{"pageNumber":"3620","pageRowStart":"90475","pageSize":"25","recordCount":184938,"records":[{"id":70020005,"text":"70020005 - 1997 - Use of habitats by female northern pintails wintering in southwestern Louisiana","interactions":[],"lastModifiedDate":"2025-01-06T22:18:45.051285","indexId":"70020005","displayToPublicDate":"1997-04-01T00:00:00","publicationYear":"1997","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":"Use of habitats by female northern pintails wintering in southwestern Louisiana","docAbstract":"The breeding population of norther pintails (Anas acuta) in 1996 was 39% below the long-term average. Because winter habitat quality may influence subsequent breeding population size in pintails, identification of habitats used by wintering pintails and factors influencing use of habitats may be important for managing for population increase. We examined variation in diel use of habitats by radiotagged female pintails (n = 272) in southwestern Louisiana in relation to age (imm and ad), winter (1991-92 and 1992-93), and time period within winters (pre-hunting season, first hunting season, time between split hunting seasons, second hunting season, and post-hunting season). Diurnal use of refuges was significantly greater during hunting seasons than during immediately preceding or succeeding nonhunting seasons. Consequently, we reject Tamissier's (1976) hypothesis that high diurnal use of refuges by pintails in southwestern Louisiana occurs later in winters. Time-period differences in diurnal and nocturnal use of habitats (large permanent pools, marsh, rice, fallow [idle], and other agriculture [primarily soybeans]) were not consistent between winters. Diel use of refuges or habitats did not differ in relation to female age. Females used fallow and ice agriculture extensively, particularly at night, and these habitats collectively accounted for 68-93% of nocturnal use. Differential use of habitats between winters was related to annual differences in relative abundance of rice and fallow agriculture. Proximity of refuges to agricultural areas should be an important management consideration for wintering pintails and other waterfowl.
","language":"English","publisher":"Wiley","doi":"10.2307/3802601","usgsCitation":"Cox, R.R., and Afton, A.D., 1997, Use of habitats by female northern pintails wintering in southwestern Louisiana: Journal of Wildlife Management, v. 61, no. 2, p. 435-443, https://doi.org/10.2307/3802601.","productDescription":"9 p.","startPage":"435","endPage":"443","costCenters":[{"id":135,"text":"Biological Resources Division","active":false,"usgs":true}],"links":[{"id":227780,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana","otherGeospatial":"southwestern Louisiana","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -93.6187347883684,\n 30.500640934213536\n ],\n [\n -93.6187347883684,\n 29.549390583897804\n ],\n [\n -92.01468614287272,\n 29.549390583897804\n ],\n [\n -92.01468614287272,\n 30.500640934213536\n ],\n [\n -93.6187347883684,\n 30.500640934213536\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"61","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbf20e4b08c986b329983","contributors":{"authors":[{"text":"Cox, Robert R. Jr.","contributorId":6575,"corporation":false,"usgs":true,"family":"Cox","given":"Robert","suffix":"Jr.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":384674,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Afton, Alan D. 0000-0002-0436-8588 aafton@usgs.gov","orcid":"https://orcid.org/0000-0002-0436-8588","contributorId":139582,"corporation":false,"usgs":false,"family":"Afton","given":"Alan","email":"aafton@usgs.gov","middleInitial":"D.","affiliations":[{"id":368,"text":"Louisiana Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"preferred":false,"id":384675,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70185701,"text":"70185701 - 1997 - A rapid and simple method for estimating sulfate reduction activity and quantifying inorganic sulfides","interactions":[],"lastModifiedDate":"2023-01-12T21:42:40.319259","indexId":"70185701","displayToPublicDate":"1997-04-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":850,"text":"Applied and Environmental Microbiology","active":true,"publicationSubtype":{"id":10}},"title":"A rapid and simple method for estimating sulfate reduction activity and quantifying inorganic sulfides","docAbstract":"A simplified passive extraction procedure for quantifying reduced inorganic sulfur compounds from sediments and water is presented. This method may also be used for the estimation of sulfate reduction rates. Efficient extraction of FeS, FeS2, and S2- was obtained with this procedure; however, the efficiency for S0 depended on the form that was tested. Passive extraction can be used with samples containing up to 20 mg of reduced sulfur. We demonstrated the utility of this technique in a determination of both sulfate reduction rates and reduced inorganic sulfur pools in marine and freshwater sediments. A side-by-side comparison of the passive extraction method with the established single-step distillation technique yielded comparable results with a fraction of the effort.
