Generally, growth rates of living organisms are considered to be at steady state, varying only under environmental forcing factors. For example, these rates may be described as a function of light for plants or organic food resources for animals and these could be regulated (or not) by temperature or other conditions. But, what are the consequences for an individual's growth (and also for the population growth) if growth rate variations are themselves dynamic and not steady state? For organisms presenting phases of dormancy or long periods of stress, this is a crucial question. A dynamic perspective for quantifying short-term growth was explored using the daily growth record of the scallop Pecten maximus (L.). This species is a good biological model for ectotherm growth because the shell records growth striae daily. Independently, a generic mathematical function representing the dynamics of mean daily growth rate (MDGR) was implemented to simulate a diverse set of growth patterns. Once the function was calibrated with the striae patterns, the growth rate dynamics appeared as a forced damped oscillation during the growth period having a basic periodicity during two transitory phases (mean duration 43. days) and appearing at both growth start and growth end. This phase is most likely due to the internal dynamics of energy transfer within the organism rather than to external forcing factors. After growth restart, the transitory regime represents successive phases of over-growth and regulation. This pattern corresponds to a typical representation of compensatory growth, which from an evolutionary perspective can be interpreted as an adaptive strategy to coping with a fluctuating environment.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.seares.2011.02.001","issn":"13851101","usgsCitation":"Guarini, J.-., Chauvaud, L., Cloern, J.E., Clavier, J., Coston-Guarini, J., and Patry, Y., 2011, Seasonal variations in ectotherm growth rates: Quantifying growth as an intermittent non steady state compensatory process: Journal of Sea Research, v. 65, no. 3, p. 355-361, https://doi.org/10.1016/j.seares.2011.02.001.","productDescription":"7 p.","startPage":"355","endPage":"361","numberOfPages":"7","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241874,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b88f0e4b08c986b316c51","contributors":{"authors":[{"text":"Guarini, J. -M.","contributorId":64829,"corporation":false,"usgs":false,"family":"Guarini","given":"J.","middleInitial":"-M.","affiliations":[],"preferred":false,"id":442705,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chauvaud, Laurent","contributorId":72982,"corporation":false,"usgs":true,"family":"Chauvaud","given":"Laurent","email":"","affiliations":[],"preferred":false,"id":442707,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cloern, James E. 0000-0002-5880-6862 jecloern@usgs.gov","orcid":"https://orcid.org/0000-0002-5880-6862","contributorId":1488,"corporation":false,"usgs":true,"family":"Cloern","given":"James","email":"jecloern@usgs.gov","middleInitial":"E.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":779377,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clavier, J.","contributorId":38789,"corporation":false,"usgs":true,"family":"Clavier","given":"J.","email":"","affiliations":[],"preferred":false,"id":442702,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Coston-Guarini, J.","contributorId":67307,"corporation":false,"usgs":true,"family":"Coston-Guarini","given":"J.","email":"","affiliations":[],"preferred":false,"id":442706,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Patry, Y.","contributorId":59641,"corporation":false,"usgs":true,"family":"Patry","given":"Y.","email":"","affiliations":[],"preferred":false,"id":442704,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70033826,"text":"70033826 - 2011 - Bat mortality and activity at a Northern Iowa wind resource area","interactions":[],"lastModifiedDate":"2012-03-12T17:21:32","indexId":"70033826","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":737,"text":"American Midland Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Bat mortality and activity at a Northern Iowa wind resource area","docAbstract":"We examined bat collision mortality, activity and species composition at an 89-turbine wind resource area in farmland of north-central Iowa from mid-Apr. to mid-Dec., 2003 and mid-Mar. to mid-Dec., 2004. We found 30 bats beneath turbines on cleared ground and gravel access areas in 2003 and 45 bats in 2004. After adjusting for search probability, search efficiency and scavenging rate, we estimated total bat mortality at 396 ?? 72 (95 ci) in 2003 and 636 ?? 112 (95 ci) in 2004. Although carcasses were mostly migratory tree bats, we found a considerable proportion of little brown bats (Myotis lucifugus). We recorded 1465 bat echolocation call files at turbine sites ( 34.88 call files/detector-night) and 1536 bat call files at adjacent non-turbine sites ( 36.57 call files/detector-night). Bat activity did not differ significantly between turbine and non-turbine sites. A large proportion of recorded call files were made by Myotis sp. but this may be because we detected activity at ground level only. There was no relationship between types of turbine lights and either collision mortality or echolocation activity. The highest levels of bat echolocation activity and collision mortality were recorded during Jul. and Aug. during the autumn dispersal and migration period. The fatality rates for bats in general and little brown bats in particular were higher at the Top of Iowa Wind Resource Area than at other, comparable studies in the region. Future efforts to study behavior of bats in flight around turbines as well as cumulative impact studies should not ignore non-tree dwelling bats, generally regarded as minimally affected. ?? 2011, American Midland Naturalist.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Midland Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1674/0003-0031-165.1.185","issn":"00030031","usgsCitation":"Jain, A., Koford, R.R., Hancock, A., and Zenner, G.G., 2011, Bat mortality and activity at a Northern Iowa wind resource area: American Midland Naturalist, v. 165, no. 1, p. 185-200, https://doi.org/10.1674/0003-0031-165.1.185.","startPage":"185","endPage":"200","numberOfPages":"16","costCenters":[],"links":[{"id":214236,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1674/0003-0031-165.1.185"},{"id":241936,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"165","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eff4e4b0c8380cd4a532","contributors":{"authors":[{"text":"Jain, A.A.","contributorId":75345,"corporation":false,"usgs":true,"family":"Jain","given":"A.A.","email":"","affiliations":[],"preferred":false,"id":442719,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Koford, Rolf R.","contributorId":16347,"corporation":false,"usgs":true,"family":"Koford","given":"Rolf","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":442717,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hancock, A.W.","contributorId":98128,"corporation":false,"usgs":true,"family":"Hancock","given":"A.W.","email":"","affiliations":[],"preferred":false,"id":442720,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zenner, G. G.","contributorId":45913,"corporation":false,"usgs":true,"family":"Zenner","given":"G.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":442718,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70033953,"text":"70033953 - 2011 - Advancing environmental toxicology through chemical dosimetry: External exposures versus tissue residues","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70033953","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2006,"text":"Integrated Environmental Assessment and Management","active":true,"publicationSubtype":{"id":10}},"title":"Advancing environmental toxicology through chemical dosimetry: External exposures versus tissue residues","docAbstract":"The tissue residue dose concept has been used, although in a limited manner, in environmental toxicology for more than 100 y. This review outlines the history of this approach and the technical background for organic chemicals and metals. Although the toxicity of both can be explained in tissue residue terms, the relationship between external exposure concentration, body and/or tissues dose surrogates, and the effective internal dose at the sites of toxic action tends to be more complex for metals. Various issues and current limitations related to research and regulatory applications are also examined. It is clear that the tissue residue approach (TRA) should be an integral component in future efforts to enhance the generation, understanding, and utility of toxicity testing data, both in the laboratory and in the field. To accomplish these goals, several key areas need to be addressed: 1) development of a risk-based interpretive framework linking toxicology and ecology at multiple levels of biological organization and incorporating organism-based dose metrics; 2) a broadly applicable, generally accepted classification scheme for modes/mechanisms of toxic action with explicit consideration of residue information to improve both single chemical and mixture toxicity data interpretation and regulatory risk assessment; 3) toxicity testing protocols updated to ensure collection of adequate residue information, along with toxicokinetics and toxicodynamics information, based on explicitly defined toxicological models accompanied by toxicological model validation; 4) continued development of residueeffect databases is needed ensure their ongoing utility; and 5) regulatory guidance incorporating residue-based testing and interpretation approaches, essential in various jurisdictions. ??:2010 SETAC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Integrated Environmental Assessment and Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/ieam.98","issn":"15513793","usgsCitation":"McCarty, L., Landrum, P., Luoma, S., Meador, J., Merten, A., Shephard, B., and van Wezelzz, A., 2011, Advancing environmental toxicology through chemical dosimetry: External exposures versus tissue residues: Integrated Environmental Assessment and Management, v. 7, no. 1, p. 7-27, https://doi.org/10.1002/ieam.98.","startPage":"7","endPage":"27","numberOfPages":"21","costCenters":[],"links":[{"id":241849,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214155,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/ieam.98"}],"volume":"7","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-01","publicationStatus":"PW","scienceBaseUri":"5059e706e4b0c8380cd477da","contributors":{"authors":[{"text":"McCarty, L.S.","contributorId":10237,"corporation":false,"usgs":true,"family":"McCarty","given":"L.S.","email":"","affiliations":[],"preferred":false,"id":443358,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Landrum, P.F.","contributorId":98423,"corporation":false,"usgs":true,"family":"Landrum","given":"P.F.","email":"","affiliations":[],"preferred":false,"id":443363,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luoma, S. N.","contributorId":86353,"corporation":false,"usgs":true,"family":"Luoma","given":"S. N.","affiliations":[],"preferred":false,"id":443362,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meador, J.P.","contributorId":68545,"corporation":false,"usgs":true,"family":"Meador","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":443361,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Merten, A.A.","contributorId":34336,"corporation":false,"usgs":true,"family":"Merten","given":"A.A.","email":"","affiliations":[],"preferred":false,"id":443359,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Shephard, B.K.","contributorId":102700,"corporation":false,"usgs":true,"family":"Shephard","given":"B.K.","email":"","affiliations":[],"preferred":false,"id":443364,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"van Wezelzz, A.P.","contributorId":66076,"corporation":false,"usgs":true,"family":"van Wezelzz","given":"A.P.","email":"","affiliations":[],"preferred":false,"id":443360,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70033956,"text":"70033956 - 2011 - Notes on the origin of inertinite macerals in coals: Funginite associations with cutinite and suberinite","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70033956","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"Notes on the origin of inertinite macerals in coals: Funginite associations with cutinite and suberinite","docAbstract":"The association of fungus with plant leaves and roots is ubiquitous. While many of these occurrences are considered to be pathogenic, mycorrhizzal fungal associations with roots are essential for plant growth. Despite the common knowledge of such relationships in plant science, with a few exceptions, the fungus/leaf/root/stem association as the macerals funginite, cutinite, and suberinite in coals has not been extensively studied. In this work, examples of funginite associations with cutinite and suberinite are discussed. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.coal.2010.11.008","issn":"01665162","usgsCitation":"Hower, J., O’Keefe, J., Eble, C., Volk, T., Richardson, A., Satterwhite, A.B., Hatch, R., and Kostova, I., 2011, Notes on the origin of inertinite macerals in coals: Funginite associations with cutinite and suberinite: International Journal of Coal Geology, v. 85, no. 1, p. 186-190, https://doi.org/10.1016/j.coal.2010.11.008.","startPage":"186","endPage":"190","numberOfPages":"5","costCenters":[],"links":[{"id":214188,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coal.2010.11.008"},{"id":241882,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"85","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6892e4b0c8380cd738b7","contributors":{"authors":[{"text":"Hower, J.C.","contributorId":100541,"corporation":false,"usgs":true,"family":"Hower","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":443385,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Keefe, J.M.K.","contributorId":21768,"corporation":false,"usgs":false,"family":"O’Keefe","given":"J.M.K.","email":"","affiliations":[{"id":35685,"text":"Morehead State University, Morehead, KY","active":true,"usgs":false}],"preferred":false,"id":443379,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Eble, C.F.","contributorId":35346,"corporation":false,"usgs":true,"family":"Eble","given":"C.F.","email":"","affiliations":[],"preferred":false,"id":443382,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Volk, T.J.","contributorId":94115,"corporation":false,"usgs":true,"family":"Volk","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":443384,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Richardson, A.R.","contributorId":24382,"corporation":false,"usgs":true,"family":"Richardson","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":443380,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Satterwhite, Anne B.","contributorId":88165,"corporation":false,"usgs":true,"family":"Satterwhite","given":"Anne","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":443383,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hatch, R.S.","contributorId":26151,"corporation":false,"usgs":true,"family":"Hatch","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":443381,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kostova, I.J.","contributorId":7096,"corporation":false,"usgs":true,"family":"Kostova","given":"I.J.","email":"","affiliations":[],"preferred":false,"id":443378,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70033959,"text":"70033959 - 2011 - Recent faulting in western Nevada revealed by multi-scale seismic reflection","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70033959","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3317,"text":"SEG Technical Program Expanded Abstracts","active":true,"publicationSubtype":{"id":10}},"title":"Recent faulting in western Nevada revealed by multi-scale seismic reflection","docAbstract":"The main goal of this study is to compare different reflection methods used to image subsurface structure within different physical environments in western Nevada. With all the methods employed, the primary goal is fault imaging for structural information toward geothermal exploration and seismic hazard estimation. We use seismic CHIRP a swept-frequency marine acquisition system, weight drop an accelerated hammer source, and two different vibroseis systems to characterize fault structure. We focused our efforts in the Reno metropolitan area and the area within and surrounding Pyramid Lake in northern Nevada. These different methods have provided valuable constraints on the fault geometry and activity, as well as associated fluid movement. These are critical in evaluating the potential for large earthquakes in these areas, and geothermal exploration possibilities near these structures. ?? 2011 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"SEG Technical Program Expanded Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.3627458","issn":"10523812","usgsCitation":"Frary, R., Louie, J., Stephenson, W.J., Odum, J.K., Kell, A., Eisses, A., Kent, G., Driscoll, N.W., Karlin, R., Baskin, R.L., Pullammanappallil, S., and Liberty, L., 2011, Recent faulting in western Nevada revealed by multi-scale seismic reflection: SEG Technical Program Expanded Abstracts, v. 30, no. 1, p. 1373-1377, https://doi.org/10.1190/1.3627458.","startPage":"1373","endPage":"1377","numberOfPages":"5","costCenters":[],"links":[{"id":214244,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.3627458"},{"id":241944,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-05-25","publicationStatus":"PW","scienceBaseUri":"505a961ae4b0c8380cd81ddb","contributors":{"authors":[{"text":"Frary, R.N.","contributorId":43580,"corporation":false,"usgs":true,"family":"Frary","given":"R.N.","email":"","affiliations":[],"preferred":false,"id":443407,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Louie, J.N.","contributorId":13795,"corporation":false,"usgs":true,"family":"Louie","given":"J.N.","email":"","affiliations":[],"preferred":false,"id":443402,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stephenson, W. J.","contributorId":87982,"corporation":false,"usgs":true,"family":"Stephenson","given":"W.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":443411,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Odum, J. K.","contributorId":105705,"corporation":false,"usgs":true,"family":"Odum","given":"J.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":443413,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kell, A.","contributorId":88571,"corporation":false,"usgs":true,"family":"Kell","given":"A.","email":"","affiliations":[],"preferred":false,"id":443412,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Eisses, A.","contributorId":28085,"corporation":false,"usgs":true,"family":"Eisses","given":"A.","affiliations":[],"preferred":false,"id":443404,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kent, G.M.","contributorId":34729,"corporation":false,"usgs":true,"family":"Kent","given":"G.M.","email":"","affiliations":[],"preferred":false,"id":443405,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Driscoll, N. W.","contributorId":41093,"corporation":false,"usgs":true,"family":"Driscoll","given":"N.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":443406,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Karlin, R.","contributorId":80092,"corporation":false,"usgs":true,"family":"Karlin","given":"R.","affiliations":[],"preferred":false,"id":443410,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Baskin, R. L.","contributorId":14460,"corporation":false,"usgs":true,"family":"Baskin","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":443403,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Pullammanappallil, S.","contributorId":64041,"corporation":false,"usgs":true,"family":"Pullammanappallil","given":"S.","affiliations":[],"preferred":false,"id":443409,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Liberty, L.M.","contributorId":58749,"corporation":false,"usgs":true,"family":"Liberty","given":"L.M.","affiliations":[],"preferred":false,"id":443408,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70033960,"text":"70033960 - 2011 - Comparative performance of CO2 measuring methods: marine aquaculture recirculation system application","interactions":[],"lastModifiedDate":"2013-04-21T19:13:23","indexId":"70033960","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":852,"text":"Aquacultural Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Comparative performance of CO2 measuring methods: marine aquaculture recirculation system application","docAbstract":"Many methods are available for the measurement of dissolved carbon dioxide in an aqueous environment. Standard titration is the typical field method for measuring dissolved CO2 in aquaculture systems. However, titrimetric determination of dissolved CO2 in marine water aquaculture systems is unsuitable because of the high dissolved solids, silicates, and other dissolved minerals that interfere with the determination. Other methods used to measure dissolved carbon dioxide in an aquaculture water included use of a wetted CO2 probe analyzer, standard nomographic methods, and calculation by direct measurements of the water's pH, temperature, and alkalinity. The determination of dissolved CO2 in saltwater based on partial pressure measurements and non-dispersive infra-red (NDIR) techniques with a CO2 gas analyzer are widely employed for oceanic surveys of surface ocean CO2 flux and are similar to the techniques employed with the head space unit (HSU) in this study. Dissolved carbon dioxide (DC) determination with the HSU using a infra-red gas analyzer (IRGA) was compared with titrimetric, nomographic, calculated, and probe measurements of CO2 in freshwater and in saltwater with a salinity ranging from 5.0 to 30 ppt, and a CO2 range from 8 to 50 mg/L. Differences in CO2 measurements between duplicate HSUs (0.1–0.2 mg/L) were not statistically significant different. The coefficient of variation for the HSU readings averaged 1.85% which was better than the CO2 probe (4.09%) and that for the titrimetric method (5.84%). In all low, medium and high salinity level trials HSU precision was good, averaging 3.39%. Differences existed between comparison testing of the CO2 probe and HSU measurements with the CO2 probe readings, on average, providing DC estimates that were higher than HSU estimates. Differences between HSU and titration based estimates of DC increased with salinity and reached a maximum at 32.2 ppt. These differences were statistically significant (P < 0.05) at all salinity levels greater than 0.3 ppt. Results indicated reliable replicated results from the head space unit with varying salinity and dissolved carbon dioxide concentrations.