPages":"10","costCenters":[],"links":[{"id":218352,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10661-009-1303-0"},{"id":246352,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"171","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2010-01-16","publicationStatus":"PW","scienceBaseUri":"505ba9d1e4b08c986b322525","contributors":{"authors":[{"text":"Smith, L.M.","contributorId":82650,"corporation":false,"usgs":true,"family":"Smith","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":456230,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nestlerode, J.A.","contributorId":67738,"corporation":false,"usgs":true,"family":"Nestlerode","given":"J.A.","affiliations":[],"preferred":false,"id":456229,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harwell, L.C.","contributorId":45162,"corporation":false,"usgs":true,"family":"Harwell","given":"L.C.","email":"","affiliations":[],"preferred":false,"id":456228,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bourgeois, P.","contributorId":94498,"corporation":false,"usgs":true,"family":"Bourgeois","given":"P.","affiliations":[],"preferred":false,"id":456231,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70036479,"text":"70036479 - 2010 - Assemblage patterns of fish functional groups relative to habitat connectivity and conditions in floodplain lakes","interactions":[],"lastModifiedDate":"2012-03-12T17:22:04","indexId":"70036479","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1471,"text":"Ecology of Freshwater Fish","active":true,"publicationSubtype":{"id":10}},"title":"Assemblage patterns of fish functional groups relative to habitat connectivity and conditions in floodplain lakes","docAbstract":"We evaluated the influences of habitat connectivity and local environmental factors on the distribution and abundance patterns of fish functional groups in 17 floodplain lakes in the Yazoo River Basin, USA. The results of univariate and multivariate analyses showed that species-environmental relationships varied with the functional groups. Species richness and assemblage structure of periodic strategists showed strong and positive correlations with habitat connectivity. Densities of most equilibrium and opportunistic strategists decreased with habitat connectivity. Densities of certain equilibrium and opportunistic strategists increased with turbidity. Forested wetlands around the lakes were positively related to the densities of periodic and equilibrium strategists. These results suggest that decreases in habitat connectivity, forested wetland buffers and water quality resulting from environmental manipulations may cause local extinction of certain fish taxa and accelerate the dominance of tolerant fishes in floodplain lakes. ?? 2010 John Wiley & Sons A/S.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecology of Freshwater Fish","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1600-0633.2010.00438.x","issn":"09066691","usgsCitation":"Miyazono, S., Aycock, J., Miranda, L., and Tietjen, T., 2010, Assemblage patterns of fish functional groups relative to habitat connectivity and conditions in floodplain lakes: Ecology of Freshwater Fish, v. 19, no. 4, p. 578-585, https://doi.org/10.1111/j.1600-0633.2010.00438.x.","startPage":"578","endPage":"585","numberOfPages":"8","costCenters":[],"links":[{"id":218235,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1600-0633.2010.00438.x"},{"id":246227,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-11-11","publicationStatus":"PW","scienceBaseUri":"5059edc5e4b0c8380cd499c1","contributors":{"authors":[{"text":"Miyazono, S.","contributorId":79310,"corporation":false,"usgs":true,"family":"Miyazono","given":"S.","affiliations":[],"preferred":false,"id":456339,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aycock, J.N.","contributorId":105151,"corporation":false,"usgs":true,"family":"Aycock","given":"J.N.","email":"","affiliations":[],"preferred":false,"id":456341,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miranda, L.E.","contributorId":58406,"corporation":false,"usgs":true,"family":"Miranda","given":"L.E.","affiliations":[],"preferred":false,"id":456338,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tietjen, T.E.","contributorId":93249,"corporation":false,"usgs":true,"family":"Tietjen","given":"T.E.","email":"","affiliations":[],"preferred":false,"id":456340,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70036480,"text":"70036480 - 2010 - Effects of coalbed natural gas development on fish assemblages in tributary streams of the Powder and Tongue rivers","interactions":[],"lastModifiedDate":"2012-03-12T17:22:04","indexId":"70036480","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Effects of coalbed natural gas development on fish assemblages in tributary streams of the Powder and Tongue rivers","docAbstract":"1. Extraction of coalbed natural gas (CBNG) often results in disposal of large quantities of CBNG product water, which may affect aquatic ecosystems. We evaluated the effects of CBNG development on fish assemblages in tributary streams of the Powder