{"pageNumber":"3270","pageRowStart":"81725","pageSize":"25","recordCount":184904,"records":[{"id":70023109,"text":"70023109 - 2000 - Predictive modelling of flow in a two-dimensional intermediate-scale, heterogeneous porous media","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70023109","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Predictive modelling of flow in a two-dimensional intermediate-scale, heterogeneous porous media","docAbstract":"To better understand the role of sedimentary structures in flow through porous media, and to determine how small-scale laboratory-measured values of hydraulic conductivity relate to in situ values this work deterministically examines flow through simple, artificial structures constructed for a series of intermediate-scale (10 m long), two-dimensional, heterogeneous, laboratory experiments. Nonlinear regression was used to determine optimal values of in situ hydraulic conductivity, which were compared to laboratory-measured values. Despite explicit numerical representation of the heterogeneity, the optimized values were generally greater than the laboratory-measured values. Discrepancies between measured and optimal values varied depending on the sand sieve size, but their contribution to error in the predicted flow was fairly consistent for all sands. Results indicate that, even under these controlled circumstances, laboratory-measured values of hydraulic conductivity need to be applied to models cautiously.To better understand the role of sedimentary structures in flow through porous media, and to determine how small-scale laboratory-measured values of hydraulic conductivity relate to in situ values this work deterministically examines flow through simple, artificial structures constructed for a series of intermediate-scale (10 m long), two-dimensional, heterogeneous, laboratory experiments. Nonlinear regression was used to determine optimal values of in situ hydraulic conductivity, which were compared to laboratory-measured values. Despite explicit numerical representation of the heterogeneity, the optimized values were generally greater than the laboratory-measured values. Discrepancies between measured and optimal values varied depending on the sand sieve size, but their contribution to error in the predicted flow was fairly consistent for all sands. Results indicate that, even under these controlled circumstances, laboratory-measured values of hydraulic conductivity need to be applied to models cautiously.","largerWorkTitle":"IAHS-AISH Publication","conferenceTitle":"ModelCARE'99 Conference","conferenceDate":"20 September 1999 through 23 September 1999","conferenceLocation":"Zurich, Switz","language":"English","publisher":"IAHS","publisherLocation":"Houston, TX, United States","issn":"01447815","usgsCitation":"Barth, G.R., Hill, M.C., Illangasekare, T., and Rajaram, H., 2000, Predictive modelling of flow in a two-dimensional intermediate-scale, heterogeneous porous media, <i>in</i> IAHS-AISH Publication, no. 265, Zurich, Switz, 20 September 1999 through 23 September 1999, p. 265-271.","startPage":"265","endPage":"271","numberOfPages":"7","costCenters":[],"links":[{"id":233698,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"265","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8202e4b0c8380cd7b84f","contributors":{"authors":[{"text":"Barth, Gilbert R.","contributorId":15374,"corporation":false,"usgs":false,"family":"Barth","given":"Gilbert","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":396195,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hill, M. C.","contributorId":48993,"corporation":false,"usgs":true,"family":"Hill","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":396198,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Illangasekare, T.H.","contributorId":45847,"corporation":false,"usgs":true,"family":"Illangasekare","given":"T.H.","affiliations":[],"preferred":false,"id":396197,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rajaram, H.","contributorId":39547,"corporation":false,"usgs":true,"family":"Rajaram","given":"H.","affiliations":[],"preferred":false,"id":396196,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70023107,"text":"70023107 - 2000 - Late-glacial environmental changes south of the Wisconsinan terminal moraine in the Eastern United States","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70023107","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","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":"Late-glacial environmental changes south of the Wisconsinan terminal moraine in the Eastern United States","docAbstract":"Palynological analyses of two sediment cores, one 2.4 m long from northern Delaware, dated about 16,300 to 14,700 14C yr B.P., and one 1.8 m long from New Jersey just south of the Wisconsinan terminal moraine and dated about 13,600 to 12,500 14C yr B.P., give the first detailed evidence of vegetation in this area during these periods. The overall assemblages are similar to each other, with Picea and Pinus dominating the arboreal pollen and Poaceae and Cyperaceae the herbaceous flora. Nonarboreal pollen contributes about 30-50% of the total, indicating a very open vegetation or a mix of forest patches and open areas. Especially in Delaware, there is a diversity of other herbaceous pollen, including members of the Asteraceae, Fabaceae, and Ranunculaceae. The assemblages do not resemble current North American tundra or boreal forest assemblages; rather, they resemble assemblages characteristic of tundra on recently exposed land surfaces north of the Wisconsinan terminal moraine. The persistence of the assemblages for 1500-2000 years in late-glacial time suggests stable and cold climate during this time of glacier retreat.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1006/qres.1999.2103","issn":"00335894","usgsCitation":"Russell, E., and Stanford, S., 2000, Late-glacial environmental changes south of the Wisconsinan terminal moraine in the Eastern United States: Quaternary Research, v. 53, no. 1, p. 105-113, https://doi.org/10.1006/qres.1999.2103.","startPage":"105","endPage":"113","numberOfPages":"9","costCenters":[],"links":[{"id":208176,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1006/qres.1999.2103"},{"id":233696,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a4568e4b0c8380cd672be","contributors":{"authors":[{"text":"Russell, E.W.B.","contributorId":26849,"corporation":false,"usgs":true,"family":"Russell","given":"E.W.B.","email":"","affiliations":[],"preferred":false,"id":396192,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stanford, S.D.","contributorId":79932,"corporation":false,"usgs":true,"family":"Stanford","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":396193,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023108,"text":"70023108 - 2000 - Treatment of internal sources in the finite-volume ELLAM","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70023108","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Treatment of internal sources in the finite-volume ELLAM","docAbstract":"The finite-volume Eulerian-Lagrangian localized adjoint method (FVELLAM) is a mass-conservative approach for solving the advection-dispersion equation. The method has been shown to be accurate and efficient for solving advection-dominated problems of solute transport in ground water in 1, 2, and 3 dimensions. Previous implementations of FVELLAM have had difficulty in representing internal sources because the standard assumption of lowest order Raviart-Thomas velocity field does not hold for source cells. Therefore, tracking