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquacultural Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.aquaeng.2010.10.001","issn":"01448609","usgsCitation":"Pfeiffer, T., Summerfelt, S., and Watten, B., 2011, Comparative performance of CO2 measuring methods: marine aquaculture recirculation system application: Aquacultural Engineering, v. 44, no. 1, p. 1-9, https://doi.org/10.1016/j.aquaeng.2010.10.001.","productDescription":"9 p.","startPage":"1","endPage":"9","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":475395,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.aquaeng.2010.10.001","text":"Publisher Index Page"},{"id":216681,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.aquaeng.2010.10.001"},{"id":244566,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f821e4b0c8380cd4ceca","contributors":{"authors":[{"text":"Pfeiffer, T.J.","contributorId":61266,"corporation":false,"usgs":true,"family":"Pfeiffer","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":443416,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Summerfelt, S.T.","contributorId":47717,"corporation":false,"usgs":true,"family":"Summerfelt","given":"S.T.","email":"","affiliations":[],"preferred":false,"id":443415,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Watten, B.J. 0000-0002-2227-8623","orcid":"https://orcid.org/0000-0002-2227-8623","contributorId":11537,"corporation":false,"usgs":true,"family":"Watten","given":"B.J.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":443414,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70033961,"text":"70033961 - 2011 - Trophic magnification of PCBs and its relationship to the octanol-water partition coefficient","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70033961","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","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":"Trophic magnification of PCBs and its relationship to the octanol-water partition coefficient","docAbstract":"We investigated polychlorinated biphenyl (PCB) bioaccumulation relative to octanol-water partition coefficient (KOW) and organism trophic position (TP) at the Lake Hartwell Superfund site (South Carolina). We measured PCBs (127 congeners) and stable isotopes (??15N) in sediment, organic matter, phytoplankton, zooplankton, macroinvertebrates, and fish. TP, as calculated from ??15N, was significantly, positively related to PCB concentrations, and food web trophic magnification factors (TMFs) ranged from 1.5-6.6 among congeners. TMFs of individual congeners increased strongly with log KOW, as did the predictive power (r2) of individual TP-PCB regression models used to calculate TMFs. We developed log KOW-TMF models for eight food webs with vastly different environments (freshwater, marine, arctic, temperate) and species composition (cold- vs warmblooded consumers). The effect of KOW on congener TMFs varied strongly across food webs (model slopes 0.0-15.0) because the range of TMFs among studies was also highly variable. We standardized TMFs within studies to mean = 0, standard deviation (SD) = 1 to normalize for scale differences and found a remarkably consistent KOW effect on TMFs (no difference in model slopes among food webs). Our findings underscore the importance of hydrophobicity (as characterized by KOW) in regulating bioaccumulation of recalcitrant compounds in aquatic systems, and demonstrate that relationships between chemical KOW and bioaccumulation from field studies are more generalized than previously recognized. ?? This article not subject to U.S. Copyright. Published 2011 by the American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es103158s","issn":"0013936X","usgsCitation":"Walters, D., Mills, M., Cade, B., and Burkard, L., 2011, Trophic magnification of PCBs and its relationship to the octanol-water partition coefficient: Environmental Science & Technology, v. 45, no. 9, p. 3917-3924, https://doi.org/10.1021/es103158s.","startPage":"3917","endPage":"3924","numberOfPages":"8","costCenters":[],"links":[{"id":216711,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es103158s"},{"id":244597,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"9","noUsgsAuthors":false,"publicationDate":"2011-04-05","publicationStatus":"PW","scienceBaseUri":"505bb887e4b08c986b3278e8","contributors":{"authors":[{"text":"Walters, D.M.","contributorId":41507,"corporation":false,"usgs":true,"family":"Walters","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":443417,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mills, M.A.","contributorId":77764,"corporation":false,"usgs":true,"family":"Mills","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":443420,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cade, B.S.","contributorId":47315,"corporation":false,"usgs":true,"family":"Cade","given":"B.S.","affiliations":[],"preferred":false,"id":443419,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burkard, L.P.","contributorId":44386,"corporation":false,"usgs":true,"family":"Burkard","given":"L.P.","email":"","affiliations":[],"preferred":false,"id":443418,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70033966,"text":"70033966 - 2011 - Classification of Thermal Patterns at Karst Springs and Cave Streams","interactions":[],"lastModifiedDate":"2012-03-12T17:21:48","indexId":"70033966","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","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":"Classification of Thermal Patterns at Karst Springs and Cave Streams","docAbstract":"Thermal patterns of karst springs and cave streams provide potentially useful information concerning aquifer geometry and recharge. Temperature monitoring at 25 springs and cave streams in southeastern Minnesota has shown four distinct thermal patterns. These patterns can be divided into two types: those produced by flow paths with ineffective heat exchange, such as conduits, and those produced by flow paths with effective heat exchange, such as small fractures and pore space. Thermally ineffective patterns result when water flows through the aquifer before it can equilibrate to the rock temperature. Thermally ineffective patterns can be either event-scale, as produced by rainfall or snowmelt events, or seasonal scale, as produced by input from a perennial surface stream. Thermally effective patterns result when water equilibrates to rock temperature, and the patterns displayed depend on whether the aquifer temperature is changing over time. Shallow aquifers with seasonally varying temperatures display a phase-shifted seasonal signal, whereas deeper aquifers with constant temperatures display a stable temperature pattern. An individual aquifer may display more than one of these patterns. Since karst aquifers typically contain both thermally effective and ineffective routes, we argue that the thermal response is strongly influenced by recharge mode. ?? 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.1745-6584.2010.00737.x","issn":"0017467X","usgsCitation":"Luhmann, A., Covington, M., Peters, A.J., Alexander, S., Anger, C., Green, J., Runkel, A.C., and Alexander, E., 2011, Classification of Thermal Patterns at Karst Springs and Cave Streams: Ground Water, v. 49, no. 3, p. 324-335, https://doi.org/10.1111/j.1745-6584.2010.00737.x.","startPage":"324","endPage":"335","numberOfPages":"12","costCenters":[],"links":[{"id":216806,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2010.00737.x"},{"id":244698,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"3","noUsgsAuthors":false,"publicationDate":"2011-04-25","publicationStatus":"PW","scienceBaseUri":"5059f618e4b0c8380cd4c5ba","contributors":{"authors":[{"text":"Luhmann, A.J.","contributorId":93731,"corporation":false,"usgs":true,"family":"Luhmann","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":443442,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Covington, M.D.","contributorId":19006,"corporation":false,"usgs":true,"family":"Covington","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":443437,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Peters, Albert J.","contributorId":92517,"corporation":false,"usgs":true,"family":"Peters","given":"Albert","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":443441,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Alexander, S.C.","contributorId":9853,"corporation":false,"usgs":true,"family":"Alexander","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":443436,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Anger, C.T.","contributorId":101917,"corporation":false,"usgs":true,"family":"Anger","given":"C.T.","email":"","affiliations":[],"preferred":false,"id":443443,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Green, J.A.","contributorId":75753,"corporation":false,"usgs":true,"family":"Green","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":443440,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Runkel, Anthony C.","contributorId":63186,"corporation":false,"usgs":true,"family":"Runkel","given":"Anthony","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":443438,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Alexander, E.C.","contributorId":70377,"corporation":false,"usgs":true,"family":"Alexander","given":"E.C.","affiliations":[],"preferred":false,"id":443439,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70033979,"text":"70033979 - 2011 - Seismic hazard assessment: Issues and alternatives","interactions":[],"lastModifiedDate":"2012-03-12T17:21:47","indexId":"70033979","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3208,"text":"Pure and Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Seismic hazard assessment: Issues and alternatives","docAbstract":"Seismic hazard and risk are two very important concepts in engineering design and other policy considerations. Although seismic hazard and risk have often been used inter-changeably, they are fundamentally different. Furthermore, seismic risk is more important in engineering design and other policy considerations. Seismic hazard assessment is an effort by earth scientists to quantify seismic hazard and its associated uncertainty in time and space and to provide seismic hazard estimates for seismic risk assessment and other applications. Although seismic hazard assessment is more a scientific issue, it deserves special attention because of its significant implication to society. Two approaches, probabilistic seismic hazard analysis (PSHA) and deterministic seismic hazard analysis (DSHA), are commonly used for seismic hazard assessment. Although PSHA has been pro-claimed as the best approach for seismic hazard assessment, it is scientifically flawed (i.e., the physics and mathematics that PSHA is based on are not valid). Use of PSHA could lead to either unsafe or overly conservative engineering design or public policy, each of which has dire consequences to society. On the other hand, DSHA is a viable approach for seismic hazard assessment even though it has been labeled as unreliable. The biggest drawback of DSHA is that the temporal characteristics (i.e., earthquake frequency of occurrence and the associated uncertainty) are often neglected. An alternative, seismic hazard analysis (SHA), utilizes earthquake science and statistics directly and provides a seismic hazard estimate that can be readily used for seismic risk assessment and other applications. ?? 2010 Springer Basel AG.