and Tongue rivers. We used treatment and control, impact versus reference sites comparisons, surveys of CBNG product-water streams and in situ fish survival approaches to determine if CBNG development affected fish assemblages.2. Several of our results suggested that CBNG development did not affect fish assemblages. Species richness and index of biotic integrity (IBI) scores were similar in streams with and streams without CBNG development, and overall biotic integrity was not related to the number or density of CBNG wells. Fish occurred in one stream that was composed largely or entirely of CBNG product water. Sentinel fish survived in cages at treatment sites where no or few fish were captured, suggesting that factors such as lack of stream connectivity rather than water quality limited fish abundance at these sites. Fish species richness did not differ significantly from 1994 to 2006 in comparisons of CBNG-developed and undeveloped streams. Biotic integrity declined from 1994 to 2006; however, declines occurred at both impact and reference sites, possibly because of long-term drought.3. Some evidence suggested that CBNG development negatively affected fish assemblages, or may do so over time. Specific conductivity was on average higher in treatment streams and was negatively related to biotic integrity. Four IBI species richness metrics were negatively correlated with the number or density of CBNG wells in the catchment above sampling sites. Bicarbonate, one of the primary ions in product water, was significantly higher in developed streams and may have limited abundance of longnose dace (Rhinichthys cataractae). Total dissolved solids, alkalinity, magnesium and sulphate were significantly higher in developed streams.4. Biological monitoring conducted before the development of CBNG, and continuing through the life of development and reclamation, together with data on the quantity, quality and fate of CBNG product water will allow robust assessment of potential effects of future CBNG development worldwide. ?? 2010 Blackwell Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Freshwater Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2427.2010.02480.x","issn":"00465070","usgsCitation":"Davis, W., Bramblett, R., and Zale, A., 2010, Effects of coalbed natural gas development on fish assemblages in tributary streams of the Powder and Tongue rivers: Freshwater Biology, v. 55, no. 12, p. 2612-2625, https://doi.org/10.1111/j.1365-2427.2010.02480.x.","startPage":"2612","endPage":"2625","numberOfPages":"14","costCenters":[],"links":[{"id":218264,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2427.2010.02480.x"},{"id":246260,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"12","noUsgsAuthors":false,"publicationDate":"2010-08-24","publicationStatus":"PW","scienceBaseUri":"505a06b6e4b0c8380cd513ab","contributors":{"authors":[{"text":"Davis, W.N.","contributorId":107543,"corporation":false,"usgs":true,"family":"Davis","given":"W.N.","email":"","affiliations":[],"preferred":false,"id":456344,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bramblett, R.G.","contributorId":76576,"corporation":false,"usgs":true,"family":"Bramblett","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":456343,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zale, A.V.","contributorId":15793,"corporation":false,"usgs":true,"family":"Zale","given":"A.V.","affiliations":[],"preferred":false,"id":456342,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70036511,"text":"70036511 - 2010 - Reproductive failure of the red shiner (Cyprinella lutrensis) after exposure to an exogenous estrogen","interactions":[],"lastModifiedDate":"2012-03-12T17:22:04","indexId":"70036511","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Reproductive failure of the red shiner (Cyprinella lutrensis) after exposure to an exogenous estrogen","docAbstract":"Endocrine disrupting chemicals (EDCs) have been detected in surface waters worldwide and can lead to developmental and reproductive disruption in exposed fishes. In the US Great Plains, EDCs are impacting streams and rivers and may be causing adverse reproductive effects. To examine how estrogenic EDCs might affect reproductive success of plains fishes, we experimentally exposed male red shiners (Cyprinella lutrensis) to exogenous 17b-estradiol. We characterized the effects of estradiol on male gonadal histology and secondary sexual characteristics, determined whether exposure reduced reproductive success, and examined the effects of depuration. Adults were exposed to a mean concentration of 70 ng L-1 estradiol, a solvent control, or a water control for at least 83 days. Male exposure to estradiol resulted in elevated plasma vitellogenin concentrations, changes in spermatogenesis, reduced mating coloration and tubercles, altered mating behaviors, and reduced reproductive success with no viable progeny produced. Reproductive endpoints improved upon depuration (28 days). Exposure to estradiol had significant adverse effects on red shiners, indicating that wild populations may face developmental and reproductive difficulties if they are chronically exposed to estradiol.