of particles within source cells is problematic. A new approach has been developed to account for internal sources in FVELLAM. It is assumed that the source is uniformly distributed across a grid cell and that instantaneous mixing takes place within the cell, such that concentration is uniform across the cell at any time. Sub-time steps are used in the time-integration scheme to track mass outflow from the edges of the source cell. This avoids the need for tracking within the source cell. We describe the new method and compare results for a test problem with a wide range of cell Peclet numbers.","largerWorkTitle":"Computational methods in water resources - Volume 2 - Computational methods,surface water systems and hydrology","conferenceTitle":"Computational Methods in Water Resources","conferenceDate":"25 June 2000 through 29 June 2000","conferenceLocation":"Calgary","language":"English","publisherLocation":"A.A.Balkema","isbn":"9058091252","usgsCitation":"Healy, R.W., 2000, Treatment of internal sources in the finite-volume ELLAM, <i>in</i> Computational methods in water resources - Volume 2 - Computational methods,surface water systems and hydrology, Calgary, 25 June 2000 through 29 June 2000, p. 619-622.","startPage":"619","endPage":"622","numberOfPages":"4","costCenters":[],"links":[{"id":233697,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb796e4b08c986b327374","contributors":{"editors":[{"text":"Bentley L.R.","contributorId":128326,"corporation":true,"usgs":false,"organization":"Bentley L.R.","id":536487,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Sykes J.F.","contributorId":128330,"corporation":true,"usgs":false,"organization":"Sykes J.F.","id":536488,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Brebbia C.A.","contributorId":128441,"corporation":true,"usgs":false,"organization":"Brebbia C.A.","id":536491,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Gray W.G.","contributorId":128367,"corporation":true,"usgs":false,"organization":"Gray W.G.","id":536489,"contributorType":{"id":2,"text":"Editors"},"rank":4},{"text":"Pinder G.F.","contributorId":128399,"corporation":true,"usgs":false,"organization":"Pinder G.F.","id":536490,"contributorType":{"id":2,"text":"Editors"},"rank":5}],"authors":[{"text":"Healy, R. W.","contributorId":89872,"corporation":false,"usgs":true,"family":"Healy","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":396194,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70022299,"text":"70022299 - 2000 - Occurrence of nitrous oxide in the central High Plains aquifer, 1999","interactions":[],"lastModifiedDate":"2012-03-12T17:19:47","indexId":"70022299","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","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":"Occurrence of nitrous oxide in the central High Plains aquifer, 1999","docAbstract":"Nitrogen-enriched groundwater has been proposed as an important anthropogenic source of atmospheric nitrous oxide (N2O), yet few measurements of N2O in large aquifer systems have been made. Concentrations of N2O in water samples collected from the 124 000 km2 central High Plains aquifer in 1999 ranged from < 1 to 940 nM, with a median concentration of 29 nM (n = 123). Eighty percent of the N20 concentrations exceeded the aqueous concentration expected from equilibration with atmospheric N2O. Measurements of N2O, NO3-, and 3H in unsaturated-zone sediments, recently recharged groundwater, and older groundwater indicate that concentrations of N2O in groundwater increased over time and will likely continue to increase in the future as N-enriched water recharges the aquifer. Large concentrations of O2 and NO3- and small concentrations of NH4+ and dissolved organic carbon in the aquifer indicate that N2O in the central High Plains aquifer was produced primarily by nitrification. Calculations indicate that the flux of N2O from the central High Plains aquifer to the atmosphere from well pumping and groundwater discharge to streams was not a significant source of atmospheric N2O.Nitrogen-enriched groundwater has been proposed as an important anthropogenic source of atmospheric nitrous oxide (N2O), yet few measurements of N2O in large aquifer systems have been made. Concentrations of N2O in water samples collected from the 124000 km2 central High Plains aquifer in 1999 ranged from < 1 to 940 nM, with a median concentration of 29 nM (n = 123). Eighty percent of the N2O concentrations exceeded the aqueous concentration expected from equilibration with atmospheric N2O. Measurements of N2O, NO3-, and 3H in unsaturated-zone sediments, recently recharged groundwater, and older groundwater indicate that concentrations of N2O in groundwater increased over time and will likely continue to increase in the future as N-enriched water recharges the aquifer. Large concentrations of O2 and NO3- and small concentrations of NH4+ and dissolved organic carbon in the aquifer indicate that N2O in the central High Plains aquifer was produced primarily by nitrification. Calculations indicate that the flux of N2O from the central High Plains aquifer to the atmosphere from well pumping and groundwater discharge to streams was not a significant source of atmospheric N2O.Water samples were collected from 92 domestic wells, 16 monitoring wells and 15 public-supply wells in the High Plains Aquifer in 1999, and concentrations of nitrous oxide were measured. The groundwater concentrations ranged from less than 1 to 940 nM. Concentrations expressed as a percent of saturation in water ranged from less than 10 to 9690%. A significant decrease was noted in N2O concentrations with increasing depth of the well screen below the water table, and a significant positive correlation was found between the concentrations of N2O and nitrate. The small area-averaged N2O emission rate for the aquifer indicated that it was not an important component of the atmospheric N2O budget, but the importance could increase as groundwater N2O concentrations increase.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"ACS","publisherLocation":"Washington, DC, United States","doi":"10.1021/es001233t","issn":"0013936X","usgsCitation":"McMahon, P., Bruch, B., Becker, M., Pope, L.M., and Dennehy, K., 2000, Occurrence of nitrous oxide in the central High Plains aquifer, 1999: Environmental Science & Technology, v. 34, no. 23, p. 4873-4877, https://doi.org/10.1021/es001233t.","startPage":"4873","endPage":"4877","numberOfPages":"5","costCenters":[],"links":[{"id":206748,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es001233t"},{"id":230711,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"23","noUsgsAuthors":false,"publicationDate":"2000-10-21","publicationStatus":"PW","scienceBaseUri":"505a6bfbe4b0c8380cd749d0","contributors":{"authors":[{"text":"McMahon, P.B. 0000-0001-7452-2379","orcid":"https://orcid.org/0000-0001-7452-2379","contributorId":10762,"corporation":false,"usgs":true,"family":"McMahon","given":"P.B.","affiliations":[],"preferred":false,"id":393060,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bruch, B.W.","contributorId":103144,"corporation":false,"usgs":true,"family":"Bruch","given":"B.W.","email":"","affiliations":[],"preferred":false,"id":393063,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Becker, M.F.","contributorId":103708,"corporation":false,"usgs":true,"family":"Becker","given":"M.F.","email":"","affiliations":[],"preferred":false,"id":393064,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pope, L. M.","contributorId":71939,"corporation":false,"usgs":true,"family":"Pope","given":"L.