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Pure and Applied Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00024-010-0148-3","issn":"00334553","usgsCitation":"Wang, Z., 2011, Seismic hazard assessment: Issues and alternatives: Pure and Applied Geophysics, v. 168, no. 1-2, p. 11-25, https://doi.org/10.1007/s00024-010-0148-3.","startPage":"11","endPage":"25","numberOfPages":"15","costCenters":[],"links":[{"id":216985,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00024-010-0148-3"},{"id":244892,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"168","issue":"1-2","noUsgsAuthors":false,"publicationDate":"2010-05-11","publicationStatus":"PW","scienceBaseUri":"505b8b16e4b08c986b3175a6","contributors":{"authors":[{"text":"Wang, Z.","contributorId":67976,"corporation":false,"usgs":true,"family":"Wang","given":"Z.","affiliations":[],"preferred":false,"id":443487,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70033995,"text":"70033995 - 2011 - Comparative evaluation of molecular diagnostic tests for Nucleospora salmonis and prevalence in migrating juvenile salmonids from the Snake River, USA","interactions":[],"lastModifiedDate":"2012-12-30T19:19:43","indexId":"70033995","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2177,"text":"Journal of Aquatic Animal Health","active":true,"publicationSubtype":{"id":10}},"title":"Comparative evaluation of molecular diagnostic tests for Nucleospora salmonis and prevalence in migrating juvenile salmonids from the Snake River, USA","docAbstract":"Nucleospora salmonis is an intranuclear microsporidian that primarily infects lymphoblast cells and contributes to chronic lymphoblastosis and a leukemia-like condition in a range of salmonid species. The primary goal of this study was to evaluate the prevalence of N. salmonis in out-migrating juvenile hatchery and wild Chinook salmon Oncorhynchus tshawytscha and steelhead O. mykiss from the Snake River in the U.S. Pacific Northwest. To achieve this goal, we first addressed the following concerns about current molecular diagnostic tests for N. salmonis: (1) nonspecific amplification patterns by the published nested polymerase chain reaction (nPCR) test, (2) incomplete validation of the published quantitative PCR (qPCR) test, and (3) whether N. salmonis can be detected reliably from nonlethal samples. Here, we present an optimized nPCR protocol that eliminates nonspecific amplification. During validation of the published qPCR test, our laboratory developed a second qPCR test that targeted a different gene sequence and used different probe chemistry for comparison purposes. We simultaneously evaluated the two different qPCR tests for N. salmonis and found that both assays were highly specific, sensitive, and repeatable. The nPCR and qPCR tests had good overall concordance when DNA samples derived from both apparently healthy and clinically diseased hatchery rainbow trout were tested. Finally, we demonstrated that gill snips were a suitable tissue for nonlethal detection of N. salmonis DNA in juvenile salmonids. Monitoring of juvenile salmonid fish in the Snake River over a 3-year period revealed low prevalence of N. salmonis in hatchery and wild Chinook salmon and wild steelhead but significantly higher prevalence in hatchery-derived steelhead. Routine monitoring of N. salmonis is not performed for all hatchery steelhead populations. At present, the possible contribution of this pathogen to delayed mortality of steelhead has not been determined.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Aquatic Animal Health","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Taylor & Francis","publisherLocation":"London, UK","doi":"10.1080/08997659.2011.559418","issn":"08997659","usgsCitation":"Badil, S., Elliott, D.G., Kurobe, T., Hedrick, R.P., Clemens, K., Blair, M., and Purcell, M., 2011, Comparative evaluation of molecular diagnostic tests for Nucleospora salmonis and prevalence in migrating juvenile salmonids from the Snake River, USA: Journal of Aquatic Animal Health, v. 23, no. 1, p. 19-29, https://doi.org/10.1080/08997659.2011.559418.","productDescription":"11 p.","startPage":"19","endPage":"29","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":244665,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216776,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/08997659.2011.559418"}],"volume":"23","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-03-09","publicationStatus":"PW","scienceBaseUri":"5059f80fe4b0c8380cd4ce67","contributors":{"authors":[{"text":"Badil, Samantha","contributorId":63241,"corporation":false,"usgs":true,"family":"Badil","given":"Samantha","affiliations":[],"preferred":false,"id":443560,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elliott, Diane G. 0000-0002-4809-6692 dgelliott@usgs.gov","orcid":"https://orcid.org/0000-0002-4809-6692","contributorId":2947,"corporation":false,"usgs":true,"family":"Elliott","given":"Diane","email":"dgelliott@usgs.gov","middleInitial":"G.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":443558,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kurobe, Tomofumi","contributorId":97741,"corporation":false,"usgs":true,"family":"Kurobe","given":"Tomofumi","affiliations":[],"preferred":false,"id":443563,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hedrick, Ronald P.","contributorId":86999,"corporation":false,"usgs":true,"family":"Hedrick","given":"Ronald","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":443562,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Clemens, Kathy","contributorId":78172,"corporation":false,"usgs":true,"family":"Clemens","given":"Kathy","email":"","affiliations":[],"preferred":false,"id":443561,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Blair, Marilyn","contributorId":44388,"corporation":false,"usgs":true,"family":"Blair","given":"Marilyn","affiliations":[],"preferred":false,"id":443559,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Purcell, Maureen K.","contributorId":104214,"corporation":false,"usgs":true,"family":"Purcell","given":"Maureen K.","affiliations":[],"preferred":false,"id":443564,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70034009,"text":"70034009 - 2011 - Intercolony variation in growth of black brant goslings on the Yukon-Kuskokwim Delta, Alaska","interactions":[],"lastModifiedDate":"2018-05-14T13:30:40","indexId":"70034009","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Intercolony variation in growth of black brant goslings on the Yukon-Kuskokwim Delta, Alaska","docAbstract":"Recent declines in black brant (Branta bernicla nigricans) are likely the result of low recruitment. In geese, recruitment is strongly affected by habitat conditions experienced by broods because gosling growth rates are indicative of forage conditions during brood rearing and strongly influence future survival and productivity. In 2006–2008, we studied gosling growth at 3 of the 4 major colonies on the Yukon‐Kuskokwim Delta, Alaska. Estimates of age‐adjusted gosling mass at the 2 southern colonies (approx. 30% of the world population of breeding black brant) was low (gosling mass at 30.5 days ranged 346.7 ± 42.5 g to 627.1 ± 15.9 g) in comparison to a third colony (gosling mass at 30.5 days ranged 640.0 ± 8.3 g to 821.6 ± 13.6 g) and to most previous estimates of age‐adjusted mass of brant goslings. Thus, our results are consistent with the hypothesis that poor gosling growth is negatively influencing the brant population. There are 2 non‐mutually exclusive explanations for the apparent growth rates we observed. First, the population decline may have been caused by density‐independent factors and habitat capacity has declined along with the population as a consequence of the unique foraging feedback between brant and their grazing habitats. Alternatively, a reduction in habitat capacity, as a result of changes to the grazing system, may have negatively influenced gosling growth, which is contributing to the overall long‐term population decline. We found support for both explanations. For colonies over habitat capacity we recommend management to enhance foraging habitat, whereas for colonies below habitat capacity we recommend management to increase nesting productivity.
","language":"English","publisher":"Wiley","doi":"10.1002/jwmg.24","issn":"0022541X","usgsCitation":"Fondell, T., Flint, P.L., Sedinger, J., Nicolai, C., and Schamber, J., 2011, Intercolony variation in growth of black brant goslings on the Yukon-Kuskokwim Delta, Alaska: Journal of Wildlife Management, v. 75, no. 1, p. 101-108, https://doi.org/10.1002/jwmg.24.","productDescription":"8 p.","startPage":"101","endPage":"108","numberOfPages":"8","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":244384,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216507,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/jwmg.24"}],"volume":"75","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-31","publicationStatus":"PW","scienceBaseUri":"505a3cf0e4b0c8380cd63182","contributors":{"authors":[{"text":"Fondell, T.F.","contributorId":11154,"corporation":false,"usgs":true,"family":"Fondell","given":"T.F.","email":"","affiliations":[],"preferred":false,"id":443630,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":443632,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sedinger, J.S.","contributorId":75471,"corporation":false,"usgs":true,"family":"Sedinger","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":443633,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nicolai, C.A.","contributorId":17420,"corporation":false,"usgs":true,"family":"Nicolai","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":443631,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schamber, J.L.","contributorId":92012,"corporation":false,"usgs":true,"family":"Schamber","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":443634,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70034016,"text":"70034016 - 2011 - Determinants of fish assemblage structure in Northwestern Great Plains streams","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034016","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Determinants of fish assemblage structure in Northwestern Great Plains streams","docAbstract":"Prairie streams are known for their harsh and stochastic physical conditions, and the fish assemblages therein have been shown to be temporally variable. We assessed the spatial and temporal variation in fish assemblage structure in five intermittent, adventitious northwestern Great Plains streams representing a gradient of watershed areas. Fish assemblages and abiotic conditions varied more spatially than temporally. The most important variables explaining fish assemblage structure were longitudinal position and the proportion of fine substrates. The proportion of fine substrates increased proceeding upstream, approaching 100% in all five streams, and species richness declined upstream with increasing fine substrates. High levels of fine substrate in the upper reaches appeared to limit the distribution of obligate lithophilic fish species to reaches further downstream. Species richness and substrates were similar among all five streams at the lowermost and uppermost sites. However, in the middle reaches, species richness increased, the amount of fine substrate decreased, and connectivity increased as watershed area increased. Season and some dimensions of habitat (including thalweg depth, absolute distance to the main-stem river, and watershed size) were not essential in explaining the variation in fish assemblages. Fish species richness varied more temporally than overall fish assemblage structure did because common species were consistently abundant across seasons, whereas rare species were sometimes absent or perhaps not detected by sampling. The similarity in our results among five streams varying in watershed size and those from other studies supports the generalization that spatial variation exceeds temporal variation in the fish assemblages of prairie and warmwater streams. Furthermore, given longitudinal position, substrate, and stream size, general predictions regarding fish assemblage structure and function in prairie streams are possible. ?? American Fisheries Society 2011.