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/F10-092","issn":"0706652X","usgsCitation":"McGree, M., Winkelman, D., Vieira, N., and Vajda, A., 2010, Reproductive failure of the red shiner (Cyprinella lutrensis) after exposure to an exogenous estrogen: Canadian Journal of Fisheries and Aquatic Sciences, v. 67, no. 11, p. 1730-1743, https://doi.org/10.1139/F10-092.","startPage":"1730","endPage":"1743","numberOfPages":"14","costCenters":[],"links":[{"id":218266,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/F10-092"},{"id":246262,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"67","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa8d0e4b0c8380cd85ab7","contributors":{"authors":[{"text":"McGree, M.M.","contributorId":85018,"corporation":false,"usgs":true,"family":"McGree","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":456490,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Winkelman, D.L. 0000-0002-5247-0114","orcid":"https://orcid.org/0000-0002-5247-0114","contributorId":48739,"corporation":false,"usgs":true,"family":"Winkelman","given":"D.L.","affiliations":[],"preferred":false,"id":456488,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vieira, N.K.M.","contributorId":71034,"corporation":false,"usgs":true,"family":"Vieira","given":"N.K.M.","email":"","affiliations":[],"preferred":false,"id":456489,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vajda, A.M.","contributorId":35961,"corporation":false,"usgs":true,"family":"Vajda","given":"A.M.","affiliations":[],"preferred":false,"id":456487,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70036513,"text":"70036513 - 2010 - 3D volumetric modeling of grapevine biomass using Tripod LiDAR","interactions":[],"lastModifiedDate":"2018-09-19T08:55:11","indexId":"70036513","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1313,"text":"Computers and Electronics in Agriculture","active":true,"publicationSubtype":{"id":10}},"title":"3D volumetric modeling of grapevine biomass using Tripod LiDAR","docAbstract":"Tripod mounted laser scanning provides the means to generate high-resolution volumetric measures of vegetation structure and perennial woody tissue for the calculation of standing biomass in agronomic and natural ecosystems. Other than costly destructive harvest methods, no technique exists to rapidly and accurately measure above-ground perennial tissue for woody plants such as Vitis vinifera (common grape vine). Data collected from grapevine trunks and cordons were used to study the accuracy of wood volume derived from laser scanning as compared with volume derived from analog measurements. A set of 10 laser scan datasets were collected for each of 36 vines from which volume was calculated using combinations of two, three, four, six and 10 scans. Likewise, analog volume measurements were made by submerging the vine trunks and cordons in water and capturing the displaced water. A regression analysis examined the relationship between digital and non-digital techniques among the 36 vines and found that the standard error drops rapidly as additional scans are added to the volume calculation process and stabilizes at the four-view geometry with an average Pearson's product moment correlation coefficient of 0.93. Estimates of digital volumes are systematically greater than those of analog volumes and can be explained by the manner in which each technique interacts with the vine tissue. This laser scanning technique yields a highly linear relationship between vine volume and tissue mass revealing a new, rapid and non-destructive method to remotely measure standing biomass. This application shows promise for use in other ecosystems such as orchards and forests. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Computers and Electronics in Agriculture","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.compag.2010.09.005","issn":"01681699","usgsCitation":"Keightley, K., and Bawden, G., 2010, 3D volumetric modeling of grapevine biomass using Tripod LiDAR: Computers and Electronics in Agriculture, v. 74, no. 2, p. 305-312, https://doi.org/10.1016/j.compag.2010.09.005.","startPage":"305","endPage":"312","numberOfPages":"8","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":246264,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218268,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.compag.2010.09.005"}],"volume":"74","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e25ce4b0c8380cd45af8","contributors":{"authors":[{"text":"Keightley, K.E.","contributorId":57310,"corporation":false,"usgs":true,"family":"Keightley","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":456493,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bawden, G.W.","contributorId":61139,"corporation":false,"usgs":true,"family":"Bawden","given":"G.W.","email":"","affiliations":[],"preferred":false,"id":456494,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70036540,"text":"70036540 - 2010 - Sensitivity of early life stages of freshwater