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":393062,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dennehy, K.F.","contributorId":41841,"corporation":false,"usgs":true,"family":"Dennehy","given":"K.F.","affiliations":[],"preferred":false,"id":393061,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":1000883,"text":"1000883 - 2000 - Land use, habitat, and water quality effects on macroinvertebrate communities in three watersheds of a Lake Michigan associated marsh system","interactions":[],"lastModifiedDate":"2017-05-04T11:56:22","indexId":"1000883","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":865,"text":"Aquatic Ecosystem Health & Management","active":true,"publicationSubtype":{"id":10}},"title":"Land use, habitat, and water quality effects on macroinvertebrate communities in three watersheds of a Lake Michigan associated marsh system","docAbstract":"<p><span>Three watersheds within a marsh system draining into Lake Michigan in northwest Indiana, USA, were studied for differences among land use, habitat conditions and water quality to determine their influence on macroinvertebrate community structure. Much of this area had been altered for agricultural, commercial, industrial and residential land uses. Land use, habitat conditions and water quality were significantly different among watersheds. Water quality varied more among streams than within streams. Several variables were related to land use, especially dissolved ions. Macroinvertebrate communities depicted neither a healthy wetland nor a healthy stream system. Some sites were typical of a sand-based, erosional stream system and others were more typical of a wetland system. Communities were different both in and among streams; relationships with water chemistry variables and land use suggested that community structure was a function of local-scale, abiotic factors rather than watershed-scale characteristics. These results show the importance of local-scale influences on the structure and function of macroinvertebrate communities. The development of the methods used to measure these local-scale landscape factors is important to restoration and management.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/14634980008656999","usgsCitation":"Stewart, P., Butcher, J., and Swinford, T., 2000, Land use, habitat, and water quality effects on macroinvertebrate communities in three watersheds of a Lake Michigan associated marsh system: Aquatic Ecosystem Health & Management, v. 3, no. 1, p. 179-189, https://doi.org/10.1080/14634980008656999.","productDescription":"11 p.","startPage":"179","endPage":"189","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133426,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Indiana","volume":"3","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6adf85","contributors":{"authors":[{"text":"Stewart, P.M.","contributorId":14756,"corporation":false,"usgs":true,"family":"Stewart","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":309728,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butcher, J.T.","contributorId":90265,"corporation":false,"usgs":true,"family":"Butcher","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":309730,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Swinford, T.O.","contributorId":49754,"corporation":false,"usgs":true,"family":"Swinford","given":"T.O.","email":"","affiliations":[],"preferred":false,"id":309729,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1000858,"text":"1000858 - 2000 - Aggressive and foraging behavioral interactions among ruffe","interactions":[],"lastModifiedDate":"2013-02-04T14:03:32","indexId":"1000858","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1528,"text":"Environmental Biology of Fishes","active":true,"publicationSubtype":{"id":10}},"title":"Aggressive and foraging behavioral interactions among ruffe","docAbstract":"The ruffe, <i>Gymnocephalus cernuus</i>, is a  nonindigenous percid in the Great Lakes.  Ruffe are aggressive benthivores and forage over soft substrates.  Laboratory studies in pools (100 cm in diameter, 15 cm water depth) were conducted to determine whether fish density (low = 2, medium = 4, high = 6 ruffe per pool) changed foraging and aggressive behaviors with a limited food supply of chironomid larvae.  All fish densities demonstrated a hierarchy based on aggressive interactions, but ruffe were most aggressive at low and high fish densities.  Time spent in foraging was lowest at the low fish density.  The best forager at the low fish density was the most aggressive individual, but the second most aggressive fish at the medium and high fish density was the best forager and also the one chased most frequently.  A medium fish density offered the best energetic benefits to ruffe by providing the lowest ratio of time spent in aggression to that spent foraging.  Based on our results, ruffe should grow best at an intermediate density.  With high ruffe densities, we would also expect disparity in size as the more aggressive fish are able to garner a disproportionate amount of the resources.  Alternatively, as the Great Lakes are a fairly open system, ruffe could migrate out of one area to colonize another as populations exceed optimal densities.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Biology of Fishes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1023/A:1007523307404","usgsCitation":"Savino, J.F., and Kostich, M., 2000, Aggressive and foraging behavioral interactions among ruffe: Environmental Biology of Fishes, v. 57, no. 3, p. 337-345, https://doi.org/10.1023/A:1007523307404.","productDescription":"9 p.","startPage":"337","endPage":"345","numberOfPages":"9","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133635,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":266952,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1007523307404"}],"volume":"57","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db606503","contributors":{"authors":[{"text":"Savino, Jacqueline F. jsavino@usgs.gov","contributorId":2213,"corporation":false,"usgs":true,"family":"Savino","given":"Jacqueline","email":"jsavino@usgs.gov","middleInitial":"F.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":309630,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kostich, Melissa J.","contributorId":72325,"corporation":false,"usgs":true,"family":"Kostich","given":"Melissa J.","affiliations":[],"preferred":false,"id":309631,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1000872,"text":"1000872 - 2000 - Effects of thiamine on reproduction of Atlantic salmon and a new hypothesis for their extirpation in Lake Ontario","interactions":[],"lastModifiedDate":"2016-05-23T13:28:55","indexId":"1000872","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","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":"Effects of thiamine on reproduction of Atlantic salmon and a new hypothesis for their extirpation in Lake Ontario","docAbstract":"<p><span>Previous researchers demonstrated that a mortality in fry (called Cayuga syndrome) of Atlantic salmon&nbsp;</span><i>Salmo salar</i><span>&nbsp;from Cayuga Lake (New York) was associated with low levels of thiamine. They reduced the mortality of fry by bathing or injecting fry with thiamine. We injected four to six gravid female Atlantic salmon with either physiological saline (PS) or PS plus thiamine (7 mg/kg weight) 14&ndash;23 d before eggs were stripped, fertilized, and incubated in individual lots. Chemical analyses showed that eggs from control and treated salmon contained 1.1 and 1.6 nmol thiamine/g, respectively. Thiamine injections had no significant effect on the percentage of eggs that hatched. Between 700 and 800 Celius degree-days postfertilization, control fry (saline) showed signs of Cayuga syndrome and a 45% incidence of mortality; in contrast, mortality was only 1.9% for fry that received thiamine. By 1,078 degree-days postfertilization, mean mortality of control fry was 98.6%, whereas that for thiamine-injected salmon was 2.1%. This study showed that thiamine injections of prespawning female salmon from Cayuga Lake increased thiamine content of their eggs and prevented the Cayuga syndrome and subsequent mortality of fry. Historically, overfishing, pollution, and building of dams and barriers to spawning migration were suggested as possible causes of the decline of the Atlantic salmon in Lake Ontario and Cayuga Lake. Based on our findings and other reports, we suggest another possible contributing cause of the extirpation of landlocked Atlantic salmon in Lake Ontario and some other inland waters of New York: The entrance of alewives&nbsp;</span><i>Alosa pseudoharengus</i><span>&nbsp;containing thiaminase, which induced thiamine deficiency in eggs and increased mortality in fry of the predatory salmon.