Nebraska's Rainwater Basin (RWB) is a key spring migration area for millions of waterfowl and other avian species. Avian cholera has been endemic in the RWB since the 1970s and in some years tens of thousands of waterfowl have died from the disease. We evaluated patterns of avian cholera mortality in waterfowl species using the RWB during the last quarter of the 20th century. Mortality patterns changed between the years before (1976 - 1988) and coincident with (1989 - 1999) the dramatic increases in lesser snow goose abundance and mortality. Lesser snow geese (Chen caerulescens caerulescens) have commonly been associated with mortality events in the RWB and are known to carry virulent strains of Pasteurella multocida, the agent causing avian cholera. Lesser snow geese appeared to be the species most affected by avian cholera during 1989 - 1999; however, mortality in several other waterfowl species was positively correlated with lesser snow goose mortality. Coincident with increased lesser snow goose mortality, spring avian cholera outbreaks were detected earlier and ended earlier compared to 1976 - 1988. Dense concentrations of lesser snow geese may facilitate intraspecific disease transmission through bird-to-bird contact and wetland contamination. Rates of interspecific avian cholera transmission within the waterfowl community, however, are difficult to determine.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Wildlife Diseases","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Blanchong, J.A., Samuel, M., and Mack, G., 2006, Multi-species patterns of avian cholera mortality in Nebraska's rainwater basin: Journal of Wildlife Diseases, v. 42, no. 1, p. 81-91.","productDescription":"p. 81-91","startPage":"81","endPage":"91","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":134220,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":14941,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://www.jwildlifedis.org/action/showMultipleAbstracts?mailPageTitle=Advanced+Search&href=&doi=10.7589%2F0090-3558-42.1.81","linkFileType":{"id":5,"text":"html"},"description":"1831.000000000000000"}],"country":"United States","state":"Nebraska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -104.1064453125,\n 43.0287452513488\n ],\n [\n -98.514404296875,\n 43.08493742707592\n ],\n [\n -97.987060546875,\n 42.85985981506279\n ],\n [\n -97.36083984375,\n 42.93229601903058\n ],\n [\n -96.690673828125,\n 42.779275360241904\n ],\n [\n -96.2841796875,\n 42.391008609205045\n ],\n [\n -96.13037109375,\n 42.10637370579324\n ],\n [\n -95.91064453125,\n 41.713930073371294\n ],\n [\n -95.811767578125,\n 41.35207214451295\n ],\n [\n -95.69091796875,\n 40.863679665481676\n ],\n [\n -95.504150390625,\n 40.38002840251183\n ],\n [\n -95.240478515625,\n 40.027614437486655\n ],\n [\n -95.3173828125,\n 39.93501296038254\n ],\n [\n -102.10693359375,\n 39.977120098439634\n ],\n [\n -102.095947265625,\n 40.94671366508002\n ],\n [\n -104.117431640625,\n 40.971603532799115\n ],\n [\n -104.1064453125,\n 43.0287452513488\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"42","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4849","contributors":{"authors":[{"text":"Blanchong, Julie A.","contributorId":6030,"corporation":false,"usgs":false,"family":"Blanchong","given":"Julie","email":"","middleInitial":"A.","affiliations":[{"id":13018,"text":"Department of Forest and Wildlife Ecology, University of Wisconsin, Madison","active":true,"usgs":false}],"preferred":false,"id":314793,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Samuel, M.D.","contributorId":13910,"corporation":false,"usgs":true,"family":"Samuel","given":"M.D.","affiliations":[],"preferred":false,"id":314794,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mack, G.","contributorId":71521,"corporation":false,"usgs":true,"family":"Mack","given":"G.","email":"","affiliations":[],"preferred":false,"id":314795,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":79778,"text":"tm10C4 - 2006 - Determination of the δ34S of Total Sulfur in Solids: RSIL Lab Code 1800","interactions":[],"lastModifiedDate":"2013-02-11T10:47:35","indexId":"tm10C4","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":335,"text":"Techniques and Methods","code":"TM","onlineIssn":"2328-7055","printIssn":"2328-7047","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"10-C4","title":"Determination of the δ34S of Total Sulfur in Solids: RSIL Lab Code 1800","docAbstract":"The purpose of Reston Stable Isotope Laboratory Lab (RSIL) Code 1800 is to determine the δ(34S/32S), abbreviated as δ34S, of total sulfur in a solid sample. A Carlo Erba NC 2500 elemental analyzer (EA) is used to convert total sulfur in a solid sample into SO2 gas. The EA is connected to a continuous flow isotope-ratio mass spectrometer (CF-IRMS), which determines the relative difference in stable sulfur isotope-amount ratio (34S/32S) of the product SO2 gas. The combustion is quantitative; no isotopic fractionation is involved. Samples are placed in tin capsules and loaded into a Costech Zero-Blank Autosampler on the EA. Under computer control, samples are dropped into a heated tube reaction tube that combines both the oxidation and the reduction reactions. The combustion takes place in a He atmosphere that contains an excess of oxygen gas at the oxidation zone at the top of the reaction tube. Combustion products are transported by a He carrier through the reduction zone at the bottom of the reaction tube to remove excess oxygen and through a separate drying tube to remove any water. The gas-phase products, mainly CO2, N2, and SO2, are separated by a gas chromatograph (GC). The gas is then introduced into the isotope-ratio mass spectrometer (IRMS) through a Thermo-Finnigan ConFlo II interface, which also is used to inject SO2 reference gas and He for sample dilution. The IRMS is a Thermo-Finnigan DeltaPlus CF-IRMS. It has a universal triple collector with two wide cups and a narrow cup in the middle. It is capable of measuring mass/charge (m/z) 64 and 66 simultaneously. The ion beams from SO2 are as follows: m/z 64 = SO2 = 32S16O16O; and m/z 66 = SO2 = 34S16O16O primarily.","language":"ENGLISH","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/tm10C4","usgsCitation":"Revesz, K., and Coplen, T.B., 2006, Determination of the δ34S of Total Sulfur in Solids: RSIL Lab Code 1800 (Version 1.2, August 2012 (Version 1.1 2007)): U.S. Geological Survey Techniques and Methods 10-C4, viii, 31 p.; ill.; Appendices, https://doi.org/10.3133/tm10C4.","productDescription":"viii, 31 p.; ill.; Appendices","costCenters":[{"id":543,"text":"Reston Stable Isotope Laboratory","active":false,"usgs":true}],"links":[{"id":190777,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/tm_10_C4.gif"},{"id":9466,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/tm/10c4/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.2, August 2012 (Version 1.1 2007)","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db66759b","contributors":{"authors":[{"text":"Revesz, Kinga","contributorId":64285,"corporation":false,"usgs":true,"family":"Revesz","given":"Kinga","affiliations":[],"preferred":false,"id":290815,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coplen, Tyler B. 0000-0003-4884-6008 tbcoplen@usgs.gov","orcid":"https://orcid.org/0000-0003-4884-6008","contributorId":508,"corporation":false,"usgs":true,"family":"Coplen","given":"Tyler","email":"tbcoplen@usgs.gov","middleInitial":"B.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":290814,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1001072,"text":"1001072 - 2006 - Modeling wetland plant community response to assess water-level regulation scenarios in the Lake Ontario-St. Lawrence River basin","interactions":[],"lastModifiedDate":"2016-05-09T10:45:38","indexId":"1001072","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Modeling wetland plant community response to assess water-level regulation scenarios in the Lake Ontario-St. Lawrence River basin","docAbstract":"The International Joint Commission has recently completed a five-year study (2000-2005) to review the operation of structures controlling the flows and levels of the Lake Ontario - St. Lawrence River system. In addition to addressing the multitude of stakeholder interests, the regulation plan review also considers environmental sustainability and integrity of wetlands and various ecosystem components. The present paper outlines the general approach, scientific methodology and applied management considerations of studies quantifying the relationships between hydrology and wetland plant assemblages (% occurrence, surface area) in Lake Ontario and the Upper and Lower St. Lawrence River. Although similar study designs were used across the study region, different methodologies were required that were specifically adapted to suit the important regional differences between the lake and river systems, range in water-level variations, and confounding factors (geomorphic types, exposure, sediment characteristics, downstream gradient of water quality, origin of water masses in the Lower River). Performance indicators (metrics), such as total area of wetland in meadow marsh vegetation type, that link wetland response to water levels will be used to assess the effects of different regulation plans under current and future (climate change) water-supply scenarios.