No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b2153","usgsCitation":"Maldonado, F., and Nealey, L., 1997, Geologic studies in the Basin and Range-Colorado Plateau transition in southeastern Nevada, southwestern Utah, and northwestern Arizona, 1995: U.S. Geological Survey Bulletin 2153, Report: iv, 288 p.; 3 Plates: 21.83 × 15.24 inches or smaller, https://doi.org/10.3133/b2153.","productDescription":"Report: iv, 288 p.; 3 Plates: 21.83 × 15.24 inches or smaller","costCenters":[],"links":[{"id":95949,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/2153/plate-2_f.pdf","text":"Chapter F Plate 2","linkFileType":{"id":1,"text":"pdf"}},{"id":95948,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/2153/plate-1_g.pdf","text":"Chapter G Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":95947,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/2153/plate-1_f.pdf","text":"Chapter F Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":61026,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/2153/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":163279,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/2153/report-thumb.jpg"},{"id":401883,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22421.htm","text":"Palynology and ages of some Upper Cretaceous formations in the Markagunt and northwestern Kaiparowits Plateaus, southwestern Utah","linkFileType":{"id":5,"text":"html"}},{"id":481367,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22422.htm","text":"Significance of charophytes from the Lower Tertiary variegated and volcanoclastic units, Brian Head Formation, Casto Canyon area, southern Sevier Plateau, southwestern Utah","linkFileType":{"id":5,"text":"html"}},{"id":481368,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22425.htm","text":"The Paleocene Grand Castle Formation - 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Colorado Plateau transition zone, Utah","linkFileType":{"id":5,"text":"html"}},{"id":481373,"rank":13,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22461.htm","text":"Potassium-argon ages of Tertiary igneous rocks in the eastern Bull Valley Mountains and Pine Valley Mountains, southwestern Utah","linkFileType":{"id":5,"text":"html"}},{"id":481374,"rank":14,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22470.htm","text":"Local contraction along the Pahranagat shear system, southeastern Nevada","linkFileType":{"id":5,"text":"html"}},{"id":481375,"rank":15,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22471.htm","text":"Structural geometry resulting from episodic extension in the northern Chief Range area, eastern Nevada","linkFileType":{"id":5,"text":"html"}},{"id":481376,"rank":16,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22474.htm","text":"The Permian clastic sedimentary rocks of northwestern Arizona","linkFileType":{"id":5,"text":"html"}},{"id":481377,"rank":17,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22488.htm","text":"The role of lithosphere and asthenosphere in the genesis of Late Cenozoic volcanism at Diamond Valley and Veyo Volcano, southwestern Utah","linkFileType":{"id":5,"text":"html"}},{"id":481378,"rank":18,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_92821.htm","text":"The Brian Head Formation (revised) and selected Tertiary sedimentary rock units, Markagunt Plateau and adjacent areas, southwestern Utah","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Arizona, Nevada, Utah","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.16943359374999,\n 34.813803317113155\n ],\n [\n -111.357421875,\n 34.813803317113155\n ],\n [\n -111.357421875,\n 37.50972584293751\n ],\n [\n -116.16943359374999,\n 37.50972584293751\n ],\n [\n -116.16943359374999,\n 34.813803317113155\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db6880d8","contributors":{"authors":[{"text":"Maldonado, Florian fmaldona@usgs.gov","contributorId":805,"corporation":false,"usgs":true,"family":"Maldonado","given":"Florian","email":"fmaldona@usgs.gov","affiliations":[],"preferred":true,"id":210264,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nealey, L. David","contributorId":57092,"corporation":false,"usgs":true,"family":"Nealey","given":"L. David","affiliations":[],"preferred":false,"id":210265,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70209056,"text":"70209056 - 1997 - Mycoplasmal conjunctivitis in wild songbirds: The spread of a new contagious disease in a mobile host population","interactions":[],"lastModifiedDate":"2024-10-23T15:48:25.197239","indexId":"70209056","displayToPublicDate":"1997-03-31T12:22:59","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1493,"text":"Emerging Infectious Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Mycoplasmal conjunctivitis in wild songbirds: The spread of a new contagious disease in a mobile host population","docAbstract":"A new mycoplasmal conjunctivitis was first reported in wild house finches (Carpodacus mexicanus) in early 1994. The causative agent was identified as Mycoplasma gallisepticum (MG), a nonzoonotic pathogen of poultry that had not been associated with disease in wild songbirds. Since the initial observations of affected house finches in the mid-Atlantic region, the disease has become widespread and has been reported throughout the eastern United States and Canada. By late 1995, mycoplasmal conjunctivitis had spread to an additional species, the American goldfinch (Carduelis tristis). This new disease exemplifies the rapid spread of a pathogen following introduction into a mobile wildlife population and provides lessons that may apply to emerging human diseases.