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8659(2000)129<0607:EOTORO>2.0.CO;2","usgsCitation":"Ketola, H.G., Bowser, P., Wooster, G.A., Wedge, L.R., and Hurst, S.S., 2000, Effects of thiamine on reproduction of Atlantic salmon and a new hypothesis for their extirpation in Lake Ontario: Transactions of the American Fisheries Society, v. 129, no. 2, p. 607-612, https://doi.org/10.1577/1548-8659(2000)129<0607:EOTORO>2.0.CO;2.","productDescription":"6 p.","startPage":"607","endPage":"612","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133476,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"129","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a27e4b07f02db6100cf","contributors":{"authors":[{"text":"Ketola, H. George 0000-0002-7260-5602 gketola@usgs.gov","orcid":"https://orcid.org/0000-0002-7260-5602","contributorId":2664,"corporation":false,"usgs":true,"family":"Ketola","given":"H.","email":"gketola@usgs.gov","middleInitial":"George","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":309682,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bowser, Paul R.","contributorId":10391,"corporation":false,"usgs":true,"family":"Bowser","given":"Paul R.","affiliations":[],"preferred":false,"id":309683,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wooster, Gregory A.","contributorId":37700,"corporation":false,"usgs":true,"family":"Wooster","given":"Gregory","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":309685,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wedge, Leslie R.","contributorId":48130,"corporation":false,"usgs":true,"family":"Wedge","given":"Leslie","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":309686,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hurst, Steven S.","contributorId":34476,"corporation":false,"usgs":true,"family":"Hurst","given":"Steven","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":309684,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70174039,"text":"70174039 - 2000 - Trophic ecology of largemouth bass and northern pike in allopatric and sympatric assemblages in northern boreal lakes","interactions":[],"lastModifiedDate":"2016-12-08T14:58:56","indexId":"70174039","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Trophic ecology of largemouth bass and northern pike in allopatric and sympatric assemblages in northern boreal lakes","docAbstract":"<p><span>Largemouth bass (</span><i>Micropterus</i><span>&nbsp;</span><i>salmoides</i><span>) and northern pike (</span><i>Esox</i><span>&nbsp;</span><i>lucius</i><span>) are top predators in the food chain in most aquatic environments that they occupy; however, limited information exists on species interactions in the northern reaches of largemouth bass distribution. We investigated the seasonal food habits of allopatric and sympatric assemblages of largemouth bass and northern pike in six interior lakes within Voyageurs National Park, Minnesota. Percentages of empty stomachs were variable for largemouth bass (38-54%) and northern pike (34.7-66.7%). Fishes (mainly yellow perch,&nbsp;</span><i>Perca</i><span>&nbsp;</span><i>flavescens</i><span>) comprised greater than 60% (mean percent mass, MPM) of the northern pike diet during all seasons in both allopatric and sympatric assemblages. Aquatic insects (primarily Odonata and Hemiptera) were important in the diets of largemouth bass in all communities (0.0-79.7 MPM). Although largemouth bass were observed in the diet of northern pike, largemouth bass apparently did not prey on northern pike. Seasonal differences were observed in the proportion of aquatic insects (</span><i>P</i><span>&nbsp;= 0.010) and fishes (</span><i>P</i><span>&nbsp;= 0.023) in the diets of northern pike and largemouth bass. Based on three food categories, jackknifed classifications correctly classified 77 and 92% of northern pike and largemouth bass values, respectively. Percent resource overlap values were biologically significant (greater than 60%) during at least one season in each sympatric assemblage, suggesting some diet overlap.</span></p>","language":"English","publisher":"NRC Research Press","doi":"10.1139/z00-126","usgsCitation":"Soupir, C.A., Brown, M., and Kallemeyn, L.W., 2000, Trophic ecology of largemouth bass and northern pike in allopatric and sympatric assemblages in northern boreal lakes: Canadian Journal of Zoology, v. 78, no. 10, p. 1759-1766, https://doi.org/10.1139/z00-126.","productDescription":"8 p.","startPage":"1759","endPage":"1766","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":324326,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","otherGeospatial":"Voyageurs National Parks","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -93.1585693359375,\n              48.61656946813302\n            ],\n            [\n              -93.03497314453125,\n              48.61747733567233\n            ],\n            [\n              -92.92785644531249,\n              48.60658184761339\n            ],\n            [\n              -92.73834228515625,\n              48.53479452317522\n            ],\n            [\n              -92.63946533203124,\n              48.53843177405044\n            ],\n            [\n              -92.62985229492188,\n              48.506596968085894\n            ],\n            [\n              -92.6971435546875,\n              48.49840764096436\n            ],\n            [\n              -92.713623046875,\n              48.468368787493915\n            ],\n            [\n              -92.69577026367188,\n              48.451976459625996\n            ],\n            [\n              -92.66006469726562,\n              48.439223211480595\n            ],\n            [\n              -92.53921508789062,\n              48.44560023585716\n            ],\n            [\n              -92.51174926757812,\n              48.44560023585716\n            ],\n            [\n              -92.4774169921875,\n              48.424644149283594\n            ],\n            [\n              -92.45407104492188,\n              48.41097247934197\n            ],\n            [\n              -92.47467041015625,\n              48.34712273417819\n            ],\n            [\n              -92.46368408203125,\n              48.30146673770983\n            ],\n            [\n              -92.52410888671875,\n              48.30146673770983\n            ],\n            [\n              -92.75344848632812,\n              48.37723330604312\n            ],\n            [\n              -92.96768188476561,\n              48.398208936781806\n            ],\n            [\n              -93.04733276367188,\n              48.43011178780492\n            ],\n            [\n              -93.10775756835936,\n              48.486576276944774\n            ],\n            [\n              -93.22860717773438,\n              48.47747334905567\n            ],\n            [\n              -93.18603515624999,\n              48.61293783470649\n            ],\n            [\n              -93.1585693359375,\n              48.61656946813302\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"78","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"576d0839e4b07657d1a37594","contributors":{"authors":[{"text":"Soupir, Craig A.","contributorId":172411,"corporation":false,"usgs":false,"family":"Soupir","given":"Craig","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":640632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, Michael L.","contributorId":171903,"corporation":false,"usgs":false,"family":"Brown","given":"Michael L.","affiliations":[],"preferred":false,"id":640633,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kallemeyn, Larry W.","contributorId":53320,"corporation":false,"usgs":true,"family":"Kallemeyn","given":"Larry","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":640634,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70022288,"text":"70022288 - 2000 - Preliminary study of gill NA+,K+-ATPase activity in juvenile spring chinook salmon following electroshock or handling stress","interactions":[],"lastModifiedDate":"2016-04-21T14:27:02","indexId":"70022288","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","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":"Preliminary study of gill NA+,K+-ATPase activity in juvenile spring chinook salmon following electroshock or handling stress","docAbstract":"<p>We compared gill Na+,K+-ATPase in subyearling and yearling spring chinook salmon Oncorhynchus tshawytscha 3 h, 24 h, and 7 d after exposure to either a short pulsed DC electroshock (300 V, 50 Hz, 8-ms pulse duration) or an acute handling stress. Mean gill Na+,K+-ATPase values ranged from 7.5 to 11.8 ??mol inorganic phosphate (Pi) ?? (mg protein)-1 ?? h-1. No significant differences were detected, with the exception of electroshocked subyearlings 7 d after treatment. Increased activity was attributed to the presence of two influential values. No significant differences were detected after removal of these observations, so the increase was not considered biologically significant. Inclusion of the outliers did not alter our interpretation of the results given that the observed increase was slight compared with the magnitude of changes reported under experimental conditions and in migrating juvenile salmonids. The treatment groups underwent a typical stress response and had significantly elevated cortisol and glucose levels 3 h after treatment. Recovery to control levels occurred within 24 h for cortisol and from 24 h to 7 d for glucose. Our results lead to the conclusion that neither acute electroshock nor acute handling stress alters Na+,K+-ATPase activity in juvenile spring chinook salmon.</p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8675(2000)020<0528:PSOGNK>2.3.CO;2","issn":"02755947","usgsCitation":"VanderKooi, S.P., Gale, W.L., and Maule, A., 2000, Preliminary study of gill NA+,K+-ATPase activity in juvenile spring chinook salmon following electroshock or handling stress: North American Journal of Fisheries Management, v. 20, no. 2, p. 528-533, https://doi.org/10.1577/1548-8675(2000)020<0528:PSOGNK>2.3.CO;2.","productDescription":"6 p.","startPage":"528","endPage":"533","numberOfPages":"6","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":230530,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206677,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/1548-8675(2000)020<0528:PSOGNK>2.3.CO;2"}],"volume":"20","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8ab6e4b0c8380cd7e0db","contributors":{"authors":[{"text":"VanderKooi, S. P.","contributorId":12587,"corporation":false,"usgs":true,"family":"VanderKooi","given":"S.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":393009,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gale, William L.","contributorId":48726,"corporation":false,"usgs":true,"family":"Gale","given":"William","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":393011,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Maule, A.G.","contributorId":45067,"corporation":false,"usgs":true,"family":"Maule","given":"A.G.","email":"","affiliations":[],"preferred":false,"id":393010,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1000882,"text":"1000882 - 2000 - FITPOP, a heuristic simulation model of population dynamics and genetics with special reference to fisheries","interactions":[],"lastModifiedDate":"2016-05-23T13:17:41","indexId":"1000882","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"FITPOP, a heuristic simulation model of population dynamics and genetics with special reference to fisheries","docAbstract":"<p>Although, perceiving genetic differences and their effects on fish population dynamics is difficult, simulation models offer a means to explore and illustrate these effects. I partitioned the intrinsic rate of increase parameter of a simple logistic-competition model into three components, allowing specification of effects of relative differences in fitness and mortality, as well as finite rate of increase. This model was placed into an interactive, stochastic environment to allow easy manipulation of model parameters (FITPOP). Simulation results illustrated the effects of subtle differences in genetic and population parameters on total population size, overall fitness, and sensitivity of the system to variability. Several consequences of mixing genetically distinct populations were illustrated. For example, behaviors such as depression of population size after initial introgression and extirpation of native stocks due to continuous stocking of genetically inferior fish were reproduced. It also was shown that carrying capacity relative to the amount of stocking had an important influence on population dynamics. Uncertainty associated with parameter estimates reduced confidence in model projections. The FITPOP model provided a simple tool to explore population dynamics, which may assist in formulating management strategies and identifying research needs.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0304-3800(99)00205-7","usgsCitation":"McKenna, J., 2000, FITPOP, a heuristic simulation model of population dynamics and genetics with special reference to fisheries: Ecological Modelling, v. 127, no. 1, p. 81-95, https://doi.org/10.1016/S0304-3800(99)00205-7.","productDescription":"15 p.","startPage":"81","endPage":"95","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133425,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"127","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a08e4b07f02db5fa43b","contributors":{"authors":[{"text":"McKenna, James E. Jr.","contributorId":56992,"corporation":false,"usgs":true,"family":"McKenna","given":"James E.","suffix":"Jr.","affiliations":[],"preferred":false,"id":309727,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":95312,"text":"95312 - 2000 - Cancer","interactions":[],"lastModifiedDate":"2012-02-02T00:03:55","indexId":"95312","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Cancer","docAbstract":"No abstract available at this time","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"The Laboratory