","language":"English","publisher":"Springer","doi":"10.1007/s10661-005-9086-4","usgsCitation":"Hudon, C., Wilcox, D., and Ingram, J., 2006, Modeling wetland plant community response to assess water-level regulation scenarios in the Lake Ontario-St. Lawrence River basin: Environmental Monitoring and Assessment, v. 113, no. 1-3, p. 303-328, https://doi.org/10.1007/s10661-005-9086-4.","productDescription":"26 p.","startPage":"303","endPage":"328","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":477564,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/20.500.12648/2305","text":"External Repository"},{"id":133564,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"1-3","noUsgsAuthors":false,"publicationDate":"2006-02-24","publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db69976f","contributors":{"authors":[{"text":"Hudon, Christiane","contributorId":80632,"corporation":false,"usgs":true,"family":"Hudon","given":"Christiane","email":"","affiliations":[],"preferred":false,"id":310395,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilcox, Douglas","contributorId":72764,"corporation":false,"usgs":true,"family":"Wilcox","given":"Douglas","affiliations":[],"preferred":false,"id":310394,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ingram, Joel","contributorId":65046,"corporation":false,"usgs":true,"family":"Ingram","given":"Joel","affiliations":[],"preferred":false,"id":310393,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70030744,"text":"70030744 - 2006 - A rainfall loading response recorded at 300 meters depth: Implications for geological weighing lysimeters","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70030744","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"A rainfall loading response recorded at 300 meters depth: Implications for geological weighing lysimeters","docAbstract":"Static pore water pressures in confined aquifers vary in response to ground surface loading changes, including precipitation and evaporation. Under certain hydrogeological conditions such aquifers can function as giant natural weighing lysimeters, referenced here as 'geological weighing lysimeters'. The extent of the land area 'weighed' increases with aquifer depth and it is of interest to establish at what depth it is still possible to monitor surface water budgets. An 86 mm rainfall event produced a clear loading signal in a well in western Kansas at 300 m depth. The loading effect is quantitatively consistent with elastic deformation induced by the rainfall mass and suggests that geological weighing lysimeters could operate at considerably greater depths, thereby monitoring water budgets over a significant land area. ?? 2005 Elsevier Ltd All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2005.06.031","issn":"00221694","usgsCitation":"Sophocleous, M., Bardsley, E., and Healey, J., 2006, A rainfall loading response recorded at 300 meters depth: Implications for geological weighing lysimeters: Journal of Hydrology, v. 319, no. 1-4, p. 237-244, https://doi.org/10.1016/j.jhydrol.2005.06.031.","startPage":"237","endPage":"244","numberOfPages":"8","costCenters":[],"links":[{"id":477707,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/10289/3932","text":"External Repository"},{"id":238886,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211578,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2005.06.031"}],"volume":"319","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e529e4b0c8380cd46b8a","contributors":{"authors":[{"text":"Sophocleous, M.","contributorId":13373,"corporation":false,"usgs":true,"family":"Sophocleous","given":"M.","email":"","affiliations":[],"preferred":false,"id":428489,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bardsley, E.","contributorId":26875,"corporation":false,"usgs":true,"family":"Bardsley","given":"E.","email":"","affiliations":[],"preferred":false,"id":428490,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Healey, J.","contributorId":60852,"corporation":false,"usgs":true,"family":"Healey","given":"J.","email":"","affiliations":[],"preferred":false,"id":428491,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1008621,"text":"1008621 - 2006 - Evaluating plant invasions from both habitat and species perspectives","interactions":[],"lastModifiedDate":"2024-04-25T15:57:02.270362","indexId":"1008621","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3746,"text":"Western North American Naturalist","onlineIssn":"1944-8341","printIssn":"1527-0904","active":true,"publicationSubtype":{"id":10}},"title":"Evaluating plant invasions from both habitat and species perspectives","docAbstract":"We present an approach to quantitatively assess nonnative plant invasions at landscape scales from both habitat and species perspectives. Our case study included 34 nonnative species found in 142 plots (0.1 ha) in 14 vegetation types within the Grand Staircase–Escalante National Monument, Utah. A plot invasion index, based on nonnative species richness and cover, showed that only 16 of 142 plots were heavily invaded. A species invasive index, based on frequency, cover, and number of vegetation types invaded, showed that only 7 of 34 plant species were highly invasive. Multiple regressions using habitat characteristics (moisture index, elevation, soil P, native species richness, maximum crust development class, bare ground, and rock) explained 60% of variation in nonnative species richness and 46% of variation in nonnative species cover. Three mesic habitats (aspen, wet meadow, and perennial riparian types) were particularly invaded (31 of 34 nonnative species studied were found in these types). Species-specific logistic regression models for the 7 most invasive species correctly predicted occurrence 89% of the time on average (from 80% for Bromus tectorum, a habitat generalist, to 93% for Tamarix spp., a habitat specialist). Even with such a modest sampling intensity (<0.1% of the landscape), this multiscale sampling scheme was effective at evaluating habitat vulnerability to invasion and the occurrence of the 7 most invasive nonnative species. This approach could be applied in other natural areas to develop strategies to document invasive species and invaded habitats.