","language":"English","publisher":"Centers for Disease Control and Prevention","doi":"10.3201/eid0301.970110","usgsCitation":"Fischer, J.R., Stallknecht, D.E., Luttrell, M.P., Dhondt, A.A., and Converse, K.A., 1997, Mycoplasmal conjunctivitis in wild songbirds: The spread of a new contagious disease in a mobile host population: Emerging Infectious Diseases, v. 3, no. 1, p. 69-71, https://doi.org/10.3201/eid0301.970110.","productDescription":"4 p.","startPage":"69","endPage":"71","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":479925,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.3201/eid0301.970110","text":"External Repository"},{"id":373193,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -59.765625,\n 45.398449976304086\n ],\n [\n -59.853515625,\n 47.040182144806664\n ],\n [\n -59.0625,\n 50.736455137010665\n ],\n [\n -55.634765625,\n 52.908902047770255\n ],\n [\n -58.095703125,\n 53.48804553605622\n ],\n [\n -63.6328125,\n 52.855864177853974\n ],\n [\n -66.533203125,\n 54.16243396806779\n ],\n [\n -64.3359375,\n 58.99531118795094\n ],\n [\n -66.09375,\n 58.95000823335702\n ],\n [\n -70.48828125,\n 60.930432202923335\n ],\n [\n -77.607421875,\n 62.59334083012024\n ],\n [\n -78.837890625,\n 59.17592824927136\n ],\n [\n -76.81640625,\n 56.022948079627454\n ],\n [\n -79.189453125,\n 54.7246201949245\n ],\n [\n -79.541015625,\n 51.56341232867588\n ],\n [\n -82.08984375,\n 52.855864177853974\n ],\n [\n -82.177734375,\n 55.1286490684888\n ],\n [\n -91.23046875,\n 57.326521225217064\n ],\n [\n -93.8671875,\n 57.136239319177434\n ],\n [\n -95.00976562499999,\n 49.61070993807422\n ],\n [\n -97.03125,\n 49.210420445650286\n ],\n [\n -96.50390625,\n 43.389081939117496\n ],\n [\n -94.658203125,\n 37.579412513438385\n ],\n [\n -94.921875,\n 34.379712580462204\n ],\n [\n -93.69140625,\n 29.84064389983441\n ],\n [\n -90.087890625,\n 29.075375179558346\n ],\n [\n -88.330078125,\n 29.53522956294847\n ],\n [\n -86.484375,\n 29.53522956294847\n ],\n [\n -84.0234375,\n 28.92163128242129\n ],\n [\n -81.298828125,\n 24.44714958973082\n ],\n [\n -79.716796875,\n 24.686952411999155\n ],\n [\n -80.68359375,\n 31.052933985705163\n ],\n [\n -74.267578125,\n 36.1733569352216\n ],\n [\n -72.50976562499999,\n 39.70718665682654\n ],\n [\n -68.994140625,\n 40.97989806962013\n ],\n [\n -69.697265625,\n 43.004647127794435\n ],\n [\n -67.236328125,\n 43.70759350405294\n ],\n [\n -65.7421875,\n 42.35854391749705\n ],\n [\n -59.765625,\n 45.398449976304086\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"3","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Fischer, John R.","contributorId":100326,"corporation":false,"usgs":true,"family":"Fischer","given":"John","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":784649,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stallknecht, David E.","contributorId":14323,"corporation":false,"usgs":false,"family":"Stallknecht","given":"David","email":"","middleInitial":"E.","affiliations":[{"id":7125,"text":"Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.","active":true,"usgs":false}],"preferred":false,"id":784650,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luttrell, M. Page","contributorId":23378,"corporation":false,"usgs":true,"family":"Luttrell","given":"M.","email":"","middleInitial":"Page","affiliations":[],"preferred":false,"id":784651,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dhondt, Andre A.","contributorId":93620,"corporation":false,"usgs":true,"family":"Dhondt","given":"Andre","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":784652,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Converse, Kathryn A. kathy_converse@usgs.gov","contributorId":16802,"corporation":false,"usgs":true,"family":"Converse","given":"Kathryn","email":"kathy_converse@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":false,"id":784653,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70207787,"text":"70207787 - 1997 - Review of two visual programming languages for simulation modeling","interactions":[],"lastModifiedDate":"2020-01-10T12:05:32","indexId":"70207787","displayToPublicDate":"1997-03-31T12:02:02","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5910,"text":"SWS Bulletin","printIssn":"0732-9393","active":true,"publicationSubtype":{"id":10}},"title":"Review of two visual programming languages for simulation modeling","docAbstract":"No abstract available.