Fish","largerWorkSubtype":{"id":9,"text":"Other Report"},"language":"English","publisher":"Academic Press","publisherLocation":"San Diego, CA","collaboration":"01-012/FH","usgsCitation":"Baumann, P.C., and Okihiro, M., 2000, Cancer, chap. <i>of</i> The Laboratory Fish, p. 591-616.","productDescription":"p. 591-616","startPage":"591","endPage":"616","numberOfPages":"26","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":127547,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fee4b07f02db5f6db1","contributors":{"editors":[{"text":"Ostrander, G.K.","contributorId":12328,"corporation":false,"usgs":true,"family":"Ostrander","given":"G.K.","affiliations":[],"preferred":false,"id":505520,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Baumann, P. C.","contributorId":43297,"corporation":false,"usgs":false,"family":"Baumann","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":298864,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Okihiro, M.S.","contributorId":28551,"corporation":false,"usgs":true,"family":"Okihiro","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":298863,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":96891,"text":"96891 - 2000 - Anza-Borrego Desert State Park Amphibian Survey","interactions":[],"lastModifiedDate":"2012-02-02T00:03:59","indexId":"96891","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Anza-Borrego Desert State Park Amphibian Survey","docAbstract":"No abstract available at this time","language":"English","usgsCitation":"Warburton, M., and Fisher, R., 2000, Anza-Borrego Desert State Park Amphibian Survey, 21 p.","productDescription":"21 p.","startPage":"21","numberOfPages":"21","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":128222,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67ae6b","contributors":{"authors":[{"text":"Warburton, M.L.","contributorId":104425,"corporation":false,"usgs":true,"family":"Warburton","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":300505,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fisher, Robert N. 0000-0002-2956-3240","orcid":"https://orcid.org/0000-0002-2956-3240","contributorId":51675,"corporation":false,"usgs":true,"family":"Fisher","given":"Robert N.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":300504,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":87295,"text":"87295 - 2000 - Amphibian declines: Review of some current hypotheses","interactions":[{"subject":{"id":87295,"text":"87295 - 2000 - Amphibian declines: Review of some current hypotheses","indexId":"87295","publicationYear":"2000","noYear":false,"title":"Amphibian declines: Review of some current hypotheses"},"predicate":"IS_PART_OF","object":{"id":5200236,"text":"5200236 - 2000 - Ecotoxicology of Amphibians and Reptiles","indexId":"5200236","publicationYear":"2000","noYear":false,"title":"Ecotoxicology of Amphibians and Reptiles"},"id":1}],"isPartOf":{"id":5200236,"text":"5200236 - 2000 - Ecotoxicology of Amphibians and Reptiles","indexId":"5200236","publicationYear":"2000","noYear":false,"title":"Ecotoxicology of Amphibians and Reptiles"},"lastModifiedDate":"2018-01-02T08:11:42","indexId":"87295","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Amphibian declines: Review of some current hypotheses","docAbstract":"<p>No abstract available.<br data-mce-bogus=\"1\"></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Ecotoxicology of Amphibians and Reptiles","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Society of Environmental Toxicology and Chemistry","publisherLocation":"Pensacola, FL","isbn":"9781880611289","usgsCitation":"Corn, P., 2000, Amphibian declines: Review of some current hypotheses, chap. <i>of</i> Ecotoxicology of Amphibians and Reptiles, p. 663-696.","productDescription":"34 p.","startPage":"663","endPage":"696","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":128344,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":14710,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://www.crcpress.com/Ecotoxicology-of-Amphibians-and-Reptiles-Second-Edition/Sparling-Linder-Bishop-Krest/p/book/9781420064162","text":"Second Edition"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adce4b07f02db6867ca","contributors":{"editors":[{"text":"Sparling, D. W.","contributorId":78675,"corporation":false,"usgs":true,"family":"Sparling","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":504926,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Linder, G.","contributorId":43070,"corporation":false,"usgs":true,"family":"Linder","given":"G.","email":"","affiliations":[],"preferred":false,"id":504925,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Bishop, C.A.","contributorId":8434,"corporation":false,"usgs":true,"family":"Bishop","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":504924,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Corn, P.S.","contributorId":63751,"corporation":false,"usgs":true,"family":"Corn","given":"P.S.","affiliations":[],"preferred":false,"id":297602,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1001720,"text":"1001720 - 2000 - American bittern depredates sora","interactions":[],"lastModifiedDate":"2017-09-08T09:33:23","indexId":"1001720","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3111,"text":"Prairie Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"American bittern depredates sora","docAbstract":"<p>No abstract available.<br></p>","language":"English","publisher":"Prairie Naturalist","usgsCitation":"Austin, J.E., and Slivinski, M., 2000, American bittern depredates sora: Prairie Naturalist, v. 32, no. 1, p. 59-60.","productDescription":"2 p.","startPage":"59","endPage":"60","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":129134,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adce4b07f02db6868cd","contributors":{"authors":[{"text":"Austin, J. E.","contributorId":5999,"corporation":false,"usgs":true,"family":"Austin","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":311581,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Slivinski, M.B.","contributorId":15963,"corporation":false,"usgs":true,"family":"Slivinski","given":"M.B.","email":"","affiliations":[],"preferred":false,"id":311582,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":95455,"text":"95455 - 2000 - National Fish Strain Registry - Catfish (NFSR-C) Operating Manual","interactions":[],"lastModifiedDate":"2012-02-02T00:04:00","indexId":"95455","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":4,"text":"Book"},"title":"National Fish Strain Registry - Catfish (NFSR-C) Operating Manual","docAbstract":"No abstract available at this time","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"National Fish Strain Registry","largerWorkSubtype":{"id":9,"text":"Other Report"},"language":"English","publisher":"U.S. Geological Survey; U. S. Fish and Wildlife Service","collaboration":"00-031/NF","usgsCitation":"Kincaid, H.L., Mengel, L., Gray, M., and Brimm, S., 2000, National Fish Strain Registry - Catfish (NFSR-C) Operating Manual.","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":127893,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db698826","contributors":{"authors":[{"text":"Kincaid, H. L.","contributorId":21891,"corporation":false,"usgs":false,"family":"Kincaid","given":"H.