","language":"English","publisher":"Monte L. Bean Life Science Museum","doi":"10.3398/1527-0904(2006)66[92:EPIFBH]2.0.CO;2","usgsCitation":"Chong, G., Otsuki, Y., Stohlgren, T., Guenther, D., Evangelista, P., Villa, C., and Waters, M., 2006, Evaluating plant invasions from both habitat and species perspectives: Western North American Naturalist, v. 66, no. 1, p. 92-105, https://doi.org/10.3398/1527-0904(2006)66[92:EPIFBH]2.0.CO;2.","productDescription":"14 p.","startPage":"92","endPage":"105","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":487341,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://scholarsarchive.byu.edu/wnan/vol66/iss1/8","text":"External Repository"},{"id":428111,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Utah","otherGeospatial":"Grand Staircase–Escalante National Monument","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.91085815429688,\n 37.00035919622158\n ],\n [\n -111.91085815429688,\n 37.327580637137665\n ],\n [\n -111.41372680664061,\n 37.327580637137665\n ],\n [\n -111.41372680664061,\n 37.00035919622158\n ],\n [\n -111.91085815429688,\n 37.00035919622158\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"66","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fb10a","contributors":{"authors":[{"text":"Chong, G.W.","contributorId":54153,"corporation":false,"usgs":true,"family":"Chong","given":"G.W.","email":"","affiliations":[],"preferred":false,"id":318269,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Otsuki, Yuka","contributorId":23107,"corporation":false,"usgs":false,"family":"Otsuki","given":"Yuka","email":"","affiliations":[],"preferred":false,"id":318268,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stohlgren, T.J.","contributorId":7217,"corporation":false,"usgs":true,"family":"Stohlgren","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":318265,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Guenther, D.","contributorId":21902,"corporation":false,"usgs":true,"family":"Guenther","given":"D.","email":"","affiliations":[],"preferred":false,"id":318266,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Evangelista, P.","contributorId":21903,"corporation":false,"usgs":true,"family":"Evangelista","given":"P.","email":"","affiliations":[],"preferred":false,"id":318267,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Villa, C.","contributorId":6407,"corporation":false,"usgs":true,"family":"Villa","given":"C.","email":"","affiliations":[],"preferred":false,"id":318264,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Waters, M.A.","contributorId":102032,"corporation":false,"usgs":true,"family":"Waters","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":318270,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70030668,"text":"70030668 - 2006 - Daily energy expenditure in free-ranging Gopher Tortoises (Gopherus polyphemus)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:00","indexId":"70030668","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1337,"text":"Copeia","active":true,"publicationSubtype":{"id":10}},"title":"Daily energy expenditure in free-ranging Gopher Tortoises (Gopherus polyphemus)","docAbstract":"Studies of ecological energetics in chelonians are rare. Here, we report the first measurements of daily energy expenditure (DEE) and water influx rates (WIRs) in free-ranging adult Gopher Tortoises (Gopherus polyphemus). We used the doubly labeled water (DLW) method to measure DEE in six adult tortoises during the non-breeding season in south-central Mississippi, USA. Tortoise DEE ranged from 76.7-187.5 kj/day and WIR ranged from 30.6-93.1 ml H2O/day. Daily energy expenditure did not differ between the sexes, but DEE was positively related to body mass. Water influx rates varied with the interaction of sex and body mass. We used a log/log regression model to assess the allometric relationship between DEE and body mass for Gopher Tortoises, Desert Tortoises (Gopherus agassizii), and Box Turtles (Terrapene carolina), the only chelonians for which DEE has been measured. The slope of this allometric model (0.626) was less than that previously calculated for herbivorous reptiles (0.813), suggesting that chelonians may expend energy at a slower rate per unit of body mass compared to other herbivorous reptiles. We used retrospective power analyses and data from the DLW isotope analyses to develop guidelines for sample sizes and duration of measurement intervals, respectively, for larger-scale energetic studies in this species. ?? 2006 by the American Society of Ichthyologists and Herpetologists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Copeia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1643/0045-8511(2006)006[0129:DEEIFG]2.0.CO;2","issn":"00458511","usgsCitation":"Jodice, P., Epperson, D., and Visser, G.H., 2006, Daily energy expenditure in free-ranging Gopher Tortoises (Gopherus polyphemus): Copeia, no. 1, p. 129-136, https://doi.org/10.1643/0045-8511(2006)006[0129:DEEIFG]2.0.CO;2.","startPage":"129","endPage":"136","numberOfPages":"8","costCenters":[],"links":[{"id":211936,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1643/0045-8511(2006)006[0129:DEEIFG]2.0.CO;2"},{"id":239321,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fd59e4b0c8380cd4e7bd","contributors":{"authors":[{"text":"Jodice, P.G.R.","contributorId":79846,"corporation":false,"usgs":true,"family":"Jodice","given":"P.G.R.","email":"","affiliations":[],"preferred":false,"id":428132,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Epperson, D.M. 0000-0002-0567-4915","orcid":"https://orcid.org/0000-0002-0567-4915","contributorId":95246,"corporation":false,"usgs":true,"family":"Epperson","given":"D.M.","affiliations":[],"preferred":false,"id":428133,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Visser, G. Henk","contributorId":105497,"corporation":false,"usgs":false,"family":"Visser","given":"G.","email":"","middleInitial":"Henk","affiliations":[],"preferred":false,"id":428134,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1001073,"text":"1001073 - 2006 - Predicting crappie recruitment in Ohio reservoirs with spawning stock size, larval density, and chlorophyll concentrations","interactions":[],"lastModifiedDate":"2012-02-02T00:04:44","indexId":"1001073","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Predicting crappie recruitment in Ohio reservoirs with spawning stock size, larval density, and chlorophyll concentrations","docAbstract":"Stock-recruit models typically use only spawning stock size as a predictor of recruitment to a fishery. In this paper, however, we used spawning stock size as well as larval density and key environmental variables to predict recruitment of white crappies Pomoxis annularis and black crappies P. nigromaculatus, a genus notorious for variable recruitment. We sampled adults and recruits from 11 Ohio reservoirs and larvae from 9 reservoirs during 1998-2001. We sampled chlorophyll as an index of reservoir productivity and obtained daily estimates of water elevation to determine the impact of hydrology on recruitment. Akaike's information criterion (AIC) revealed that Ricker and Beverton-Holt stock-recruit models that included chlorophyll best explained the variation in larval density and age-2 recruits. Specifically, spawning stock catch per effort (CPE) and chlorophyll explained 63-64% of the variation in larval density. In turn, larval density and chlorophyll explained 43-49% of the variation in age-2 recruit CPE. Finally, spawning stock CPE and chlorophyll were the best predictors of recruit CPE (i.e., 74-86%). Although larval density and recruitment increased with chlorophyll, neither was related to seasonal water elevation. Also, the AIC generally did not distinguish between Ricker and Beverton-Holt models. From these relationships, we concluded that crappie recruitment can be limited by spawning stock CPE and larval production when spawning stock sizes are low (i.e., CPE , 5 crappies/net-night). At higher levels of spawning stock sizes, spawning stock CPE and recruitment were less clearly related. To predict recruitment in Ohio reservoirs, managers should assess spawning stock CPE with trap nets and estimate chlorophyll concentrations. To increase crappie recruitment in reservoirs where recruitment is consistently poor, managers should use regulations to increase spawning stock size, which, in turn, should increase larval production and recruits to the fishery.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Bunnell, D., Hale, R.S., Vanni, M., and Stein, R., 2006, Predicting crappie recruitment in Ohio reservoirs with spawning stock size, larval density, and chlorophyll concentrations: North American Journal of Fisheries Management, v. 26, no. 1, p. 1-12.","productDescription":"p. 1-12","startPage":"1","endPage":"12","numberOfPages":"11","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133662,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66cae6","contributors":{"authors":[{"text":"Bunnell, David B.","contributorId":14360,"corporation":false,"usgs":true,"family":"Bunnell","given":"David B.","affiliations":[],"preferred":false,"id":310396,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hale, R. Scott","contributorId":104868,"corporation":false,"usgs":true,"family":"Hale","given":"R.","email":"","middleInitial":"Scott","affiliations":[],"preferred":false,"id":310399,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vanni, Michael J.","contributorId":49756,"corporation":false,"usgs":true,"family":"Vanni","given":"Michael J.","affiliations":[],"preferred":false,"id":310398,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stein, Roy A.","contributorId":21494,"corporation":false,"usgs":true,"family":"Stein","given":"Roy A.","affiliations":[],"preferred":false,"id":310397,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1001078,"text":"1001078 - 2006 - Recruitment of Hexagenia mayfly nymphs in western Lake Erie linked to environmental variability","interactions":[],"lastModifiedDate":"2016-05-09T09:35:33","indexId":"1001078","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Recruitment of Hexagenia mayfly nymphs in western Lake Erie linked to environmental variability","docAbstract":"After a 40-year absence caused by pollution and eutrophication, burrowing mayflies (Hexagenia spp.) recolonized western Lake Erie in the mid 1990s as water quality improved. Mayflies are an important food resource for the economically valuable yellow perch fishery and are considered to be major indicator species of the ecological condition of the lake. Since their reappearance, however, mayfly populations have suffered occasional unexplained recruitment failures. In 2002, a failure of fall recruitment followed an unusually warm summer in which western Lake Erie became temporarily stratified, resulting in low dissolved oxygen levels near the lake floor. In the present study, we examined a possible link between Hexagenia recruitment and periods of intermittent stratification for the years 1997-2002. A simple model was developed using surface temperature, wind speed, and water column data from 2003 to predict stratification. The model was then used to detect episodes of stratification in past years for which water column data are unavailable. Low or undetectable mayfly recruitment occurred in 1997 and 2002, years in which there was frequent or extended stratification between June and September. Highest mayfly reproduction in 2000 corresponded to the fewest stratified periods. These results suggest that even relatively brief periods of stratification can result in loss of larval mayfly recruitment, probably through the effects of hypoxia. A trend toward increasing frequency of hot summers in the Great Lakes region could result in recurrent loss of mayfly larvae in western Lake Erie and other shallow areas in the Great Lakes.