mussels (Unionidae) to acute and chronic toxicity of lead, cadmium, and zinc in water","interactions":[],"lastModifiedDate":"2018-10-20T10:04:56","indexId":"70036540","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Sensitivity of early life stages of freshwater mussels (Unionidae) to acute and chronic toxicity of lead, cadmium, and zinc in water","docAbstract":"<p><span>Toxicity of lead, cadmium, or zinc to early life stages of freshwater mussels (fatmucket,&nbsp;</span><i>Lampsilis siliquoidea</i><span>; Neosho mucket,&nbsp;</span><i>L. rafinesqueana</i><span>) was evaluated in 48‐h exposures with mussel larvae (glochidia), in 96‐h exposures with newly transformed (5‐d‐old) and two‐ or six‐month‐old juvenile mussels, or in 28‐d exposures with two‐ or four‐month‐old mussels in reconstituted soft water. The 24‐h median effect concentrations (EC50s) for fatmucket glochidia (&gt;299 µg Pb/L, &gt;227 µg Cd/L, 2,685 µg Zn/L) and 96‐h EC50s for two‐ or six‐month‐old fatmucket (&gt;426 µg Pb/L, 199 µg Cd/L, 1,700 µg Zn/L) were much higher than 96‐h EC50s for newly transformed fatmucket (142 and 298 µg Pb/L, 16 µg Cd/L, 151 and 175 µg Zn/L) and Neosho mucket (188 µg Pb/L, 20 µg Cd/L, 145 µg Zn/L). Chronic values for fatmucket were 10 µg Pb/L, 6.0 µg Cd/L, and 63 and 68 µg Zn/L. When mussel data from the present study and the literature were included in updated databases for deriving U.S. Environmental Protection Agency water quality criteria, mussel genus mean acute values were in the lower percentiles of the sensitivity distribution of all freshwater species for Pb (the 26th percentile), Cd (the 15th to 29th percentile), or Zn (the 12th to 21st percentile). The mussel (</span><i>Lampsilis</i><span>) genus mean chronic value was the lowest value ever reported for Pb (the 9th percentile) but was near the middle of the sensitivity distribution for Cd (the 61st percentile) or Zn (the 44th percentile). These results indicate that mussels were relatively sensitive to the acute toxicity of these three metals and to the chronic toxicity of Pb, but were moderately sensitive to the chronic toxicity of Cd or Zn compared to other freshwater species.</span></p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/etc.250","issn":"07307268","usgsCitation":"Wang, N., Ingersoll, C.G., Ivey, C.D., Hardesty, D., May, T.W., Augspurger, T., Roberts, A., Van Genderen, E., and Barnhart, M., 2010, Sensitivity of early life stages of freshwater mussels (Unionidae) to acute and chronic toxicity of lead, cadmium, and zinc in water: Environmental Toxicology and Chemistry, v. 29, no. 9, p. 2053-2063, https://doi.org/10.1002/etc.250.","productDescription":"11 p.","startPage":"2053","endPage":"2063","numberOfPages":"11","costCenters":[{"id":34983,"text":"Contaminant Biology Program","active":true,"usgs":true}],"links":[{"id":217496,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/etc.250"},{"id":245447,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"9","noUsgsAuthors":false,"publicationDate":"2010-09-01","publicationStatus":"PW","scienceBaseUri":"505b8d2de4b08c986b3182b5","contributors":{"authors":[{"text":"Wang, Ning 0000-0002-2846-3352 nwang@usgs.gov","orcid":"https://orcid.org/0000-0002-2846-3352","contributorId":2818,"corporation":false,"usgs":true,"family":"Wang","given":"Ning","email":"nwang@usgs.gov","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":456618,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ingersoll, Christopher G. 0000-0003-4531-5949 cingersoll@usgs.gov","orcid":"https://orcid.org/0000-0003-4531-5949","contributorId":2071,"corporation":false,"usgs":true,"family":"Ingersoll","given":"Christopher","email":"cingersoll@usgs.gov","middleInitial":"G.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":456616,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ivey, Chris D. 0000-0002-0485-7242 civey@usgs.gov","orcid":"https://orcid.org/0000-0002-0485-7242","contributorId":3308,"corporation":false,"usgs":true,"family":"Ivey","given":"Chris","email":"civey@usgs.gov","middleInitial":"D.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":456614,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hardesty, Douglas K. dhardesty@usgs.gov","contributorId":3281,"corporation":false,"usgs":true,"family":"Hardesty","given":"Douglas K.","email":"dhardesty@usgs.gov","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":456615,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"May, Thomas W. tmay@usgs.gov","contributorId":2598,"corporation":false,"usgs":true,"family":"May","given":"Thomas","email":"tmay@usgs.gov","middleInitial":"W.