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":299163,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mengel, L.J.","contributorId":54141,"corporation":false,"usgs":true,"family":"Mengel","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":299164,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gray, M.J.","contributorId":90662,"corporation":false,"usgs":true,"family":"Gray","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":299165,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brimm, S.","contributorId":92192,"corporation":false,"usgs":true,"family":"Brimm","given":"S.","email":"","affiliations":[],"preferred":false,"id":299166,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":95429,"text":"95429 - 2000 - Observed changes in early mortality syndrome in Lake Michigan coho and chinook salmon from 1994-1999","interactions":[],"lastModifiedDate":"2012-02-02T00:03:55","indexId":"95429","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":18,"text":"Abstract or summary"},"title":"Observed changes in early mortality syndrome in Lake Michigan coho and chinook salmon from 1994-1999","docAbstract":"No abstract available at this time","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Report on Early Mortality Syndrome Workshop Board of Technical Experts Briefing Book","largerWorkSubtype":{"id":9,"text":"Other Report"},"language":"English","publisher":"Great Lakes Fishery Commission","publisherLocation":"Ann Arbor, MI","collaboration":"01-060/NF","usgsCitation":"Hnath, J., Wolgamood, M., Marcquenski, S., Brown, S., Fitzsimons, J., Tillitt, D.E., and Honeyfield, D., 2000, Observed changes in early mortality syndrome in Lake Michigan coho and chinook salmon from 1994-1999, <i>in</i> Report on Early Mortality Syndrome Workshop Board of Technical Experts Briefing Book.","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":127593,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afbe4b07f02db6963d9","contributors":{"authors":[{"text":"Hnath, J.","contributorId":37675,"corporation":false,"usgs":true,"family":"Hnath","given":"J.","affiliations":[],"preferred":false,"id":299105,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wolgamood, M.","contributorId":65790,"corporation":false,"usgs":true,"family":"Wolgamood","given":"M.","email":"","affiliations":[],"preferred":false,"id":299107,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Marcquenski, S.V.","contributorId":11984,"corporation":false,"usgs":true,"family":"Marcquenski","given":"S.V.","affiliations":[],"preferred":false,"id":299104,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brown, S.B.","contributorId":107636,"corporation":false,"usgs":true,"family":"Brown","given":"S.B.","email":"","affiliations":[],"preferred":false,"id":299110,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fitzsimons, J.D.","contributorId":50845,"corporation":false,"usgs":true,"family":"Fitzsimons","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":299106,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Tillitt, D. E.","contributorId":83462,"corporation":false,"usgs":true,"family":"Tillitt","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":299109,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Honeyfield, D. C. 0000-0003-3034-2047","orcid":"https://orcid.org/0000-0003-3034-2047","contributorId":73136,"corporation":false,"usgs":true,"family":"Honeyfield","given":"D. C.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":299108,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":1002695,"text":"1002695 - 2000 - Mapping and converting essential Federal Geographic Data Committee (FGDC) metadata into MARC21 and Dublin Core: towards an alternative to the FGDC Clearinghouse","interactions":[],"lastModifiedDate":"2012-02-02T00:04:08","indexId":"1002695","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1363,"text":"D-Lib","active":true,"publicationSubtype":{"id":10}},"title":"Mapping and converting essential Federal Geographic Data Committee (FGDC) metadata into MARC21 and Dublin Core: towards an alternative to the FGDC Clearinghouse","docAbstract":"The purpose of this article is to raise and address a number of issues related to the conversion of Federal Geographic Data Committee metadata into MARC21 and Dublin Core. We present an analysis of 466 FGDC metadata records housed in the National Biological Information Infrastructure (NBII) node of the FGDC Clearinghouse, with special emphasis on the length of fields and the total length of records in this set. One of our contributions is a 34 element crosswalk, a proposal that takes into consideration the constraints of the MARC21 standard as implemented in OCLC's World Cat and the realities of user behavior. ","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"D-Lib","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Chandler, A., Foley, D., and Hafez, A., 2000, Mapping and converting essential Federal Geographic Data Committee (FGDC) metadata into MARC21 and Dublin Core: towards an alternative to the FGDC Clearinghouse: D-Lib, v. 6, no. 1, p. 1-1.","productDescription":"1 Web page","startPage":"1","endPage":"1","numberOfPages":"1","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"links":[{"id":15439,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://www.dlib.org/dlib/january00/chandler/01chandler.html","linkFileType":{"id":5,"text":"html"},"description":"7034.000000000000000"},{"id":129412,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b0be4b07f02db69de77","contributors":{"authors":[{"text":"Chandler, A.","contributorId":27402,"corporation":false,"usgs":true,"family":"Chandler","given":"A.","email":"","affiliations":[],"preferred":false,"id":312152,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Foley, D.","contributorId":29356,"corporation":false,"usgs":true,"family":"Foley","given":"D.","affiliations":[],"preferred":false,"id":312153,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hafez, A.M.","contributorId":71128,"corporation":false,"usgs":true,"family":"Hafez","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":312154,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":96557,"text":"96557 - 2000 - Effects of the mosquito larvicide GB-1111 on mallard and bobwhite embryos","interactions":[],"lastModifiedDate":"2012-02-02T00:03:56","indexId":"96557","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":18,"text":"Abstract or summary"},"title":"Effects of the mosquito larvicide GB-1111 on mallard and bobwhite embryos","docAbstract":"No abstract available at this time","language":"English","publisher":"Society of Environmental Toxicology and Chemistry","publisherLocation":"Washington, DC","usgsCitation":"Hoffman, D.J., Albers, P., Melancon, M.J., and Miles, A., 2000, Effects of the mosquito larvicide GB-1111 on mallard and bobwhite embryos, v. 21.","productDescription":"p. 230","startPage":"230","numberOfPages":"230","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":127655,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a27e4b07f02db610159","contributors":{"authors":[{"text":"Hoffman, D. J.","contributorId":12801,"corporation":false,"usgs":true,"family":"Hoffman","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":299825,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Albers, P.H.","contributorId":26646,"corporation":false,"usgs":true,"family":"Albers","given":"P.H.","email":"","affiliations":[],"preferred":false,"id":299826,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Melancon, M. J.","contributorId":96206,"corporation":false,"usgs":true,"family":"Melancon","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":299828,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Miles, A.K. 0000-0002-3108-808X","orcid":"https://orcid.org/0000-0002-3108-808X","contributorId":85902,"corporation":false,"usgs":true,"family":"Miles","given":"A.K.","affiliations":[],"preferred":false,"id":299827,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":93802,"text":"93802 - 2000 - Weather monitoring protocol for two prairie parks","interactions":[],"lastModifiedDate":"2012-02-02T00:03:57","indexId":"93802","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Weather monitoring protocol for two prairie parks","language":"English","publisher":"U.S. Geological Survey, Northern Prairie Wildlife Research Center","usgsCitation":"Akyuz, F., Guinan, P., and Willson, G., 2000, Weather monitoring protocol for two prairie parks.","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":128359,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4aec","contributors":{"authors":[{"text":"Akyuz, F.A.","contributorId":16781,"corporation":false,"usgs":true,"family":"Akyuz","given":"F.A.","email":"","affiliations":[],"preferred":false,"id":297954,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Guinan, P.","contributorId":73534,"corporation":false,"usgs":true,"family":"Guinan","given":"P.","email":"","affiliations":[],"preferred":false,"id":297955,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Willson, G.D.","contributorId":99497,"corporation":false,"usgs":true,"family":"Willson","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":297956,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1001729,"text":"1001729 - 2000 - Waterfowl research priorities in the northern Great Plains","interactions":[],"lastModifiedDate":"2017-09-14T10:48:24","indexId":"1001729","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3779,"text":"Wildlife Society Bulletin","onlineIssn":"1938-5463","printIssn":"0091-7648","active":true,"publicationSubtype":{"id":10}},"title":"Waterfowl research priorities in the northern Great Plains","docAbstract":"It is necessary periodically to identify research priorities so that future research will be directed toward the most pertinent issues in waterfowl ecology and management. To that end, Northern Prairie Wildlife Research Center convened a quorum of experts on the ecology of breeding waterfowl, the Waterfowl Working Group, to 1) develop a mission statement, 2) identify waterfowl research priorities in the northern Great Plains, and 3) determine the frequency for re-identifying research needs. Research needs (nonprioritized) identified by the group and described in detail herein included: 1) determine effects of landscape factors on demographics and recruitment of ducks in the Prairie Pothole Region; 2) develop, improve, or update estimates of important parameters used in existing models for management and planning; 3) evaluate waterfowl management activities at broad, regional scales; 4) direct studies at waterfowl species of concern; and 5) evaluate applicability of the bird-conservation-area concept to waterfowl. The Waterfowl Working Group will reconsider research priorities at 2-year intervals.","language":"English","publisher":"Wildlife Society","usgsCitation":"Cox, R.R., Johnson, D.H., Johnson, M.A., Kirby, R., Nelson, J., and Reynolds, R., 2000, Waterfowl research priorities in the northern Great Plains: Wildlife Society Bulletin, v. 28, no. 3, p. 558-564.","productDescription":"7 p.","startPage":"558","endPage":"564","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":129392,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49cde4b07f02db5d9343","contributors":{"authors":[{"text":"Cox, R. R. Jr.","contributorId":57006,"corporation":false,"usgs":true,"family":"Cox","given":"R.","suffix":"Jr.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":311607,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, Douglas H. 0000-0002-7778-6641","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":70327,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":311608,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, M. A.","contributorId":87088,"corporation":false,"usgs":true,"family":"Johnson","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":311610,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kirby, R.E.","contributorId":75871,"corporation":false,"usgs":true,"family":"Kirby","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":311609,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nelson, J.W.","contributorId":9995,"corporation":false,"usgs":true,"family":"Nelson","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":311605,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Reynolds, R. E.","contributorId":25098,"corporation":false,"usgs":true,"family":"Reynolds","given":"R. E.","affiliations":[],"preferred":false,"id":311606,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":93860,"text":"93860 - 2000 - Effects of management practices on grassland birds: Vesper Sparrow","interactions":[],"lastModifiedDate":"2017-09-15T10:27:37","indexId":"93860","displayToPublicDate":"2000-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Effects of management practices on grassland birds: Vesper Sparrow","docAbstract":"<p>Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 5,500 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which provides the fundamental components or keys to management for the species. A section on breeding range outlines the current breeding distribution of the species in North America, including areas that could not be mapped using BBS data. The suitable habitat section describes the breeding habitat and occasionally microhabitat characteristics of the species, especially those habitats that occur in the Great Plains. Details on habitat and microhabitat requirements often provide clues to how a species will respond to a particular management practice. A table near the end of the account complements the section on suitable habitat, and lists the specific habitat characteristics for the species by individual studies. A special section on prey habitat is included for those predatory species that have more specific prey requirements. The area requirements section provides details on territory and home range sizes, minimum area requirements, and the effects of patch size, edges, and other landscape and habitat features on abundance and productivity. It may be futile to manage a small block of suitable habitat for a species that has minimum area requirements that are larger than the area being managed. The Brown-headed Cowbird (<i>Molothrus ater</i>) is an obligate brood parasite of many grassland birds. The section on cowbird brood parasitism summarizes rates of cowbird parasitism, host responses to parasitism, and factors that influence parasitism, such as nest concealment and host density. The impact of management depends, in part, upon a species' nesting phenology and biology. The section on breeding-season phenology and site fidelity includes details on spring arrival and fall departure for migratory populations in the Great Plains, peak breeding periods, the tendency to renest after nest failure or success, and the propensity to return to a previous breeding site. The duration and timing of breeding varies among regions and years. Species' response to management summarizes the current knowledge and major findings in the literature on the effects of different management practices on the species. The section on management recommendations complements the previous section and summarizes specific recommendations for habitat management provided in the literature. If management recommendations differ in different portions of the species' breeding range, recommendations are given separately by region. The literature cited contains references to published and unpublished literature on the management effects and habitat requirements of the species. 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