","language":"English","publisher":"Wiley","doi":"10.1890/1051-0761(2006)016[0601:ROHMNI]2.0.CO;2","usgsCitation":"Bridgeman, T., Schloesser, D.W., and Krause, A.E., 2006, Recruitment of Hexagenia mayfly nymphs in western Lake Erie linked to environmental variability: Ecological Applications, v. 16, no. 2, p. 601-611, https://doi.org/10.1890/1051-0761(2006)016[0601:ROHMNI]2.0.CO;2.","productDescription":"11 p.","startPage":"601","endPage":"611","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":128619,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afce4b07f02db6966ec","contributors":{"authors":[{"text":"Bridgeman, Thomas B.","contributorId":27394,"corporation":false,"usgs":true,"family":"Bridgeman","given":"Thomas B.","affiliations":[],"preferred":false,"id":310414,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schloesser, Don W.","contributorId":21485,"corporation":false,"usgs":true,"family":"Schloesser","given":"Don","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":310413,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Krause, Ann E.","contributorId":9201,"corporation":false,"usgs":true,"family":"Krause","given":"Ann","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":310412,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028110,"text":"70028110 - 2006 - Larval exposure to environmentally relevant mixtures of alkylphenolethoxylates reduces reproductive competence in male fathead minnows","interactions":[],"lastModifiedDate":"2018-10-29T10:06:12","indexId":"70028110","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":874,"text":"Aquatic Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Larval exposure to environmentally relevant mixtures of alkylphenolethoxylates reduces reproductive competence in male fathead minnows","docAbstract":"The ubiquitous presence of nonylphenolethoxylate/octylphenolethoxylate (NPE/OPE) compounds in aquatic environments adjacent to wastewater treatment plants (WWTP) warrants an assessment of the endocrine disrupting potential of these complex mixtures on aquatic vertebrates. In this study, fathead minnow larvae were exposed for 64 days to a mixture of NPE/OPE, which closely models the NPE/OPE composition of a major metropolitan WWTP effluent. Target exposure concentrations included a total NPE/OPE mixture load of 200% of the WWTP effluent concentration (148 μg/L), 100% of the WWTP effluent concentration (74 μg/L) and 50% of the WWTP effluent concentration (38 μg/L). The NPE/OPE mixture contained 0.2% 4-t-octylphenol, 2.8% 4-nonylphenol, 5.1% 4-nonylphenolmonoethoxylate, 9.3% 4-nonylphenoldiethoxylate, 0.9% 4-t-octylphenolmonoethoxylate, 3.1% 4-t-octylphenoldiethoxylate, 33.8% 4-nonylphenolmonoethoxycarboxylate, and 44.8% 4-nonylphenoldiethoxycarboxylate. An additional exposure of 5 μg/L 4-nonylphenol (nominal) was conducted. The exposure utilized a flow-through system supplied by ground water and designed to deliver consistent concentrations of applied chemicals. Following exposure, larvae were raised to maturity. Upon sexual maturation, exposed male fish were allowed to compete with control males in a competitive spawning assay. Nest holding ability of control and exposed fish was carefully monitored for 7 days. All male fish were then sacrificed and analyzed for plasma vitellogenin, developmental changes in gonadal tissues, alterations in the development of secondary sexual characters, morphometric changes, and changes to reproductive behavior. When exposed to the 200% NPE/OPE treatment most larvae died within the first 4 weeks of exposure. Both the 100% and 50% NPE/OPE exposures caused a significant decrease in reproductive behavior, as indicated by an inability of many of the previously exposed males to acquire and hold a nest site required for reproduction. In contrast, the 5 μg/L 4-nonylphenol exposure resulted in significantly enhanced reproductive behavior compared to that of control males and a majority of the nesting sites were held by previously exposed males. No significant change in the development of gonadal tissues was observed. The 100% NPE/OPE exposure resulted in a significant reduction in the gonadal somatic index and in the prominence of secondary sexual characteristics of exposed larvae. This study indicates that NPE/OPE mixtures have an effect on the reproductive competence of previously exposed male fathead minnows. In addition, 4-nonylphenol concentrations utilized in all exposures were below regulatory guidelines, suggesting that evaluation of 4-nonylphenol alone may not be sufficient for identifying potentially adverse effects of this suite of compounds usually found as mixtures in the aquatic environment.
We present a method for determining streambed seepage rates using time series thermal data. The new method is based on quantifying changes in phase and amplitude of temperature variations between pairs of subsurface sensors. For a reasonable range of streambed thermal properties and sensor spacings the time series method should allow reliable estimation of seepage rates for a range of at least ±10 m d−1 (±1.2 × 10−2 m s−1), with amplitude variations being most sensitive at low flow rates and phase variations retaining sensitivity out to much higher rates. Compared to forward modeling, the new method requires less observational data and less setup and data handling and is faster, particularly when interpreting many long data sets. The time series method is insensitive to streambed scour and sedimentation, which allows for application under a wide range of flow conditions and allows time series estimation of variable streambed hydraulic conductivity. This new approach should facilitate wider use of thermal methods and improve understanding of the complex spatial and temporal dynamics of surface water–groundwater interactions.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2005WR004787","usgsCitation":"Hatch, C.E., Fisher, A.T., Revenaugh, J.S., Constantz, J., and Ruehl, C., 2006, Quantifying surface water–groundwater interactions using time series analysis of streambed thermal records: Method development: Water Resources Research, v. 42, no. 10, Article W10410; 14 p., https://doi.org/10.1029/2005WR004787.","productDescription":"Article W10410; 14 p.","costCenters":[],"links":[{"id":477544,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2005wr004787","text":"Publisher Index Page"},{"id":237245,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"10","noUsgsAuthors":false,"publicationDate":"2006-10-11","publicationStatus":"PW","scienceBaseUri":"505a91e1e4b0c8380cd80508","contributors":{"authors":[{"text":"Hatch, Christine E","contributorId":191364,"corporation":false,"usgs":false,"family":"Hatch","given":"Christine","email":"","middleInitial":"E","affiliations":[],"preferred":false,"id":417932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fisher, Andrew T.","contributorId":178403,"corporation":false,"usgs":false,"family":"Fisher","given":"Andrew","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":417935,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Revenaugh, Justin S.","contributorId":22566,"corporation":false,"usgs":false,"family":"Revenaugh","given":"Justin","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":417933,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Constantz, Jim","contributorId":66338,"corporation":false,"usgs":true,"family":"Constantz","given":"Jim","affiliations":[],"preferred":false,"id":417934,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ruehl, Chris","contributorId":181877,"corporation":false,"usgs":false,"family":"Ruehl","given":"Chris","email":"","affiliations":[],"preferred":false,"id":417936,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70028951,"text":"70028951 - 2006 - Diatom diversity in chronically versus episodically acidified adirondack streams","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028951","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2088,"text":"International Review of Hydrobiology","active":true,"publicationSubtype":{"id":10}},"title":"Diatom diversity in chronically versus episodically acidified adirondack streams","docAbstract":"The relationship between algal species richness and diversity, and pH is controversial. Furthermore, it is still unknown how episodic stream acidification following atmospheric deposition affects species richness and diversity. Here we analyzed water chemistry and diatom epiphyton dynamics and showed their contrasting behavior in chronically vs. episodically acidic streams in the Adirondack region. Species richness and diversity were significantly higher in the chronically acidic brown water stream, where organic acidity was significantly higher and the ratio of inorganic to organic monomeric aluminum significantly lower. Conversely, in the episodically acidic clear water stream, the inorganic acidity and pH were significantly higher and the diatom communities were very species-poor. This suggests that episodic acidification in the Adirondacks may be more stressful for stream biota than chronic acidity. Strong negative linear relationships between species diversity, Eunotia exigua, and dissolved organic carbon against pH were revealed after the influence of non-linear temporal trends was partialled out using a novel way of temporal modeling. ?? 2006 WILEY-VCH Verlag GmbH & Co. KGaA.