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":false,"id":456617,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Augspurger, T.","contributorId":81844,"corporation":false,"usgs":false,"family":"Augspurger","given":"T.","email":"","affiliations":[],"preferred":false,"id":456619,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Roberts, A.D.","contributorId":87757,"corporation":false,"usgs":true,"family":"Roberts","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":456620,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Van Genderen, E.","contributorId":17075,"corporation":false,"usgs":true,"family":"Van Genderen","given":"E.","affiliations":[],"preferred":false,"id":456613,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Barnhart, M.C.","contributorId":107410,"corporation":false,"usgs":true,"family":"Barnhart","given":"M.C.","affiliations":[],"preferred":false,"id":456621,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70037025,"text":"70037025 - 2010 - Linking ecosystems, food webs, and fish production: subsidies in salmonid watersheds","interactions":[],"lastModifiedDate":"2015-05-15T13:36:43","indexId":"70037025","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1657,"text":"Fisheries","onlineIssn":"1548-8446","printIssn":"0363-2415","active":true,"publicationSubtype":{"id":10}},"title":"Linking ecosystems, food webs, and fish production: subsidies in salmonid watersheds","docAbstract":"<p><span>Physical characteristics of riverine habitats, such as large wood abundance, pool geometry and abundance, riparian vegetation cover, and surface flow conditions, have traditionally been thought to constrain fish production in these ecosystems. Conversely, the role of food resources (quantity and quality) in controlling fish production has received far less attention and consideration, though they can also be key productivity drivers. Traditional freshwater food web illustrations have typically conveyed the notion that most fish food is produced within the local aquatic habitat itself, but the concepts and model we synthesize in this article show that most fish food comes from external or very distant sources&mdash;including subsidies from marine systems borne from adult returns of anadromous fishes, from fishless headwater tributaries that transport prey to downstream fish, and from adjacent streamside vegetation and associated habitats. The model we propose further illustrates how key trophic pathways and food sources vary through time and space throughout watersheds. Insights into how food supplies affect fishes can help guide how we view riverine ecosystems, their structure and function, their interactions with marine and terrestrial systems, and how we manage natural resources, including fish, riparian habitats, and forests.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8446-35.8.373","issn":"03632415","usgsCitation":"Wipfli, M.S., and Baxter, C., 2010, Linking ecosystems, food webs, and fish production: subsidies in salmonid watersheds: Fisheries, v. 35, no. 8, p. 373-387, https://doi.org/10.1577/1548-8446-35.8.373.","productDescription":"15 p.","startPage":"373","endPage":"387","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":217131,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/1548-8446-35.8.373"},{"id":245050,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"8","noUsgsAuthors":false,"publicationDate":"2010-08-01","publicationStatus":"PW","scienceBaseUri":"505a47d2e4b0c8380cd679da","contributors":{"authors":[{"text":"Wipfli, Mark S. 0000-0002-4856-6068 mwipfli@usgs.gov","orcid":"https://orcid.org/0000-0002-4856-6068","contributorId":1425,"corporation":false,"usgs":true,"family":"Wipfli","given":"Mark","email":"mwipfli@usgs.gov","middleInitial":"S.","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":true,"id":459029,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baxter, Colden V.","contributorId":47334,"corporation":false,"usgs":false,"family":"Baxter","given":"Colden V.","affiliations":[{"id":13656,"text":"Idaho State Univ.","active":true,"usgs":false}],"preferred":false,"id":459030,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70037028,"text":"70037028 - 2010 - Fate of trace organic compounds during vadose zone soil treatment in an onsite wastewater system","interactions":[],"lastModifiedDate":"2018-10-10T10:31:11","indexId":"70037028","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Fate of trace organic compounds during vadose zone soil treatment in an onsite wastewater system","docAbstract":"<p>During onsite wastewater treatment, trace organic compounds are often present in the effluents applied to subsurface soils for advanced treatment during vadose zone percolation and groundwater recharge. The fate of the endocrine-disrupting surfactant metabolites 4-nonylphenol (NP), 4-nonylphenolmonoethoxylate (NP1EO), and 4-nonylphenolmonoethoxycarboxylate (NP1EC), metal-chelating agents ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA), antimicrobial agent triclosan, stimulant caffeine, and antibiotic sulfamethoxazole during transport through an unsaturated sandy loam soil was studied at a field-scale test site. To assess the effects of effluent quality and hydraulic loading rate (HLR) on compound fate in the soil profile, two effluents (septic tank or textile biofilter) were applied at two design HLRs (2 or 8 cm/d). Chemical concentrations were determined in the two effluents and soil pore water at 60, 120, and 240 cm below the soil infiltrative surface. Concentrations of trace organic compounds