","language":"English","publisher":"Society of Wetland Scientists","usgsCitation":"Carter, J., 1997, Review of two visual programming languages for simulation modeling: SWS Bulletin, v. 14, no. 1, p. 38-39.","productDescription":"2 p.","startPage":"38","endPage":"39","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":371161,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Carter, Jacoby 0000-0003-0110-0284 carterj@usgs.gov","orcid":"https://orcid.org/0000-0003-0110-0284","contributorId":2399,"corporation":false,"usgs":true,"family":"Carter","given":"Jacoby","email":"carterj@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":779327,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70007027,"text":"70007027 - 1997 - Safety of formalin treatments on warm- and coolwater fish eggs","interactions":[],"lastModifiedDate":"2012-12-18T14:52:28","indexId":"70007027","displayToPublicDate":"1997-03-31T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":853,"text":"Aquaculture","active":true,"publicationSubtype":{"id":10}},"title":"Safety of formalin treatments on warm- and coolwater fish eggs","docAbstract":"Formalin is widely used for treating fungal infections of fish eggs in intensive aquaculture operations. The use of formalin in the United States is only allowed on salmonid and esocid eggs unless a special exemption is granted for use on other species. This study was conducted to determine the safety of formalin treatments on eggs of representative warm- and coolwater fish species and data was used to support a request to allow the use of formalin on the eggs of warmwater and additional coolwater fish species. Non-eyed eggs of walleye (Stizostedion vitreum), common carp (Cyprinus carpio), white sucker (Catostomus commersoni), channel catfish (Ictalurus punctatus), and lake sturgeon (Acipenser fulvescens) were cultured in miniature egg hatching jars and treated for 45 min every-other-day with 1500, 4500, or 7500 μL L-1 formalin up to hatch. For all species tested, the percent hatch was greater in 1500 mu L L-1 treatment groups than in untreated controls. Walleye eggs were the least sensitive species and had a hatch of 87% in the 7500 mu L L-1 treatment. Lake sturgeon were the most sensitive species with a mean hatch of 54% in 1500 mu L L-1 treatments. Adequate margins of safety exist for standard treatments (1500 mu L L-1 for 15 min) on eggs of all species tested except lake sturgeon. Fungal infections drastically reduced or eliminated hatch in most control groups whereas most treated groups were free of infections. This confirms the efficacy of formalin as an fungicide. Published by Elsevier Science B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquaculture","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/S0044-8486(96)01447-0","collaboration":"Abstract has subscript/superscript to be fixed","usgsCitation":"Rach, J.J., Howe, G.E., and Schreier, T.M., 1997, Safety of formalin treatments on warm- and coolwater fish eggs: Aquaculture, v. 149, no. 3-4, p. 183-191, https://doi.org/10.1016/S0044-8486(96)01447-0.","productDescription":"9 p.","startPage":"183","endPage":"191","numberOfPages":"9","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":264119,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":261920,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0044-8486(96)01447-0"}],"country":"United States","volume":"149","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50d20caee4b08b071e771bca","contributors":{"authors":[{"text":"Rach, Jeff J.","contributorId":38875,"corporation":false,"usgs":true,"family":"Rach","given":"Jeff","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":355699,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howe, George E.","contributorId":102570,"corporation":false,"usgs":true,"family":"Howe","given":"George","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":355700,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schreier, Theresa M. 0000-0001-7722-6292 tschreier@usgs.gov","orcid":"https://orcid.org/0000-0001-7722-6292","contributorId":3344,"corporation":false,"usgs":true,"family":"Schreier","given":"Theresa","email":"tschreier@usgs.gov","middleInitial":"M.