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/00028487.2011.564069","issn":"00028487","usgsCitation":"Mullen, J., Bramblett, R., Guy, C., Zale, A., and Roberts, D., 2011, Determinants of fish assemblage structure in Northwestern Great Plains streams: Transactions of the American Fisheries Society, v. 140, no. 2, p. 271-281, https://doi.org/10.1080/00028487.2011.564069.","startPage":"271","endPage":"281","numberOfPages":"11","costCenters":[],"links":[{"id":216598,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/00028487.2011.564069"},{"id":244478,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"140","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-03-24","publicationStatus":"PW","scienceBaseUri":"5059ff82e4b0c8380cd4f21b","contributors":{"authors":[{"text":"Mullen, J.A.","contributorId":95302,"corporation":false,"usgs":true,"family":"Mullen","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":443664,"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":443663,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Guy, C.S.","contributorId":59160,"corporation":false,"usgs":true,"family":"Guy","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":443662,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zale, A.V.","contributorId":15793,"corporation":false,"usgs":true,"family":"Zale","given":"A.V.","affiliations":[],"preferred":false,"id":443661,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Roberts, D.W.","contributorId":11828,"corporation":false,"usgs":true,"family":"Roberts","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":443660,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70034018,"text":"70034018 - 2011 - Labile Fe(II) concentrations in the Atlantic sector of the Southern Ocean along a transect from the subtropical domain to the Weddell Sea Gyre","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70034018","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1012,"text":"Biogeosciences Discussions","active":true,"publicationSubtype":{"id":10}},"title":"Labile Fe(II) concentrations in the Atlantic sector of the Southern Ocean along a transect from the subtropical domain to the Weddell Sea Gyre","docAbstract":"Labile Fe(II) distributions were investigated in the Sub-Tropical South Atlantic and the Southern Ocean during the BONUS-GoodHope cruise from 34 to 57?? S (February-March 2008). Concentrations ranged from below the detection limit (0.009 nM) to values as high as 0.125 nM. In the surface mixed layer, labile Fe(II) concentrations were always higher than the detection limit, with values higher than 0.060 nM south of 47?? S, representing between 39% and 63% of dissolved Fe (DFe). Biological production was evidenced. At intermediate depth, local maxima were observed, with the highest values in the Sub-Tropical domain at around 200 m, and represented more than 70% of DFe. Remineralization processes were likely responsible for those sub-surface maxima. Below 1500 m, concentrations were close to or below the detection limit, except at two stations (at the vicinity of the Agulhas ridge and in the north of the Weddell Sea Gyre) where values remained as high as ???0.030-0.050 nM. Hydrothermal or sediment inputs may provide Fe(II) to these deep waters. Fe(II) half life times (t1/2) at 4 ??C were measured in the upper and deep waters and ranged from 2.9 to 11.3 min, and from 10.0 to 72.3 min, respectively. Measured values compared quite well in the upper waters with theoretical values from two published models, but not in the deep waters. This may be due to the lack of knowledge for some parameters in the models and/or to organic complexation of Fe(II) that impact its oxidation rates. This study helped to considerably increase the Fe(II) data set in the Ocean and to better understand the Fe redox cycle. ?? 2011 Author(s).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biogeosciences Discussions","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.5194/bgd-8-4163-2011","issn":"18106277","usgsCitation":"Sarthou, G., Bucciarelli, E., Chever, F., Hansard, S., Gonzalez-Davila, M., Santana-Casiano, J.M., Planchon, F., and Speich, S., 2011, Labile Fe(II) concentrations in the Atlantic sector of the Southern Ocean along a transect from the subtropical domain to the Weddell Sea Gyre: Biogeosciences Discussions, v. 8, no. 2, p. 4163-4208, https://doi.org/10.5194/bgd-8-4163-2011.","startPage":"4163","endPage":"4208","numberOfPages":"46","costCenters":[],"links":[{"id":475396,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/bgd-8-4163-2011","text":"Publisher Index Page"},{"id":216628,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.5194/bgd-8-4163-2011"},{"id":244509,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a40f7e4b0c8380cd651bc","contributors":{"authors":[{"text":"Sarthou, G.","contributorId":62434,"corporation":false,"usgs":true,"family":"Sarthou","given":"G.","email":"","affiliations":[],"preferred":false,"id":443677,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bucciarelli, E.","contributorId":49631,"corporation":false,"usgs":true,"family":"Bucciarelli","given":"E.","email":"","affiliations":[],"preferred":false,"id":443675,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chever, F.","contributorId":44383,"corporation":false,"usgs":true,"family":"Chever","given":"F.","email":"","affiliations":[],"preferred":false,"id":443674,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hansard, S.P.","contributorId":19391,"corporation":false,"usgs":true,"family":"Hansard","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":443672,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gonzalez-Davila, M.","contributorId":7532,"corporation":false,"usgs":true,"family":"Gonzalez-Davila","given":"M.","email":"","affiliations":[],"preferred":false,"id":443671,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Santana-Casiano, J. M.","contributorId":36386,"corporation":false,"usgs":true,"family":"Santana-Casiano","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":443673,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Planchon, F.","contributorId":50755,"corporation":false,"usgs":true,"family":"Planchon","given":"F.","email":"","affiliations":[],"preferred":false,"id":443676,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Speich, S.","contributorId":69816,"corporation":false,"usgs":true,"family":"Speich","given":"S.","email":"","affiliations":[],"preferred":false,"id":443678,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70034020,"text":"70034020 - 2011 - Spatiotemporal distribution and population characteristicsof a nonnative lake trout population, with implications for suppression","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70034020","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","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":"Spatiotemporal distribution and population characteristicsof a nonnative lake trout population, with implications for suppression","docAbstract":"We evaluated the distribution and population characteristics of nonnative lake trout Salvelinus namaycush in Lake McDonald,Glacier National Park,Montana, to provide biological data in support of a potential suppression program. Using ultrasonic telemetry, we identified spatial and temporal distribution patterns by tracking 36 adult lake trout (1,137 relocations). Lake trout rarely occupied depths greater than 30 m and were commonly located in the upper hypolimnion directly below the metalimnion during thermal stratification. After breakdown of themetalimnion in the fall, lake trout primarily aggregated at two spawning sites. Lake trout population characteristics were similar to those of populations within the species' native range. However, lake trout in Lake McDonald exhibited lower total annual mortality (13.2%), latermaturity (age 12 formales, age 15 for females), lower body condition, and slower growth than are typically observed in the southern extent of their range. These results will be useful in determining where to target suppression activities (e.g., gillnetting, trap-netting, or electrofishing) and in evaluating responses to suppression efforts. Similar evaluations of lake trout distribution patterns and population characteristics are recommended to increase the likelihood that suppression programs will succeed. ?? American Fisheries Society 2011.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/02755947.2011.562765","issn":"02755947","usgsCitation":"Dux, A., Guy, C., and Fredenberg, W., 2011, Spatiotemporal distribution and population characteristicsof a nonnative lake trout population, with implications for suppression: North American Journal of Fisheries Management, v. 31, no. 2, p. 187-196, https://doi.org/10.1080/02755947.2011.562765.","startPage":"187","endPage":"196","numberOfPages":"10","costCenters":[],"links":[{"id":216655,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/02755947.2011.562765"},{"id":244539,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-04-12","publicationStatus":"PW","scienceBaseUri":"505b94c9e4b08c986b31ac4d","contributors":{"authors":[{"text":"Dux, A.M.","contributorId":74598,"corporation":false,"usgs":true,"family":"Dux","given":"A.M.","affiliations":[],"preferred":false,"id":443683,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Guy, C.S.","contributorId":59160,"corporation":false,"usgs":true,"family":"Guy","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":443682,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fredenberg, W.A.","contributorId":53196,"corporation":false,"usgs":true,"family":"Fredenberg","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":443681,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70034022,"text":"70034022 - 2011 - A conduit dilation model of methane venting from lake sediments","interactions":[],"lastModifiedDate":"2013-04-04T10:58:14","indexId":"70034022","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"A conduit dilation model of methane venting from lake sediments","docAbstract":"Methane is a potent greenhouse gas, but its effects on Earth's climate remain poorly constrained, in part due to uncertainties in global methane fluxes to the atmosphere. An important source of atmospheric methane is the methane generated in organic-rich sediments underlying surface water bodies, including lakes, wetlands, and the ocean. The fraction of the methane that reaches the atmosphere depends critically on the mode and spatiotemporal characteristics of free-gas venting from the underlying sediments. Here we propose that methane transport in lake sediments is controlled by dynamic conduits, which dilate and release gas as the falling hydrostatic pressure reduces the effective stress below the tensile strength of the sediments. We test our model against a four-month record of hydrostatic load and methane flux in Upper Mystic Lake, Mass., USA, and show that it captures the complex episodicity of methane ebullition. Our quantitative conceptualization opens the door to integrated modeling of methane transport to constrain global methane release from lakes and other shallow-water, organic-rich sediment systems, and to assess its climate feedbacks.