in septic tank effluent were reduced by more than 90% during transport through 240 cm (often within 60 cm) of soil, likely due to sorption and biotransformation. However, the concentration of NP increased with depth in the shallow soil profile. Additional treatment of anaerobic septic tank effluent with an aerobic textile biofilter reduced effluent concentrations of many compounds, but generally did not affect any changes in pore water concentrations. The soil profile receiving septic tank effluent (vs. textile biofilter effluent) generally had greater percent removal efficiencies. EDTA, NP, NP1EC, and sulfamethoxazole were measured in soil pore water, indicating the ability of some trace organic compounds to reach shallow groundwater. Risk is highly dependent on the degree of further treatment in the saturated zone and the types and proximity of uses for the receiving groundwater environment.</p>","language":"English","publisher":"Society of Environmental Toxicology and Chemistry","doi":"10.1002/etc.40","issn":"07307268","usgsCitation":"Conn, K., Siegrist, R., Barber, L.B., and Meyer, M.T., 2010, Fate of trace organic compounds during vadose zone soil treatment in an onsite wastewater system: Environmental Toxicology and Chemistry, v. 29, no. 2, p. 285-293, https://doi.org/10.1002/etc.40.","productDescription":"9 p.","startPage":"285","endPage":"293","numberOfPages":"9","ipdsId":"IP-012835","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":487208,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/etc.40","text":"Publisher Index Page"},{"id":245109,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217187,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/etc.40"}],"volume":"29","issue":"2","noUsgsAuthors":false,"publicationDate":"2009-10-08","publicationStatus":"PW","scienceBaseUri":"505a0f14e4b0c8380cd53757","contributors":{"authors":[{"text":"Conn, K.E.","contributorId":64433,"corporation":false,"usgs":true,"family":"Conn","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":459040,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Siegrist, R.L.","contributorId":54005,"corporation":false,"usgs":true,"family":"Siegrist","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":459039,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barber, Larry B. 0000-0002-0561-0831 lbbarber@usgs.gov","orcid":"https://orcid.org/0000-0002-0561-0831","contributorId":921,"corporation":false,"usgs":true,"family":"Barber","given":"Larry","email":"lbbarber@usgs.gov","middleInitial":"B.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":459041,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meyer, Michael T. 0000-0001-6006-7985 mmeyer@usgs.gov","orcid":"https://orcid.org/0000-0001-6006-7985","contributorId":866,"corporation":false,"usgs":true,"family":"Meyer","given":"Michael","email":"mmeyer@usgs.gov","middleInitial":"T.","affiliations":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":459042,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037049,"text":"70037049 - 2010 - Development of a macrophyte-based index of biotic integrity for Minnesota lakes","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037049","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1456,"text":"Ecological Indicators","active":true,"publicationSubtype":{"id":10}},"title":"Development of a macrophyte-based index of biotic integrity for Minnesota lakes","docAbstract":"Traditional approaches for managing aquatic resources have often failed to account for effects of anthropogenic disturbances on biota that are not directly reflected by chemical and physical proxies of environmental condition. The index of biotic integrity (IBI) is a potentially effective assessment method to integrate ecological, functional, and structural aspects of aquatic systems. A macrophyte-based IBI was developed for Minnesota lakes to assess the ability of aquatic plant communities to indicate environmental condition. The index was developed using quantitative point intercept vegetation surveys for 97 lakes that represent a range of limnological and watershed characteristics. We followed an approach similar to that used in Wisconsin to develop the aquatic macrophyte community index (AMCI). Regional adaptation of the AMCI required the identification of species representative of macrophyte communities in Minnesota. Metrics and scaling methods were also substantially modified to produce a more empirically robust index. Regression analyses indicated that IBI scores reflected statewide differences in lake trophic state (R2 = 0.57, F = 130.3, df = 1, 95, p &lt; 0.005), agricultural (R2 = 0.51, F = 83.0, df = 1, 79, p &lt; 0.005), urban (R2 = 0.22, F = 23.0, df = 1, 79, p &lt; 0.005), and forested land uses (R2 = 0.51, F = 84.7, df = 1, 79, p &lt; 0.005), and county population density (R2 = 0.14, F = 16.6, df = 1, 95, p &lt; 0.005). Variance partitioning analyses using multiple regression models indicated a unique response of the IBI to human-induced stress separate from a response to natural lake characteristics. The IBI was minimally affected by differences in sample point density as indicated by Monte Carlo analyses of reduced sampling effort. Our analysis indicates that a macrophyte IBI calibrated for Minnesota lakes could be useful for identifying differences in environmental condition attributed to human-induced stress gradients. ?? 