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":355698,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70209292,"text":"70209292 - 1997 - Application of the Modern Analog Technique (MAT) of sea surface temperature estimation to middle Pliocene North Pacific planktonic foraminifer assemblages","interactions":[],"lastModifiedDate":"2020-03-27T12:24:14","indexId":"70209292","displayToPublicDate":"1997-03-27T12:18:06","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2997,"text":"Palaeontologia Electronica","active":true,"publicationSubtype":{"id":10}},"title":"Application of the Modern Analog Technique (MAT) of sea surface temperature estimation to middle Pliocene North Pacific planktonic foraminifer assemblages","docAbstract":"Seventy-two samples from Deep Sea Drilling Project Sites 445 and 463 and Ocean Drilling Program Site 769 from the northwest Pacific Ocean were compared to 499 modern core top Pacific Ocean samples using the squared chord distance dissimilarity measure. Many samples show high levels of dissimilarity that can be explained by pervasive dissolution and/or evolution changing the composition of the fossil assemblages. Weighted averages of winter and summer sea surface temperatures (SST) from the nearest five modern analogs of each fossil-bearing sample were used to estimate Pliocene SST. Results show little to no middle Pliocene warming at low latitudes (Site 769) and warming of 2°C to 4°C in winter and possibly 1°C in summer just north of the Philippine Sea (Site 445). These data, when combined with other estimates of Pliocene SST in the northwest Pacific, suggest an enhanced meridional oceanic heat flow, similar to that found in the North Atlantic during the same part of the Pliocene.
","language":"English","doi":"10.26879/98003","usgsCitation":"Dowsett, H.J., and Robinson, M.M., 1997, Application of the Modern Analog Technique (MAT) of sea surface temperature estimation to middle Pliocene North Pacific planktonic foraminifer assemblages: Palaeontologia Electronica, p. 1-22, https://doi.org/10.26879/98003.","productDescription":"1.1.3a, 22 p.","startPage":"1","endPage":"22","costCenters":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":479927,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.26879/98003","text":"Publisher Index Page"},{"id":373600,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Pacific Ocean ","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -198.28125,\n -19.31114335506464\n ],\n [\n -203.90625,\n -48.92249926375823\n ],\n [\n -202.5,\n -64.77412531292872\n ],\n [\n -88.59374999999999,\n -52.482780222078205\n ],\n [\n -81.5625,\n -9.79567758282973\n ],\n [\n -122.34374999999999,\n 28.304380682962783\n ],\n [\n -184.21874999999997,\n 40.97989806962013\n ],\n [\n -205.3125,\n 43.068887774169625\n ],\n [\n -244.68749999999997,\n 28.304380682962783\n ],\n [\n -229.21874999999997,\n -11.178401873711772\n ],\n [\n -198.28125,\n -19.31114335506464\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Dowsett, Harry J. 0000-0003-1983-7524 hdowsett@usgs.gov","orcid":"https://orcid.org/0000-0003-1983-7524","contributorId":949,"corporation":false,"usgs":true,"family":"Dowsett","given":"Harry","email":"hdowsett@usgs.gov","middleInitial":"J.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":785916,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robinson, Marci M. 0000-0002-9200-4097 mmrobinson@usgs.gov","orcid":"https://orcid.org/0000-0002-9200-4097","contributorId":2082,"corporation":false,"usgs":true,"family":"Robinson","given":"Marci","email":"mmrobinson@usgs.gov","middleInitial":"M.