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","publisherLocation":"Hoboken, NJ","doi":"10.1029/2011GL046768","issn":"00948276","usgsCitation":"Scandella, B., Varadharajan, C., Hemond, H.F., Ruppel, C., and Juanes, R., 2011, A conduit dilation model of methane venting from lake sediments: Geophysical Research Letters, v. 38, no. 6, L06408, https://doi.org/10.1029/2011GL046768.","productDescription":"L06408","costCenters":[{"id":679,"text":"Woods Hole Field Center","active":false,"usgs":true}],"links":[{"id":475237,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/1721.1/66600","text":"External Repository"},{"id":216685,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011GL046768"},{"id":244570,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"38","issue":"6","noUsgsAuthors":false,"publicationDate":"2011-03-26","publicationStatus":"PW","scienceBaseUri":"5059e396e4b0c8380cd460f5","contributors":{"authors":[{"text":"Scandella, B.P.","contributorId":84595,"corporation":false,"usgs":true,"family":"Scandella","given":"B.P.","affiliations":[],"preferred":false,"id":443688,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Varadharajan, C.","contributorId":67328,"corporation":false,"usgs":true,"family":"Varadharajan","given":"C.","affiliations":[],"preferred":false,"id":443686,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hemond, Harold F.","contributorId":34673,"corporation":false,"usgs":false,"family":"Hemond","given":"Harold","email":"","middleInitial":"F.","affiliations":[{"id":13299,"text":"Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA","active":true,"usgs":false}],"preferred":false,"id":443685,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ruppel, C.","contributorId":82050,"corporation":false,"usgs":true,"family":"Ruppel","given":"C.","email":"","affiliations":[],"preferred":false,"id":443687,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Juanes, R.","contributorId":86595,"corporation":false,"usgs":true,"family":"Juanes","given":"R.","email":"","affiliations":[],"preferred":false,"id":443689,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70034067,"text":"70034067 - 2011 - Bird community response to filter strips in Maryland","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70034067","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Bird community response to filter strips in Maryland","docAbstract":"Filter strips are strips of herbaceous vegetation planted along agricultural field margins adjacent to streams or wetlands and are designed to intercept sediment, nutrients, and agrichemicals. Roughly 16,000 ha of filter strips have been established in Maryland through the United States Department of Agriculture's Conservation Reserve Enhancement Program. Filter strips often represent the only uncultivated herbaceous areas on farmland in Maryland and therefore may be important habitat for early-successional bird species. Most filter strips in Maryland are planted to either native warm-season grasses or cool-season grasses and range in width from 10.7 m to 91.4 m. From 2004 to 2007 we studied the breeding and wintering bird communities in filter strips adjacent to wooded edges and non-buffered field edges and the effect that grass type and width of filter strips had on bird community composition. We used 5 bird community metrics (total bird density, species richness, scrub-shrub bird density, grassland bird density, and total avian conservation value), species-specific densities, nest densities, and nest survival estimates to assess the habitat value of filter strips for birds. Breeding and wintering bird community metrics were greater in filter strips than in non-buffered field edges but did not differ between cool-season and warm-season grass filter strips. Most breeding bird community metrics were negatively related to the percent cover of orchardgrass (Dactylis glomerata) in ???1 yr. Breeding bird density was greater in narrow (<30 m) compared to wide (>60 m) filter strips. Our results suggest that narrow filter strips adjacent to wooded edges can provide habitat for many bird species but that wide filter strips provide better habitat for grassland birds, particularly obligate grassland species. If bird conservation is an objective, avoid planting orchardgrass in filter strips and reduce or eliminate orchardgrass from filter strips through management practices. Copyright ?? 2011 The Wildlife Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Wildlife Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/jwmg.3","issn":"0022541X","usgsCitation":"Blank, P., Dively, G., Gill, D., and Rewa, C., 2011, Bird community response to filter strips in Maryland: Journal of Wildlife Management, v. 75, no. 1, p. 116-125, https://doi.org/10.1002/jwmg.3.","startPage":"116","endPage":"125","numberOfPages":"10","costCenters":[],"links":[{"id":244735,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216839,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/jwmg.3"}],"volume":"75","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-31","publicationStatus":"PW","scienceBaseUri":"5059f1abe4b0c8380cd4ad8d","contributors":{"authors":[{"text":"Blank, P.J.","contributorId":22176,"corporation":false,"usgs":true,"family":"Blank","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":443909,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dively, G.P.","contributorId":18604,"corporation":false,"usgs":true,"family":"Dively","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":443908,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gill, D.E.","contributorId":104735,"corporation":false,"usgs":true,"family":"Gill","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":443911,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rewa, C.A.","contributorId":60884,"corporation":false,"usgs":true,"family":"Rewa","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":443910,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70034070,"text":"70034070 - 2011 - Viruses and bacteria in karst and fractured rock aquifers in east Tennessee, USA","interactions":[],"lastModifiedDate":"2017-05-04T11:00:49","indexId":"70034070","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","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":"Viruses and bacteria in karst and fractured rock aquifers in east Tennessee, USA","docAbstract":"A survey of enteric viruses and indicator bacteria was carried out in eight community water supply sources (four wells and four springs) in East Tennessee. Seven sites derived their water from carbonate aquifers and one from fractured sandstone. Four of the sites were deemed \"low-risk\" based on prior monitoring of fecal indicators and factors such as presence of thick layers of overlying sediments. The remaining sites were deemed \"high-risk.\" Enteric viruses (enterovirus and reovirus) were detected by cell culture at least once in seven of the eight wells or springs including all but one of the four low-risk sites. Viral RNA, however, was not detected in any of the samples by reverse transcription-polymerase chain reaction. Conventional indicators of microbial contamination (Escherichia coli and total coliform bacteria) were detected together with culturable viruses in seven of nine virus positive samples. Bacteroides, an alternative fecal indicator which has not previously been used in groundwater investigations, was also detected in all but one of the samples containing E. coli or total coliform bacteria, as well as in one sample where viruses were present in the absence of other bacterial indicators. The study highlights some of the challenges involved in surveys of virus occurrence and indicates that culturable enteric viruses in East Tennessee karst aquifers may be more widespread than previously observed in studies of karst aquifers in Pennsylvania (8%), the Ozark region of Missouri (< 1%), or several other states covered in a national microbial water quality survey conducted by the U.S. Environmental Protection Agency (43%). Copyright ?? 2010 The Author(s). Journal compilation ?? 2010 National Ground Water Association.
","largerWorkTitle":"Ground Water","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.2010.00698.x","issn":"0017467X","usgsCitation":"Johnson, T., McKay, L., Layton, A., Jones, S., Johnson, G., Cashdollar, J., Dahling, D., Villegas, L., Fout, G., Williams, D., and Sayler, G., 2011, Viruses and bacteria in karst and fractured rock aquifers in east Tennessee, USA: Ground Water, v. 49, no. 1, p. 98-110, https://doi.org/10.1111/j.1745-6584.2010.00698.x.","productDescription":"13 p.","startPage":"98","endPage":"110","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-012916","costCenters":[],"links":[{"id":244800,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216901,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2010.00698.x"}],"volume":"49","issue":"1","noUsgsAuthors":false,"publicationDate":"2010-12-22","publicationStatus":"PW","scienceBaseUri":"505bc27fe4b08c986b32ab98","contributors":{"authors":[{"text":"Johnson, T.B.","contributorId":21490,"corporation":false,"usgs":true,"family":"Johnson","given":"T.B.","email":"","affiliations":[],"preferred":false,"id":443920,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKay, L.D.","contributorId":10185,"corporation":false,"usgs":true,"family":"McKay","given":"L.D.","email":"","affiliations":[],"preferred":false,"id":443917,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Layton, A.C.","contributorId":18205,"corporation":false,"usgs":true,"family":"Layton","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":443919,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jones, S.W.","contributorId":102299,"corporation":false,"usgs":true,"family":"Jones","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":443927,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, G.C.","contributorId":14450,"corporation":false,"usgs":true,"family":"Johnson","given":"G.C.","email":"","affiliations":[],"preferred":false,"id":443918,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cashdollar, J.L.","contributorId":54043,"corporation":false,"usgs":true,"family":"Cashdollar","given":"J.L.","affiliations":[],"preferred":false,"id":443923,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Dahling, D.R.","contributorId":43163,"corporation":false,"usgs":true,"family":"Dahling","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":443922,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Villegas, L.F.","contributorId":34747,"corporation":false,"usgs":true,"family":"Villegas","given":"L.F.","email":"","affiliations":[],"preferred":false,"id":443921,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Fout, G.S.","contributorId":88146,"corporation":false,"usgs":true,"family":"Fout","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":443926,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Williams, D.E.","contributorId":67179,"corporation":false,"usgs":true,"family":"Williams","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":443924,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Sayler, G.","contributorId":72231,"corporation":false,"usgs":true,"family":"Sayler","given":"G.","email":"","affiliations":[],"preferred":false,"id":443925,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70034071,"text":"70034071 - 2011 - Near-surface shear-wave velocity measurements in unlithified sediment","interactions":[],"lastModifiedDate":"2012-03-12T17:21:43","indexId":"70034071","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3317,"text":"SEG Technical Program Expanded Abstracts","active":true,"publicationSubtype":{"id":10}},"title":"Near-surface shear-wave velocity measurements in unlithified sediment","docAbstract":"S-wave velocity can be directly correlated to material stiffness and lithology making it a valuable physical property that has found uses in construction, engineering, and environmental projects. This study compares different methods for measuring S-wave velocities, investigating and identifying the differences among the methods' results, and prioritizing the different methods for optimal S-wave use at the U. S. Army's Yuma Proving Grounds YPG. Multichannel Analysis of Surface Waves MASW and S-wave tomography were used to generate S-wave velocity profiles. Each method has advantages and disadvantages. A strong signal-to-noise ratio at the study site gives the MASW method promising resolution. S-wave first arrivals are picked on impulsive sledgehammer data which were then used for the tomography process. Three-component downhole seismic data were collected in-line with a locking geophone, providing ground truth to compare the data and to draw conclusions about the validity of each data set. Results from these S-wave measurement techniques are compared with borehole seismic data and with lithology data from continuous samples to help ascertain the accuracy, and therefore applicability, of each method. This study helps to select the best methods for obtaining S-wave velocities for media much like those found in unconsolidated sediments at YPG. ?? 