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Review of Hydrobiology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/iroh.200610913","issn":"14342944","usgsCitation":"Passy, S., Ciugulea, I., and Lawrence, G., 2006, Diatom diversity in chronically versus episodically acidified adirondack streams: International Review of Hydrobiology, v. 91, no. 6, p. 594-608, https://doi.org/10.1002/iroh.200610913.","startPage":"594","endPage":"608","numberOfPages":"15","costCenters":[],"links":[{"id":209779,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/iroh.200610913"},{"id":236489,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"91","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a00abe4b0c8380cd4f853","contributors":{"authors":[{"text":"Passy, S.I.","contributorId":50324,"corporation":false,"usgs":true,"family":"Passy","given":"S.I.","email":"","affiliations":[],"preferred":false,"id":420690,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ciugulea, I.","contributorId":58829,"corporation":false,"usgs":true,"family":"Ciugulea","given":"I.","email":"","affiliations":[],"preferred":false,"id":420691,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lawrence, G.B. 0000-0002-8035-2350","orcid":"https://orcid.org/0000-0002-8035-2350","contributorId":76347,"corporation":false,"usgs":true,"family":"Lawrence","given":"G.B.","affiliations":[],"preferred":false,"id":420692,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028406,"text":"70028406 - 2006 - Comparative evaluation of short-term leach tests for heavy metal release from mineral processing waste","interactions":[],"lastModifiedDate":"2012-03-12T17:20:54","indexId":"70028406","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Comparative evaluation of short-term leach tests for heavy metal release from mineral processing waste","docAbstract":"Evaluation of metal leaching using a single leach test such as the Toxicity Characteristic Leaching Procedure (TCLP) is often questionable. The pH, redox potential (Eh), particle size and contact time are critical variables in controlling metal stability, not accounted for in the TCLP. This paper compares the leaching behavior of metals in mineral processing waste via short-term extraction tests such as TCLP, Field Leach Test (FLT) used by USGS and deionized water extraction tests. Variation in the extracted amounts was attributed to the use of different particle sizes, extraction fluid and contact time. In the controlled pH experiments, maximum metal extraction was obtained at acidic pH for cationic heavy metals such as Cu, Pb and Zn, while desorption of Se from the waste resulted in high extract concentrations in the alkaline region. Precipitation of iron, caused by a pH increase, probably resulted in co-precipitation and immobilization of Cu, Pb and Zn in the alkaline pH region. A sequential extraction procedure was performed on the original waste and the solid residue from the Eh-pH experiments to determine the chemical speciation and distribution of the heavy metals. In the as-received waste, Cu existed predominantly in water soluble or sulfidic phases, with no binding to carbonates or iron oxides. Similar characteristics were observed for Pb and Zn, while Se existed mostly associated with iron oxides or sulfides. Adsorption/co-precipitation of Cu, Se and Pb on precipitated iron hydroxides was observed in the experimental solid residues, resulting in metal immobilization above pH 7.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science of the Total Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.scitotenv.2005.10.021","issn":"00489697","usgsCitation":"Al-Abed, S.R., Hageman, P., Jegadeesan, G., Madhavan, N., and Allen, D., 2006, Comparative evaluation of short-term leach tests for heavy metal release from mineral processing waste: Science of the Total Environment, v. 364, no. 1-3, p. 14-23, https://doi.org/10.1016/j.scitotenv.2005.10.021.","startPage":"14","endPage":"23","numberOfPages":"10","costCenters":[],"links":[{"id":210322,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2005.10.021"},{"id":237208,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"364","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f81ae4b0c8380cd4ce9c","contributors":{"authors":[{"text":"Al-Abed, S. R.","contributorId":57256,"corporation":false,"usgs":true,"family":"Al-Abed","given":"S.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":417927,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hageman, P. L. 0000-0002-3440-2150","orcid":"https://orcid.org/0000-0002-3440-2150","contributorId":27459,"corporation":false,"usgs":true,"family":"Hageman","given":"P. L.","affiliations":[],"preferred":false,"id":417924,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jegadeesan, G.","contributorId":28054,"corporation":false,"usgs":true,"family":"Jegadeesan","given":"G.","email":"","affiliations":[],"preferred":false,"id":417925,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Madhavan, N.","contributorId":47964,"corporation":false,"usgs":true,"family":"Madhavan","given":"N.","email":"","affiliations":[],"preferred":false,"id":417926,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Allen, D.","contributorId":86955,"corporation":false,"usgs":true,"family":"Allen","given":"D.","email":"","affiliations":[],"preferred":false,"id":417928,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70028404,"text":"70028404 - 2006 - Deep-water antipatharians: Proxies of environmental change","interactions":[],"lastModifiedDate":"2012-03-12T17:20:54","indexId":"70028404","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Deep-water antipatharians: Proxies of environmental change","docAbstract":"Deep-water (307-697 m) antipatharian (black coral) specimens were collected from the southeastern continental slope of the United States and the north-central Gulf of Mexico. The sclerochronology of the specimens indicates that skeletal growth takes place by formation of concentric coeval layers. We used 210Pb to estimate radial growth rate of two specimens, and to establish that they were several centuries old. Bands were delaminated in KOH and analyzed for carbon and nitrogen stable isotopes. Carbon values ranged from -16.4??? to -15.7???; oldest specimen displayed the largest range in values. Nitrogen values ranged from 7.7??? to 8.6???. Two specimens from the same location and depth had similar 15N signatures, indicating good reproducibility between specimens. ?? 2006 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/G22685.1","issn":"00917613","usgsCitation":"Williams, B., Risk, M.J., Ross, S.W., and Sulak, K., 2006, Deep-water antipatharians: Proxies of environmental change: Geology, v. 34, no. 9, p. 773-776, https://doi.org/10.1130/G22685.1.","startPage":"773","endPage":"776","numberOfPages":"4","costCenters":[],"links":[{"id":210297,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G22685.1"},{"id":237175,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe31e4b0c8380cd4eba6","contributors":{"authors":[{"text":"Williams, B.","contributorId":80786,"corporation":false,"usgs":true,"family":"Williams","given":"B.","affiliations":[],"preferred":false,"id":417921,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Risk, Michael J.","contributorId":9841,"corporation":false,"usgs":true,"family":"Risk","given":"Michael","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":417918,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ross, Steve W.","contributorId":72543,"corporation":false,"usgs":false,"family":"Ross","given":"Steve","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":417919,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sulak, K. J. 0000-0002-4795-9310","orcid":"https://orcid.org/0000-0002-4795-9310","contributorId":76690,"corporation":false,"usgs":true,"family":"Sulak","given":"K. J.","affiliations":[],"preferred":false,"id":417920,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028247,"text":"70028247 - 2006 - A landscape perspective of the stream corridor invasion and habitat characteristics of an exotic (Dioscorea oppositifolia) in a pristine watershed in Illinois","interactions":[],"lastModifiedDate":"2019-11-21T10:27:14","indexId":"70028247","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1018,"text":"Biological Invasions","active":true,"publicationSubtype":{"id":10}},"displayTitle":"A landscape perspective of the stream corridor invasion and habitat characteristics of an exotic (Dioscorea oppositifolia) in a pristine watershed in Illinois","title":"A landscape perspective of the stream corridor invasion and habitat characteristics of an exotic (Dioscorea oppositifolia) in a pristine watershed in Illinois","docAbstract":"The spatial distribution of exotics across riparian landscapes is not uniform, and research elaborating the environmental constraints and dispersal behavior that underlie these patterns of distribution is warranted. This study examined the spatial distribution, growth patterns, and habitat constraints of populations of the invasive Dioscorea oppositifolia in a forested stream corridor of a tributary of Drury Creek in Giant City State Park, IL. The distribution of D. oppositifolia was determined at the watershed scale mainly by floodplain structure and connectivity. Populations of D. oppositifolia were confined to the floodplain, with overbank flooding from the stream. Dioscorea oppositifolia probably originates in disturbed areas upstream of natural corridors, and subsequently, the species disperses downstream into pristine canyons or ravines via bulbils dispersing in the water. In Giant City State Park, populations of D. oppositifolia were distributed on the floodplain across broad gradients of soil texture, light, slope, and potential radiation. The study also examined the longevity of bulbils in various micro-environments to illuminate strategies for the management of the species in invaded watersheds. After 1 year, the highest percentages of bulbils were viable under leaves, and much lower percentages were viable over leaves, in soil, and in the creek (76.0±6.8, 21.2±9.6, 21.6±3.6, and 5.2±5.2%), respectively. This study suggests that management procedures that reduce leaf litter on the forest floor (e.g., prescribed burning) could reduce the number of bulbils of D. oppositifolia stored in the watershed.