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":785917,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70208989,"text":"70208989 - 1997 - Early Silurian radiolaria from northern Nevada, USA","interactions":[],"lastModifiedDate":"2020-03-10T11:01:48","indexId":"70208989","displayToPublicDate":"1997-03-10T10:35:48","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2673,"text":"Marine Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Early Silurian radiolaria from northern Nevada, USA","docAbstract":"Radiolarians recovered from three sites in the early Llandoverian Cherry Spring chert, north-central Nevada, provide the first Early Silurian radiolarian data from the conterminous United States. Two assemblages were recovered that contain abundant pylomate sphaerellarians, rotasphaerids, inaniguttids, and possible palaeoactinosphaerids. The pylomate taxa have an intermediate spine morphology with Cessipylorum and Aciferopylorum, bringing into question the present criteria for distinguishing these two genera. Rotasphaerids include both species of Rotasphaera and Secuicollacta, that have five primary rods per spine unit, similar to those present in Ordovician assemblages (Caradocian-Ashgillian) reported from Nevada and Australia. Oriundogutta is another common component shared between the Cherry Spring and Caradocian-Ashgillian age faunas. To a lesser extent, the Cherry Spring fauna resembles late Early-Late Silurian (Wenlockian-Ludlovian) assemblages that contain abundant inaniguttids and rotasphaerids. None of the younger species of inaniguttids have been recognized, however, and younger species of rotasphaerids differ in that they have six primary rods per spine unit and a more diverse spine morphology. These preliminary data indicate a stronger similarity between Late Ordovician and early Llandoverian assemblages than between early Llandoverian and Wenlockian-Ludlovian assemblages. The Cherry Spring chert faunas contain several distinct forms, such as Cessipylorum(?) sp. A and B, that may prove useful for biostratigraphic correlation.
","language":"English","publisher":"Elsevier","doi":"10.1016/S0377-8398(96)00026-6","usgsCitation":"Noble, P., Ketner, K.B., and McClellan, W., 1997, Early Silurian radiolaria from northern Nevada, USA: Marine Micropaleontology, v. 30, no. 1-3, p. 215-223, https://doi.org/10.1016/S0377-8398(96)00026-6.","productDescription":"9 p.","startPage":"215","endPage":"223","costCenters":[],"links":[{"id":373043,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Northern Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.56518554687499,\n 40.3549167507906\n ],\n [\n -114.04907226562499,\n 40.3549167507906\n ],\n [\n -114.04907226562499,\n 42.00848901572399\n ],\n [\n -115.56518554687499,\n 42.00848901572399\n ],\n [\n -115.56518554687499,\n 40.3549167507906\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"30","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Noble, P.J.","contributorId":15385,"corporation":false,"usgs":true,"family":"Noble","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":784431,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ketner, Keith B.","contributorId":957,"corporation":false,"usgs":true,"family":"Ketner","given":"Keith","email":"","middleInitial":"B.","affiliations":[],"preferred":true,"id":784432,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McClellan, W.","contributorId":223171,"corporation":false,"usgs":false,"family":"McClellan","given":"W.","email":"","affiliations":[],"preferred":false,"id":784433,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70073403,"text":"70073403 - 1997 - Permian chronostratigraphic subdivisions","interactions":[],"lastModifiedDate":"2014-01-16T16:24:28","indexId":"70073403","displayToPublicDate":"1997-03-01T16:11:13","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1582,"text":"Episodes","active":true,"publicationSubtype":{"id":10}},"title":"Permian chronostratigraphic subdivisions","docAbstract":"Names and boundary levels for series and stages of the Permian System, based on marine successions, have been approved by the Permian Subcommission, ICS. These are the Cisuralian, Guadalupian, and Lopingian Series and their constituent stages standardized respectively in the Urals, Southwest USA, and South China for the Lower; Middle, and Upper Permian.