2011 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"SEG Technical Program Expanded Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.3627467","issn":"10523812","usgsCitation":"Richards, B., Steeples, D., Miller, R., Ivanov, J., Peterie, S., Sloan, S., and McKenna, J., 2011, Near-surface shear-wave velocity measurements in unlithified sediment: SEG Technical Program Expanded Abstracts, v. 30, no. 1, p. 1416-1420, https://doi.org/10.1190/1.3627467.","startPage":"1416","endPage":"1420","numberOfPages":"5","costCenters":[],"links":[{"id":244801,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216902,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.3627467"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-05-25","publicationStatus":"PW","scienceBaseUri":"505a6409e4b0c8380cd72833","contributors":{"authors":[{"text":"Richards, B.T.","contributorId":92893,"corporation":false,"usgs":true,"family":"Richards","given":"B.T.","email":"","affiliations":[],"preferred":false,"id":443931,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Steeples, D.","contributorId":30422,"corporation":false,"usgs":true,"family":"Steeples","given":"D.","email":"","affiliations":[],"preferred":false,"id":443929,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miller, R.","contributorId":19118,"corporation":false,"usgs":true,"family":"Miller","given":"R.","affiliations":[],"preferred":false,"id":443928,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ivanov, J.","contributorId":107068,"corporation":false,"usgs":true,"family":"Ivanov","given":"J.","email":"","affiliations":[],"preferred":false,"id":443933,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Peterie, S.","contributorId":67753,"corporation":false,"usgs":true,"family":"Peterie","given":"S.","email":"","affiliations":[],"preferred":false,"id":443930,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sloan, S.D.","contributorId":101492,"corporation":false,"usgs":true,"family":"Sloan","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":443932,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McKenna, J.R.","contributorId":108336,"corporation":false,"usgs":true,"family":"McKenna","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":443934,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70034623,"text":"70034623 - 2011 - Apogean-perigean signals encoded in tidal flats at the fluvio-estuarine transition of Glacier Creek, Turnagain Arm, Alaska; implications for ancient tidal rhythmites","interactions":[],"lastModifiedDate":"2021-04-14T20:52:14.238981","indexId":"70034623","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3369,"text":"Sedimentology","active":true,"publicationSubtype":{"id":10}},"title":"Apogean-perigean signals encoded in tidal flats at the fluvio-estuarine transition of Glacier Creek, Turnagain Arm, Alaska; implications for ancient tidal rhythmites","docAbstract":"Turnagain Arm is a macrotidal fjord‐style estuary. Glacier Creek is a small, glacially fed stream which enters the estuary tangentially near Girdwood, Alaska. Trenches and daily sedimentation measurements were made in a mudflat along the fluvio–estuarine transition of Glacier Creek during several summers since 2003. Each year, the flats appear to erode during the winter and then accrete vertically in the spring and summer. In each of the years studied, tidal laminae in vertically thickening and thinning laminae bundles were deposited by twice daily tides in neap–spring tidal cycles. In 2004, bundles of thickening and thinning laminae couplets were noted in trenches cut into the flats. Five laminae bundles alternated between thicker and thinner bundles, corresponding to the perigean (high spring) and apogean (low spring) tides. Well‐preserved apogean–perigean cycles have rarely been documented in modern tidal flat sediments. At this location, vertical accretion of tidal rhythmites with well‐developed neap–spring cyclicity is possible because of the near‐complete removal of the flat from the previous year, which creates accommodation space for vertical accretion without significant reworking. Macrotidal conditions, no reworking by infaunal invertebrates, protection from the main tidal channel by a gravel bar and protection from storm waves and fluvial erosion by a recess in the sedge marsh that surrounds the flats all aid in preservation of rhythmites during aggradation. The position of the flats relative to tidal range allows for accumulation of complete spring cycles and incomplete neap cycles. In the summer of 2004, apogee and perigee were closely aligned with the new and full moons, resulting in successive strong perigee and apogee tides which probably aided in the accumulation of successive thick–thin spring cycles encoding the apogean and perigean tidal cycle. The apogean–perigean signal was not observed in subsequent years.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-3091.2010.01220.x","issn":"00370746","usgsCitation":"Greb, S., Archer, A., and Deboer, D., 2011, Apogean-perigean signals encoded in tidal flats at the fluvio-estuarine transition of Glacier Creek, Turnagain Arm, Alaska; implications for ancient tidal rhythmites: Sedimentology, v. 58, no. 6, p. 1434-1452, https://doi.org/10.1111/j.1365-3091.2010.01220.x.","productDescription":"19 p.","startPage":"1434","endPage":"1452","costCenters":[],"links":[{"id":243377,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215565,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-3091.2010.01220.x"}],"country":"United States","state":"Alaska","otherGeospatial":"Glacier Creek, Turnagain Arm","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -152.29248046875,\n 60.09771842541544\n ],\n [\n -147.94189453125,\n 60.09771842541544\n ],\n [\n -147.94189453125,\n 62.155240711732425\n ],\n [\n -152.29248046875,\n 62.155240711732425\n ],\n [\n -152.29248046875,\n 60.09771842541544\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"58","issue":"6","noUsgsAuthors":false,"publicationDate":"2011-02-15","publicationStatus":"PW","scienceBaseUri":"5059ec72e4b0c8380cd49296","contributors":{"authors":[{"text":"Greb, S.F.","contributorId":48294,"corporation":false,"usgs":true,"family":"Greb","given":"S.F.","email":"","affiliations":[],"preferred":false,"id":446733,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Archer, A.W.","contributorId":8620,"corporation":false,"usgs":true,"family":"Archer","given":"A.W.","affiliations":[],"preferred":false,"id":446731,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Deboer, D.G.","contributorId":29658,"corporation":false,"usgs":true,"family":"Deboer","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":446732,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035899,"text":"70035899 - 2011 - Estimation of suspended-sediment concentration from total suspended solids and turbidity data for Kentucky, 1978-1995","interactions":[],"lastModifiedDate":"2021-02-08T19:41:13.40459","indexId":"70035899","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of suspended-sediment concentration from total suspended solids and turbidity data for Kentucky, 1978-1995","docAbstract":"Suspended sediment is a constituent of water quality that is monitored because of concerns about accelerated erosion, nonpoint contamination of water resources, and degradation of aquatic environments. In order to quantify the relationship among different sediment parameters for Kentucky streams, long‐term records were obtained from the National Water Information System of the U.S. Geological Survey. Suspended‐sediment concentration (SSC), the parameter traditionally measured and reported by the U.S. Geological Survey, was statistically compared to turbidity and total suspended solids (TSS), two parameters that are considered surrogate data. A linear regression of log‐transformed observations was used to estimate SSC from TSS; 72% of TSS observations were less than coincident SSC observations; however, the estimated SSC values were almost as likely to be overestimated as underestimated. The SSC‐turbidity relationship also used log‐transformed observations, but required a nonlinear, breakpoint regression that separated turbidity observations ≤6 nephelometric turbidity units. The slope for these low turbidity values was not significantly different than zero, indicating that low turbidity observations provide no real information about SSC; in the case of the Kentucky sediment record, this accounts for 30% of the turbidity observations.
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In this study, historic information for the entire Bay and recent results from the Tangier Sound region were evaluated to illustrate patterns of island erosion and habitat loss for 19 breeding species of waterbirds. Aerial imagery and field data collected in the nesting season were the primary sources of data. From 1993/1994 to 2007/2008, a group of 15 islands in Tangier Sound, Virginia were reduced by 21% in area, as most of their small dunes and associated vegetation and forest cover were lost to increased washovers. Concurrently, nesting American black ducks (Anas rubripes) declined by 66% , wading birds (herons-egrets) by 51%, gulls by 72%, common terns (Sterna hirundo) by 96% and black skimmers (Rynchops niger) by about 70% in this complex. The declines noted at the larger Bay-wide scale suggest that this study area maybe symptomatic of a systemic limitation of nesting habitat for these species. The island losses noted in the Chesapeake have also been noted in other Atlantic U.S. coastal states. Stabilization and/or restoration of at least some of the rapidly eroding islands at key coastal areas are critical to help sustain waterbird communities.