","language":"English","publisher":"Springer","doi":"10.1007/s10530-005-8155-5","issn":"13873547","usgsCitation":"Thomas, J., Middleton, B., and Gibson, D., 2006, A landscape perspective of the stream corridor invasion and habitat characteristics of an exotic (Dioscorea oppositifolia) in a pristine watershed in Illinois: Biological Invasions, v. 8, no. 5, p. 1103-1113, https://doi.org/10.1007/s10530-005-8155-5.","productDescription":"11 p.","startPage":"1103","endPage":"1113","numberOfPages":"11","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":236883,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Illinois","city":"Makanda","otherGeospatial":"Drury Creek, Giant City State Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -89.22306060791016,\n 37.55138234931889\n ],\n [\n -89.13002014160156,\n 37.55138234931889\n ],\n [\n -89.13002014160156,\n 37.61967039695652\n ],\n [\n -89.22306060791016,\n 37.61967039695652\n ],\n [\n -89.22306060791016,\n 37.55138234931889\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"8","issue":"5","noUsgsAuthors":false,"publicationDate":"2006-05-12","publicationStatus":"PW","scienceBaseUri":"5059e431e4b0c8380cd464b0","contributors":{"authors":[{"text":"Thomas, J.R.","contributorId":64011,"corporation":false,"usgs":true,"family":"Thomas","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":417223,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Middleton, B. 0000-0002-1220-2326","orcid":"https://orcid.org/0000-0002-1220-2326","contributorId":29939,"corporation":false,"usgs":true,"family":"Middleton","given":"B.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":false,"id":417222,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gibson, D.J.","contributorId":65822,"corporation":false,"usgs":true,"family":"Gibson","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":417224,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028397,"text":"70028397 - 2006 - Foraging behavior of redheads (Aythya americana) wintering in Texas and Louisiana","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028397","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Foraging behavior of redheads (Aythya americana) wintering in Texas and Louisiana","docAbstract":"Redheads, Aythya americana, concentrate in large numbers annually in traditional wintering areas along the western and northern rim of the Gulf of Mexico. Two of these areas are the Laguna Madre of Texas and Chandeleur Sound of Louisiana. We collected data on 54,340 activities from 103 redhead flocks in Texas and 51,650 activities from 57 redhead flocks in Louisiana. Males and females fed similarly, differing neither in levels of feeding (percent of all birds in flock that were feeding) (p>0.90) nor in percentages of birds feeding by diving, tipping, dipping, or gleaning from the surface (p>0.10). The foraging level of redheads in the upper Laguna Madre region was relatively constant throughout two winters. Foraging of redheads in early winter in Louisiana was significantly greater than redhead foraging in the upper Laguna Madre, but by late winter, foraging by redheads in Louisiana had declined to the same level as that shown by redheads foraging in the upper Laguna Madre. The overall foraging level of redheads from Chandeleur Sound was greater (41%) than that of redheads in the upper Laguna Madre (26%), yet it was quite similar to the 46% foraging level reported for redheads from the lower Laguna Madre. Redheads in the upper Laguna Madre region of Texas fed more by diving than did those in the Chandeleur Sound and the lower Laguna Madre. Diving increased in frequency in late winter. Greater reliance by redheads on diving in January and February indicates that the birds altered their foraging to feed in deeper water, suggesting that the large concentrations of redheads staging at this time for spring migration may have displaced some birds to alternative foraging sites. Our results imply that the most likely period for food resources to become limiting for wintering redheads is when they are staging in late winter. ?? Springer 2006.","largerWorkTitle":"Hydrobiologia","language":"English","doi":"10.1007/s10750-006-0057-8","issn":"00188158","usgsCitation":"Woodin, M., and Michot, T., 2006, Foraging behavior of redheads (Aythya americana) wintering in Texas and Louisiana, in Hydrobiologia, v. 567, no. 1, p. 129-141, https://doi.org/10.1007/s10750-006-0057-8.","startPage":"129","endPage":"141","numberOfPages":"13","costCenters":[],"links":[{"id":210216,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10750-006-0057-8"},{"id":237069,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"567","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a12f5e4b0c8380cd54478","contributors":{"authors":[{"text":"Woodin, M.C.","contributorId":97307,"corporation":false,"usgs":true,"family":"Woodin","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":417889,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Michot, T.C. 0000-0002-7044-987X","orcid":"https://orcid.org/0000-0002-7044-987X","contributorId":43426,"corporation":false,"usgs":true,"family":"Michot","given":"T.C.","affiliations":[],"preferred":false,"id":417888,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028396,"text":"70028396 - 2006 - Secondary gas emissions during coal desorption, Marathon Grassim Oskolkoff-1 Well, Cook Inlet Basin, Alaska: Implications for resource assessment","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028396","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1100,"text":"Bulletin of Canadian Petroleum Geology","active":true,"publicationSubtype":{"id":10}},"title":"Secondary gas emissions during coal desorption, Marathon Grassim Oskolkoff-1 Well, Cook Inlet Basin, Alaska: Implications for resource assessment","docAbstract":"Cuttings samples of sub-bituminous humic coals from the Oligocene to Pliocene Tyonek Formation, Cook Inlet Basin, Alaska show secondary gas emissions whose geochemistry is consistent with renewed microbial methanogenesis during canister desorption. The renewed methanogenesis was noted after initial desorption measurements had ceased and a canister had an air and desorbed gas mixture backflow into the canister during a measurement. About a week after this event, a secondary emission of gas began and continued for over two years. The desorbed gas volume reached a new maximum, increasing the total from 3.3 to 4.9 litres, some 48% above the pre-contamination total volume. The gases released during desorption show a shift in the isotopic signature over time of methane from ??13CCH4 of -53.60 ??? and ??DCH4 of -312.60 ??? at the first day to ??13CCH4 of -57.06 ??? and ??DCH4 of -375.80 ??? after 809 days, when the experiment was arbitrarily stopped and the canister opened to study the coal. These isotopic data, interpreted using a Bernard Diagram, indicate a shift from a mixed thermogenic and biogenic source typical of natural gases in the coals and conventional gas reservoirs of the Cook Inlet Basin to a likely biogenic acetate-fermentation methane source. However, the appearance of CO2 during the renewed gas emissions with a ??13CCO2 of +26.08 to +21.72 ???, interpreted using the carbon isotope fractions found for acetate fermentation and CO2 reduction between CO2 and CH4 by Jenden and Kaplan (1986), indicates a biogenic CO2-reduction pathway may also be operative during renewed gas emission. Adding nutrients to the coal cuttings and canister water and culturing the microbial consortia under anaerobic conditions led to additional methane-rich gas generation in the laboratory. After this anaerobic culturing, ultraviolet microscopy showed that canister water contained common, fluorescent, rod-like microbes comparable to Methanobacterium sp. Scanning electron microscope investigations of the coal matrix showed several morphological types of microbes, including rod, cocci and spherical forms attached to the coal surface. These microbes apparently represent at least a portion of the microbial consortia needed to depolymerize coal, as well as to generate the observed secondary methane emission from the canister. The introduction of 48% more methane from secondary sources has a major impact on coal-bed methane resource assessments and also in determining the true, in-situ degree of methane saturation in coal-beds using isotherms. Canister and isotherm measurements that show \"supersaturation\" of methane may actually be the result of additional gases generated during secondary methanogenesis.