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Episodes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"International Union of Geological Sciences","publisherLocation":"Nottingham, U.K.","usgsCitation":"Yugan, J., Wardlaw, B.R., Glenister, B.F., and Kotlyar, G.V., 1997, Permian chronostratigraphic subdivisions: Episodes, v. 20, no. 1, p. 10-15.","productDescription":"6 p.","startPage":"10","endPage":"15","numberOfPages":"6","costCenters":[],"links":[{"id":281221,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281218,"type":{"id":15,"text":"Index Page"},"url":"https://www.episodes.co.in/www/backissues/201/201.htm"}],"country":"China;Russia;United States","otherGeospatial":"Ural Mountains","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,90.0 ], [ 180.0,90.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","volume":"20","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6ad8e4b0b29085103863","contributors":{"authors":[{"text":"Yugan, Jin","contributorId":40128,"corporation":false,"usgs":true,"family":"Yugan","given":"Jin","email":"","affiliations":[],"preferred":false,"id":488706,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wardlaw, Bruce R. bwardlaw@usgs.gov","contributorId":266,"corporation":false,"usgs":true,"family":"Wardlaw","given":"Bruce","email":"bwardlaw@usgs.gov","middleInitial":"R.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":488705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Glenister, Brian F.","contributorId":99469,"corporation":false,"usgs":true,"family":"Glenister","given":"Brian","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":488708,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kotlyar, Galina V.","contributorId":46420,"corporation":false,"usgs":true,"family":"Kotlyar","given":"Galina","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":488707,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":5223196,"text":"5223196 - 1997 - Estimating temporary emigration using capture-recapture data with Pollock's robust design","interactions":[],"lastModifiedDate":"2023-12-14T17:02:52.540954","indexId":"5223196","displayToPublicDate":"1997-03-01T12:17:47","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Estimating temporary emigration using capture-recapture data with Pollock's robust design","docAbstract":"Statistical inference for capture–recapture studies of open animal populations typically relies on the assumption that all emigration from the studied population is permanent. However, there are many instances in which this assumption is unlikely to be met. We define two general models for the process of temporary emigration: completely random and Markovian. We then consider effects of these two types of temporary emigration on Jolly–Seber estimators and on estimators arising from the full-likelihood approach to robust design data.
Capture–recapture data arising from Pollock’s robust design provide the basis for obtaining unbiased estimates of demographic parameters in the presence of temporary emigration, and for estimating the probability of temporary emigration. We present a likelihood-based approach to dealing with temporary emigration that permits estimation under different models of temporary emigration and yields tests for completely random and Markovian emigration. In addition, we use the relationship between capture probability estimates based on closed and open models under completely random temporary emigration to derive three ad hoc estimators for the probability of temporary emigration. Two of these should be especially useful in situations where capture probabilities are heterogeneous among individual animals. Ad hoc and full-likelihood estimators are illustrated for small-mammal capture–recapture data sets.
We believe that these models and estimators will be useful for testing hypotheses about the process of temporary emigration, for estimating demographic parameters in the presence of temporary emigration, and for estimating probabilities of temporary emigration. These latter estimates are frequently of ecological interest as indicators of animal movement and, in some sampling situations, as direct estimates of breeding probabilities and proportions.