","language":"English","publisher":"Springer Link","doi":"10.1007/s11852-010-0119-y","issn":"14000350","usgsCitation":"Erwin, R., Brinker, D., Watts, B., Costanzo, G., and Morton, D., 2011, Islands at bay: Rising seas, eroding islands, and waterbird habitat loss in Chesapeake Bay (USA): Journal of Coastal Conservation, v. 15, no. 1, p. 51-60, https://doi.org/10.1007/s11852-010-0119-y.","productDescription":"10 p.","startPage":"51","endPage":"60","costCenters":[],"links":[{"id":244280,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216411,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11852-010-0119-y"}],"country":"United States","state":"Virginia","otherGeospatial":"Chesapeake Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -75.96633911132812,\n 37.70120736474139\n ],\n [\n -75.60653686523438,\n 37.70120736474139\n ],\n [\n -75.60653686523438,\n 37.98317483351337\n ],\n [\n -75.96633911132812,\n 37.98317483351337\n ],\n [\n -75.96633911132812,\n 37.70120736474139\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"15","issue":"1","noUsgsAuthors":false,"publicationDate":"2010-09-01","publicationStatus":"PW","scienceBaseUri":"505a3f39e4b0c8380cd6436d","contributors":{"authors":[{"text":"Erwin, R. 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Michael","affiliations":[],"preferred":false,"id":453013,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brinker, D.F.","contributorId":10523,"corporation":false,"usgs":true,"family":"Brinker","given":"D.F.","email":"","affiliations":[],"preferred":false,"id":453009,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Watts, B.D.","contributorId":54703,"corporation":false,"usgs":true,"family":"Watts","given":"B.D.","email":"","affiliations":[],"preferred":false,"id":453012,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Costanzo, G.R.","contributorId":17960,"corporation":false,"usgs":true,"family":"Costanzo","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":453010,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Morton, D.D.","contributorId":18298,"corporation":false,"usgs":true,"family":"Morton","given":"D.D.","email":"","affiliations":[],"preferred":false,"id":453011,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70034078,"text":"70034078 - 2011 - Ground deformation monitoring using small baseline DInSAR technique: A case study in Taiyuan City from 2003 to 2009","interactions":[],"lastModifiedDate":"2017-04-06T13:46:25","indexId":"70034078","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1234,"text":"Chinese Journal of Geophysics (Acta Geophysica Sinica)","active":true,"publicationSubtype":{"id":10}},"title":"Ground deformation monitoring using small baseline DInSAR technique: A case study in Taiyuan City from 2003 to 2009","docAbstract":"DInSAR technique based on time series of SAR images has been very popular to monitor ground stow deformation in recent years such as permanent scatterers (PS) method small baseline subsets (SBAS) method and coherent targets (CT) method. By taking advantage of PS method and CT method in this paper small baseline DTnSAR technique is used to investigate the ground deformation of Taiyuan City Shanxi Province from 2003 to 2009 by using 23 ENVISAT ASAR images. The experiment results demonstrate that: (1) during this period four significant subsidence centers have been developed in Taiyuan namely Xiayuan Wujiabu Xiaodian Sunjiazhai. The largest subsidence center is Sunjiazhai with an average subsidence rate of -77. 28 mm/a; (2) The subsidence of the old center Wanbolin has sHowed down. And the subsidence in the northern region has stopped and some areas even rebounded. (3) The change of subsidence centers indicates that the control measures of \"closing wells and reducing exploitation\" taken by the Taiyuan government has achieved initial effects. (4) The experiment results have been validated with leveling data and the acouracy is 2. 90 mm which shows that the small baseline DInSAR technique can be used to monitor urban ground deformation.","language":"Chinese","doi":"10.3969/j.issn.0001-5733.2011.03.006","issn":"00015733","usgsCitation":"Wu, H., Zhang, Y., Chen, X., Lu, T., Du, J., Sun, Z., and Sun, G., 2011, Ground deformation monitoring using small baseline DInSAR technique: A case study in Taiyuan City from 2003 to 2009: Chinese Journal of Geophysics (Acta Geophysica Sinica), v. 54, no. 3, p. 673-680, https://doi.org/10.3969/j.issn.0001-5733.2011.03.006.","productDescription":"8 p.","startPage":"673","endPage":"680","numberOfPages":"8","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":244419,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216542,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3969/j.issn.0001-5733.2011.03.006"}],"volume":"54","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2a93e4b0c8380cd5b2ad","contributors":{"authors":[{"text":"Wu, H.-A.","contributorId":17850,"corporation":false,"usgs":true,"family":"Wu","given":"H.-A.","email":"","affiliations":[],"preferred":false,"id":443968,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zhang, Y.-H.","contributorId":99799,"corporation":false,"usgs":true,"family":"Zhang","given":"Y.-H.","email":"","affiliations":[],"preferred":false,"id":443973,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chen, X.-Y.","contributorId":11449,"corporation":false,"usgs":true,"family":"Chen","given":"X.-Y.","email":"","affiliations":[],"preferred":false,"id":443967,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lu, T.","contributorId":20182,"corporation":false,"usgs":true,"family":"Lu","given":"T.","email":"","affiliations":[],"preferred":false,"id":443969,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Du, J.","contributorId":40044,"corporation":false,"usgs":true,"family":"Du","given":"J.","email":"","affiliations":[],"preferred":false,"id":443971,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sun, Z.-H.","contributorId":52428,"corporation":false,"usgs":true,"family":"Sun","given":"Z.-H.","email":"","affiliations":[],"preferred":false,"id":443972,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sun, G.-T.","contributorId":28829,"corporation":false,"usgs":true,"family":"Sun","given":"G.-T.","email":"","affiliations":[],"preferred":false,"id":443970,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70034081,"text":"70034081 - 2011 - Terrestrial sensitivity to abrupt cooling recorded by aeolian activity in northwest Ohio, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034081","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Terrestrial sensitivity to abrupt cooling recorded by aeolian activity in northwest Ohio, USA","docAbstract":"Optically stimulated luminescence dated sand dunes and Pleistocene beach ridges in northwest Ohio are used to reconstruct landscape modification more than 5000. yr after deglaciation. Four of the OSL ages (13.3-11.1. ka) cluster around the Younger Dryas cold event, five ages (10.8-8.2. ka) cluster around the Preboreal, one young age (0.9-0.7. ka) records more recent aeolian activity, and one age of 15.1-13.1. ka dates a barrier spit in Lake Warren. In northwest Ohio, both landscape instability recorded by aeolian activity and a vegetation response recorded by pollen are coeval with the Younger Dryas. However, the climate conditions during the Preboreal resulting in aeolian activity are not recorded in the available pollen records. From this, we conclude that aeolian dunes and surfaces susceptible to deflation are sensitive to cooler, drier episodes of climate and can complement pollen data. Younger Dryas and Preboreal aged aeolian activity in northwestern Ohio coincides with aeolian records elsewhere in the Great Lakes region east of the prairie-forest ecotone. ?? 2011 University of Washington.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.yqres.2011.01.009","issn":"00335894","usgsCitation":"Campbell, M., Fisher, T., and Goble, R., 2011, Terrestrial sensitivity to abrupt cooling recorded by aeolian activity in northwest Ohio, USA: Quaternary Research, v. 75, no. 3, p. 411-416, https://doi.org/10.1016/j.yqres.2011.01.009.","startPage":"411","endPage":"416","numberOfPages":"6","costCenters":[],"links":[{"id":244452,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216574,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.yqres.2011.01.009"}],"volume":"75","issue":"3","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505ba563e4b08c986b3209f6","contributors":{"authors":[{"text":"Campbell, M.C.","contributorId":97348,"corporation":false,"usgs":true,"family":"Campbell","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":443989,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fisher, T.G.","contributorId":67754,"corporation":false,"usgs":true,"family":"Fisher","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":443988,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goble, R.J.","contributorId":21265,"corporation":false,"usgs":true,"family":"Goble","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":443987,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70034083,"text":"70034083 - 2011 - Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States","interactions":[],"lastModifiedDate":"2013-05-30T12:38:09","indexId":"70034083","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States","docAbstract":"At the heart of the conundrum of seismogenesis in the New Madrid Seismic Zone is the apparently substantial discrepancy between low strain rate and high recent seismic moment release. In this study we revisit the magnitudes of the four principal 1811–1812 earthquakes using intensity values determined from individual assessments from four experts. Using these values and the grid search method of Bakun and Wentworth (1997), we estimate magnitudes around 7.0 for all four events, values that are significantly lower than previously published magnitude estimates based on macroseismic intensities. We further show that the strain rate predicted from postglacial rebound is sufficient to produce a sequence with the moment release of one Mmax6.8 every 500 years, a rate that is much lower than previous estimates of late Holocene moment release. However, Mw6.8 is at the low end of the uncertainty range inferred from analysis of intensities for the largest 1811–1812 event. We show that Mw6.8 is also a reasonable value for the largest main shock given a plausible rupture scenario. One can also construct a range of consistent models that permit a somewhat higher Mmax, with a longer average recurrence rate. It is thus possible to reconcile predicted strain and seismic moment release rates with alternative models: one in which 1811–1812 sequences occur every 500 years, with the largest events being Mmax∼6.8, or one in which sequences occur, on average, less frequently, with Mmax of ∼7.0. Both models predict that the late Holocene rate of activity will continue for the next few to 10 thousand years.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1029/2010JB007783","issn":"01480227","usgsCitation":"Hough, S., and Page, M., 2011, Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States: Journal of Geophysical Research B: Solid Earth, v. 116, no. 3, https://doi.org/10.1029/2010JB007783.","costCenters":[{"id":151,"text":"California Field Office","active":false,"usgs":true}],"links":[{"id":475250,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2010jb007783","text":"Publisher Index Page"},{"id":216602,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2010JB007783"},{"id":244482,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"New Madrid Seismic Zone","volume":"116","issue":"3","noUsgsAuthors":false,"publicationDate":"2011-03-25","publicationStatus":"PW","scienceBaseUri":"505bb5b0e4b08c986b32681f","contributors":{"authors":[{"text":"Hough, S. E. 0000-0002-5980-2986","orcid":"https://orcid.org/0000-0002-5980-2986","contributorId":7316,"corporation":false,"usgs":true,"family":"Hough","given":"S. E.","affiliations":[],"preferred":false,"id":443993,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Page, M.","contributorId":67649,"corporation":false,"usgs":true,"family":"Page","given":"M.","email":"","affiliations":[],"preferred":false,"id":443994,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}