2010 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Indicators","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ecolind.2010.02.006","issn":"1470160X","usgsCitation":"Beck, M., Hatch, L., Vondracek, B., and Valley, R., 2010, Development of a macrophyte-based index of biotic integrity for Minnesota lakes: Ecological Indicators, v. 10, no. 5, p. 968-979, https://doi.org/10.1016/j.ecolind.2010.02.006.","startPage":"968","endPage":"979","numberOfPages":"12","costCenters":[],"links":[{"id":475924,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/11299/183538","text":"External Repository"},{"id":217043,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecolind.2010.02.006"},{"id":244954,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a003ce4b0c8380cd4f667","contributors":{"authors":[{"text":"Beck, M.W.","contributorId":48004,"corporation":false,"usgs":true,"family":"Beck","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":459149,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hatch, L.K.","contributorId":39615,"corporation":false,"usgs":true,"family":"Hatch","given":"L.K.","email":"","affiliations":[],"preferred":false,"id":459148,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vondracek, B.","contributorId":69930,"corporation":false,"usgs":true,"family":"Vondracek","given":"B.","affiliations":[],"preferred":false,"id":459150,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Valley, R.D.","contributorId":25798,"corporation":false,"usgs":true,"family":"Valley","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":459147,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037050,"text":"70037050 - 2010 - Sapflow and water use of freshwater wetland trees exposed to saltwater incursion in a tidally influenced South Carolina watershed","interactions":[],"lastModifiedDate":"2016-11-30T11:38:45","indexId":"70037050","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1170,"text":"Canadian Journal of Forest Research","active":true,"publicationSubtype":{"id":10}},"title":"Sapflow and water use of freshwater wetland trees exposed to saltwater incursion in a tidally influenced South Carolina watershed","docAbstract":"Sea-level rise and anthropogenic activity promote salinity incursion into many tidal freshwater forested wetlands. Interestingly, individual trees can persist for decades after salt impact. To understand why, we documented sapflow (J<sub>s</sub>), reduction in J<sub>s</sub> with sapwood depth, and water use (F) of baldcypress (Taxodium distichum (L.) Rich.) trees undergoing exposure to salinity. The mean J<sub>s</sub> of individual trees was reduced by 2.8 g H<sub>2</sub>O??m<sup>-2</sup>??s<sup>-1</sup> (or by 18%) in the outer sapwood on a saline site versus a freshwater site; however, the smallest trees, present only on the saline site, also registered the lowest J<sub>s</sub>. Hence, tree size significantly influenced the overall site effect on J<sub>s</sub>. Trees undergoing perennial exposure to salt used greater relative amounts of water in outer sapwood than in inner sapwood depths, which identifies a potentially different strategy for baldcypress trees coping with saline site conditions over decades. Overall, individual trees used 100 kg H<sub>2</sub>O??day<sup>-1</sup> on a site that remained relatively fresh versus 23.9 kg H<sub>2</sub>O??day<sup>-1</sup> on the saline site. We surmise that perennial salinization of coastal freshwater forests forces shifts in individual-tree osmotic balance and water-use strategy to extend survival time on suboptimal sites, which further influences growth and morphology.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Forest Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/x09-204","issn":"00455067","usgsCitation":"Krauss, K., and Duberstein, J., 2010, Sapflow and water use of freshwater wetland trees exposed to saltwater incursion in a tidally influenced South Carolina watershed: Canadian Journal of Forest Research, v. 40, no. 3, p. 525-535, https://doi.org/10.1139/x09-204.","startPage":"525","endPage":"535","numberOfPages":"11","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":244985,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217073,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/x09-204"}],"country":"United States","state":"South Carolina","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -79.2879867553711,\n              33.25246979589199\n            ],\n            [\n              -79.2879867553711,\n              33.40221152741838\n            ],\n            [\n              -79.1400146484375,\n              33.40221152741838\n            ],\n            [\n              -79.1400146484375,\n              33.25246979589199\n            ],\n            [\n              -79.2879867553711,\n              33.25246979589199\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"40","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b86bee4b08c986b3160e4","contributors":{"authors":[{"text":"Krauss, K. W. 0000-0003-2195-0729","orcid":"https://orcid.org/0000-0003-2195-0729","contributorId":19517,"corporation":false,"usgs":true,"family":"Krauss","given":"K. W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":459151,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Duberstein, J.A.","contributorId":44381,"corporation":false,"usgs":true,"family":"Duberstein","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":459152,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70037052,"text":"70037052 - 2010 - Reactive transport modeling to study changes in water chemistry induced by CO<sub>2</sub> injection at the Frio-I Brine Pilot","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037052","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Reactive transport modeling to study changes in water chemistry induced by CO<sub>2</sub> injection at the Frio-I Brine Pilot","docAbstract":"To demonstrate the potential for geologic storage of CO<sub>2</sub> in saline aquifers, the Frio-I Brine Pilot was conducted, during which 1600 tons of CO<sub>2</sub> were injected into a high-permeability sandstone and the resulting subsurface plume of CO<sub>2</sub> was monitored using a variety of hydrogeological, geophysical, and geochemical techniques. Fluid samples were obtained before CO<sub>2</sub> injection for baseline geochemical characterization, during the CO<sub>2</sub> injection to track its breakthrough at a nearby observation well, and after injection to investigate changes in fluid composition and potential leakage into an overlying zone. Following CO<sub>2</sub> breakthrough at the observation well, brine samples showed sharp drops in pH, pronounced increases in HCO<sub>3</sub><sup>-</sup> and aqueous Fe, and significant shifts in the isotopic compositions of H<sub>2</sub>O and dissolved inorganic carbon. Based on a calibrated 1-D radial flow model, reactive transport modeling was performed for the Frio-I Brine Pilot. A simple kinetic model of Fe release from the solid to aqueous phase was developed, which can reproduce the observed increases in aqueous Fe concentration. Brine samples collected after half a year had lower Fe concentrations due to carbonate precipitation, and this trend can be also captured by our modeling. The paper provides a method for estimating potential mobile Fe inventory, and its bounding concentration in the storage formation from limited observation data. Long-term simulations show that the CO<sub>2</sub> plume gradually spreads outward due to capillary forces, and the gas saturation gradually decreases due to its dissolution and precipitation of carbonates. The gas phase is predicted to disappear after 500 years. Elevated aqueous CO<sub>2</sub> concentrations remain for a longer time, but eventually decrease due to carbonate precipitation. For the Frio-I Brine Pilot, all injected CO<sub>2</sub> could ultimately be sequestered as carbonate minerals. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemgeo.2010.01.006","issn":"00092541","usgsCitation":"Xu, T., Kharaka, Y., Doughty, C., Freifeld, B., and Daley, T., 2010, Reactive transport modeling to study changes in water chemistry induced by CO<sub>2</sub> injection at the Frio-I Brine Pilot: Chemical Geology, v. 271, no. 3-4, p. 153-164, https://doi.org/10.1016/j.chemgeo.2010.01.006.","startPage":"153","endPage":"164","numberOfPages":"12","costCenters":[],"links":[{"id":475780,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.osti.gov/biblio/981745","text":"External Repository"},{"id":217101,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2010.01.006"},{"id":245018,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"271","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a958ae4b0c8380cd81aa8","contributors":{"authors":[{"text":"Xu, T.","contributorId":31236,"corporation":false,"usgs":true,"family":"Xu","given":"T.","email":"","affiliations":[],"preferred":false,"id":459159,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kharaka, Y.K.","contributorId":23568,"corporation":false,"usgs":true,"family":"Kharaka","given":"Y.K.","email":"","affiliations":[],"preferred":false,"id":459158,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Doughty, C.","contributorId":41202,"corporation":false,"usgs":true,"family":"Doughty","given":"C.","email":"","affiliations":[],"preferred":false,"id":459161,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Freifeld, B.M.","contributorId":21753,"corporation":false,"usgs":true,"family":"Freifeld","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":459157,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Daley, T.M.","contributorId":34708,"corporation":false,"usgs":true,"family":"Daley","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":459160,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
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