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Canadian Petroleum Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2113/gscpgbull.54.3.273","issn":"00074802","usgsCitation":"Barker, C., and Dallegge, T., 2006, Secondary gas emissions during coal desorption, Marathon Grassim Oskolkoff-1 Well, Cook Inlet Basin, Alaska: Implications for resource assessment: Bulletin of Canadian Petroleum Geology, v. 54, no. 3, p. 273-291, https://doi.org/10.2113/gscpgbull.54.3.273.","startPage":"273","endPage":"291","numberOfPages":"19","costCenters":[],"links":[{"id":210215,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/gscpgbull.54.3.273"},{"id":237068,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b891be4b08c986b316d1f","contributors":{"authors":[{"text":"Barker, C.E.","contributorId":69991,"corporation":false,"usgs":true,"family":"Barker","given":"C.E.","affiliations":[],"preferred":false,"id":417887,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dallegge, T.","contributorId":10982,"corporation":false,"usgs":true,"family":"Dallegge","given":"T.","affiliations":[],"preferred":false,"id":417886,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028395,"text":"70028395 - 2006 - Groundwater-transported dissolved organic nitrogen exports from coastal watersheds","interactions":[],"lastModifiedDate":"2018-06-07T10:53:19","indexId":"70028395","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2620,"text":"Limnology and Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Groundwater-transported dissolved organic nitrogen exports from coastal watersheds","docAbstract":"We analyzed groundwater-transported nitrogen (N) exports from 41 watershed segments that comprised 10 Cape Cod, Massachusetts watersheds to test the hypotheses that chemical form of N exports is related to land use and to length of flow paths through watersheds. In the absence of human habitation, these glacial outwash-plain watersheds exported largely dissolved organic N (DON) but at relatively low annual rate. Addition of people to watersheds increased rates of both total dissolved N (TDN) and DON export through groundwater. Percent of TDN as DON in groundwater was negatively related to path length of groundwater through aquifers, but %DON was not significantly related to population density on the watersheds. DON was often the dominant form of N exported from the watersheds, even at high population densities. Our results suggest that natural sources are not entirely responsible for organic N exports from watersheds, but, instead, a substantial portion of anthropogenic N introduced to watersheds is exported as DON. This finding is in disagreement with previous results, which suggest that anthropogenic N is exported from watersheds largely as NO 3- and that DON exported from watersheds is from natural sources.
","language":"English","publisher":"American Society of Limnology and Oceanography","doi":"10.4319/lo.2006.51.5.2248","usgsCitation":"Kroeger, K., Cole, M.L., and Valiela, I., 2006, Groundwater-transported dissolved organic nitrogen exports from coastal watersheds: Limnology and Oceanography, v. 51, no. 5, p. 2248-2261, https://doi.org/10.4319/lo.2006.51.5.2248.","productDescription":"14 p.","startPage":"2248","endPage":"2261","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":477468,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.4319/lo.2006.51.5.2248","text":"Publisher Index Page"},{"id":237035,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Massachusetts","city":"Cape Cod","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -70.73684692382812,\n 41.50446357504803\n ],\n [\n -70.125732421875,\n 41.50446357504803\n ],\n [\n -70.125732421875,\n 41.96357478222518\n ],\n [\n -70.73684692382812,\n 41.96357478222518\n ],\n [\n -70.73684692382812,\n 41.50446357504803\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"51","issue":"5","noUsgsAuthors":false,"publicationDate":"2006-09-14","publicationStatus":"PW","scienceBaseUri":"505a2dd4e4b0c8380cd5c070","contributors":{"authors":[{"text":"Kroeger, K.D.","contributorId":26060,"corporation":false,"usgs":true,"family":"Kroeger","given":"K.D.","email":"","affiliations":[],"preferred":false,"id":417883,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cole, Marci L.","contributorId":101071,"corporation":false,"usgs":true,"family":"Cole","given":"Marci","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":417885,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Valiela, I.","contributorId":29146,"corporation":false,"usgs":true,"family":"Valiela","given":"I.","affiliations":[],"preferred":false,"id":417884,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":85612,"text":"85612 - 2006 - Recurring waterbird mortalities and unusual etiologies","interactions":[],"lastModifiedDate":"2018-01-23T15:59:47","indexId":"85612","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"chapter":"4.2.6","title":"Recurring waterbird mortalities and unusual etiologies","docAbstract":"Over the last decade, the National Wildlife Health Center of the United States Geological Survey has documented various largescale mortalities of birds caused by infectious and non-infectious disease agents. Some of these mortality events have unusual or unidentified etiologies and have been recurring. While some of the causes of mortalities have been elucidated, others remain in various stages of investigation and identification. Two examples are discussed: 1) Leyogonimus polyoon (Class: Trematoda), not found in the New World until 1999, causes severe enteritis and has killed over 15 000 American Coot Fulica americana in the upper mid-western United States. The geographic range of this parasite within North America is predicted to be limited to the Great Lakes Basin. 2) In the early 1990s, estimates of up to 6% of the North American population of the Eared Grebe Podiceps nigricollis died at Salton Sea, California, with smaller mortalities occurring throughout the 1990s. Birds were observed to have unusual preening behaviour, and to congregate at freshwater drains and move onto land. Suggested etiologies included interactions of contaminants, immuno-suppression, an unusual form of a bacterial disease, and an unknown biotoxin. During studies carried out from 2000 to 2003, Eared Grebe mortality did not approach the level seen in the early 1990s and, although bacteria were identified as minor factors, the principal cause of mortality remains undetermined. The potential population impact of these emerging and novel disease agents is currently unknown.
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C.","contributorId":111405,"corporation":false,"usgs":false,"family":"Boere","given":"Gerard","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":504564,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Galbraith, Colin A.","contributorId":113310,"corporation":false,"usgs":false,"family":"Galbraith","given":"Colin","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":504565,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Stroud, David A.","contributorId":113852,"corporation":false,"usgs":true,"family":"Stroud","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":504566,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Cole, Rebecca A. 0000-0003-2923-1622 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Christian 0000-0002-0251-4238 jfranson@usgs.gov","orcid":"https://orcid.org/0000-0002-0251-4238","contributorId":177499,"corporation":false,"usgs":true,"family":"Franson","given":"J.","email":"jfranson@usgs.gov","middleInitial":"Christian","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":296123,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028271,"text":"70028271 - 2006 - Temporal and spatial variability of fecal indicator bacteria in the surf zone off Huntington Beach, CA","interactions":[],"lastModifiedDate":"2012-03-12T17:20:52","indexId":"70028271","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2664,"text":"Marine Environmental Research","active":true,"publicationSubtype":{"id":10}},"title":"Temporal and spatial variability of fecal indicator bacteria in the surf zone off Huntington Beach, CA","docAbstract":"Fecal indicator bacteria concentrations measured in the surf zone off Huntington Beach, CA from July 1998-December 2001 were analyzed with respect to their spatial patterns along 23 km of beach, and temporal variability on time scales from hourly to fortnightly. The majority of samples had bacterial concentrations less than, or equal to, the minimum detection limit, but a small percentage exceeded the California recreational water standards. Areas where coliform bacteria exceeded standards were more prevalent north of the Santa Ana River, whereas enterococci exceedances covered a broad area both north and south of the river. Higher concentrations of bacteria were associated with spring tides. No temporal correspondence was found between these bacterial events and either the timing of cold water pulses near shore due to internal tides, or the presence of southerly swell in the surface wave field. All three fecal indicator bacteria exhibited a diel cycle, but enterococci rebounded to high nighttime values almost as soon as the sun went down, whereas coliform levels were highest near the nighttime low tide, which was also the lower low tide. ?? 2006 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Environmental Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marenvres.2006.02.003","issn":"01411136","usgsCitation":"Rosenfeld, L., McGee, C., Robertson, G., Noble, M., and Jones, B., 2006, Temporal and spatial variability of fecal indicator bacteria in the surf zone off Huntington Beach, CA: Marine Environmental Research, v. 61, no. 5, p. 471-493, https://doi.org/10.1016/j.marenvres.2006.02.003.","startPage":"471","endPage":"493","numberOfPages":"23","costCenters":[],"links":[{"id":210373,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marenvres.2006.02.003"},{"id":237271,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"61","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba4f5e4b08c986b3206d9","contributors":{"authors":[{"text":"Rosenfeld, L.K.","contributorId":24957,"corporation":false,"usgs":true,"family":"Rosenfeld","given":"L.K.","email":"","affiliations":[],"preferred":false,"id":417332,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McGee, C.D.","contributorId":73388,"corporation":false,"usgs":true,"family":"McGee","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":417334,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Robertson, G.L.","contributorId":25734,"corporation":false,"usgs":true,"family":"Robertson","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":417333,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Noble, M.A.","contributorId":93513,"corporation":false,"usgs":true,"family":"Noble","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":417335,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jones, B.H.","contributorId":96810,"corporation":false,"usgs":true,"family":"Jones","given":"B.H.","email":"","affiliations":[],"preferred":false,"id":417336,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70028274,"text":"70028274 - 2006 - Overview of investigations into mercury in ground water, soils, and septage, New Jersey coastal plain","interactions":[],"lastModifiedDate":"2019-10-21T10:44:57","indexId":"70028274","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Overview of investigations into mercury in ground water, soils, and septage, New Jersey coastal plain","docAbstract":"Since the early 1980s, investigations by health departments of eight counties in southern New Jersey, by the NJ Department of Environmental Protection (NJDEP), and subsequently by the US Geological Survey (USGS), have shown that Hg concentrations in water tapped by about 600 domestic wells exceed the maximum contaminant level (MCL) of 2 μg/L. The wells are finished in the areally extensive unconfined Kirkwood-Cohansey aquifer system of New Jersey's Coastal Plain; background concentrations of Hg in water from this system are < 0.01 μg/L. Evidence of contributions from point sources of Hg, such as landfills or commercial and industrial hazardous-waste sites, is lacking. During 1996–2003, the USGS collected water samples from 203 domestic, irrigation, observation, and production wells using ultraclean techniques; septage, leach-field effluent, soils, and aquifer sediments also were sampled. Elevated concentrations of NH4, B, Cl, NO3, and Na and presence of surfactants in domestic-well water indicate that septic-system effluent can affect water quality in unsewered residential areas, but neither septage nor effluent appears to be a major Hg source. Detections of hydrogen sulfide in ground water at a residential area indicate localized reducing conditions; undetectable SO4 concentrations in water from other residential areas indicate that reducing conditions, which could be conducive to Hg methylation, may be common locally. Volatile organic compounds (VOCs), mostly chlorinated solvents, also are found in ground water at the affected areas, but statistically significant associations between presence of Hg and VOCs were absent for most areas evaluated. Hg concentrations are lower in some filtered water samples than in paired unfiltered samples, likely indicating that some Hg is associated with particles or colloids. The source of colloids may be soils, which, when undisturbed, contain higher concentrations of Hg than do disturbed soils and aquifer sediments. Soil disturbance during residential development and inputs from septic systems are hypothesized to mobilize Hg from soils to ground water.
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L.","contributorId":13994,"corporation":false,"usgs":true,"family":"Barringer","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":417348,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Szabo, Zoltan 0000-0002-0760-9607 zszabo@usgs.gov","orcid":"https://orcid.org/0000-0002-0760-9607","contributorId":2240,"corporation":false,"usgs":true,"family":"Szabo","given":"Zoltan","email":"zszabo@usgs.gov","affiliations":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"preferred":false,"id":417349,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028101,"text":"70028101 - 2006 - Instantaneous unit hydrograph evaluation for rainfall-runoff modeling of small watersheds in North and South Central Texas","interactions":[],"lastModifiedDate":"2012-03-12T17:20:51","indexId":"70028101","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2362,"text":"Journal of Irrigation and Drainage Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Instantaneous unit hydrograph evaluation for rainfall-runoff modeling of small watersheds in North and South Central Texas","docAbstract":"Data from over 1,600 storms at 91 stations in Texas are analyzed to evaluate an instantaneous unit hydrograph (IUH) model for rainfall-runoff models. The model is fit to observed data using two different merit functions: a sum of squared errors function, and an absolute error at the peak discharge time (QpMAX) function. The model is compared to two other models using several criteria. Analysis suggests that the Natural Resources Conservation Service Dimensionless Unit Hydrograph, Commons' Texas hydrograph, and the Rayleigh IUH perform similarly. As the NRCS and Commons' models are tabulations, the Rayleigh model is an adequate substitute when a continuous model is necessary. The adjustable shape parameter in the Rayleigh model does not make any dramatic improvement in overall performance for these data, thus fixed shape hydrographs are adequate for these watersheds. ?? 2006 ASCE.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Irrigation and Drainage Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1061/(ASCE)0733-9437(2006)132:5(479)","issn":"07339437","usgsCitation":"Cleveland, T., He, X., Asquith, W., Fang, X., and Thompson, D., 2006, Instantaneous unit hydrograph evaluation for rainfall-runoff modeling of small watersheds in North and South Central Texas: Journal of Irrigation and Drainage Engineering, v. 132, no. 5, p. 479-485, https://doi.org/10.1061/(ASCE)0733-9437(2006)132:5(479).","startPage":"479","endPage":"485","numberOfPages":"7","costCenters":[],"links":[{"id":210307,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)0733-9437(2006)132:5(479)"},{"id":237191,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"132","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3c29e4b0c8380cd62b12","contributors":{"authors":[{"text":"Cleveland, T.G.","contributorId":40094,"corporation":false,"usgs":true,"family":"Cleveland","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":416541,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"He, X.","contributorId":85540,"corporation":false,"usgs":true,"family":"He","given":"X.","email":"","affiliations":[],"preferred":false,"id":416543,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Asquith, W.H.","contributorId":87980,"corporation":false,"usgs":true,"family":"Asquith","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":416544,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fang, X.","contributorId":32288,"corporation":false,"usgs":true,"family":"Fang","given":"X.","email":"","affiliations":[],"preferred":false,"id":416540,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Thompson, D.B.","contributorId":74418,"corporation":false,"usgs":true,"family":"Thompson","given":"D.B.","email":"","affiliations":[],"preferred":false,"id":416542,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}