","language":"English","publisher":"Ecological Society of America","doi":"10.1890/0012-9658(1997)078[0563:ETEUCR]2.0.CO;2","usgsCitation":"Kendall, W., Nichols, J.D., and Hines, J.E., 1997, Estimating temporary emigration using capture-recapture data with Pollock's robust design: Ecology, v. 78, no. 2, p. 563-578, https://doi.org/10.1890/0012-9658(1997)078[0563:ETEUCR]2.0.CO;2.","productDescription":"16 p.","startPage":"563","endPage":"578","numberOfPages":"16","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":503485,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://zotero.org/groups/5435545/items/38B73FQW","text":"External Repository"},{"id":196074,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"78","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fc7d9","contributors":{"authors":[{"text":"Kendall, W. L. 0000-0003-0084-9891","orcid":"https://orcid.org/0000-0003-0084-9891","contributorId":32880,"corporation":false,"usgs":true,"family":"Kendall","given":"W. L.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":338094,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nichols, James D. 0000-0002-7631-2890 jnichols@usgs.gov","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":200533,"corporation":false,"usgs":true,"family":"Nichols","given":"James","email":"jnichols@usgs.gov","middleInitial":"D.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":338093,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hines, James E. 0000-0001-5478-7230 jhines@usgs.gov","orcid":"https://orcid.org/0000-0001-5478-7230","contributorId":146530,"corporation":false,"usgs":true,"family":"Hines","given":"James","email":"jhines@usgs.gov","middleInitial":"E.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":338095,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70006532,"text":"70006532 - 1997 - Evaluation of estimation methods for organic carbon normalized sorption coefficients","interactions":[],"lastModifiedDate":"2026-03-16T15:35:43.610105","indexId":"70006532","displayToPublicDate":"1997-03-01T08:52:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3711,"text":"Water Environment Research","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of estimation methods for organic carbon normalized sorption coefficients","docAbstract":"A critically evaluated set of 94 soil water partition coefficients normalized to soil organic carbon content (Koc) is presented for 11 classes of organic chemicals. This data set is used to develop and evaluate Koc estimation methods using three different descriptors. The three types of descriptors used in predicting Koc were octanol/water partition coefficient (Kow), molecular connectivity (mXt) and linear solvation energy relationships (LSERs). The best results were obtained estimating Koc from Kow, though a slight improvement in the correlation coefficient was obtained by using a two-parameter regression with Kow and the third order difference term from mXt. Molecular connectivity correlations seemed to be best suited for use with specific chemical classes. The LSER provided a better fit than mXt but not as good as the correlation with Koc. The correlation to predict Koc from Kow was developed for 72 chemicals; log Koc = 0.903* log Kow + 0.094. This correlation accounts for 91% of the variability in the data for chemicals with log Kow ranging from 1.7 to 7.0. The expression to determine the 95% confidence interval on the estimated Koc is provided along with an example for two chemicals of different hydrophobicity showing the confidence interval of the retardation factor determined from the estimated Koc. The data showed that Koc is not likely to be applicable for chemicals with log Kow < 1.7. Finally, the Koc correlation developed using Kow as a descriptor was compared with three nonclass-specific correlations and two 'commonly used' class-specific correlations to determine which method(s) are most suitable.
","language":"English","publisher":"Water Environment Federation","doi":"10.2175/106143097X125281","usgsCitation":"Baker, J.R., Mihelcic, J.R., Luehrs, D.C., and Hickey, J.P., 1997, Evaluation of estimation methods for organic carbon normalized sorption coefficients: Water Environment Research, v. 69, no. 2, p. 136-145, https://doi.org/10.2175/106143097X125281.","productDescription":"10 p.","startPage":"136","endPage":"145","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":289162,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53b286e7e4b07b8813a55486","contributors":{"authors":[{"text":"Baker, James R.","contributorId":103187,"corporation":false,"usgs":true,"family":"Baker","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":354694,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mihelcic, James R.","contributorId":28534,"corporation":false,"usgs":true,"family":"Mihelcic","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":354692,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luehrs, Dean C.","contributorId":28498,"corporation":false,"usgs":true,"family":"Luehrs","given":"Dean","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":354691,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hickey, James P.","contributorId":83460,"corporation":false,"usgs":true,"family":"Hickey","given":"James","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":354693,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1001132,"text":"1001132 - 1997 - Relationship between waterfowl nutrition and condition on agricultural drainwater ponds in the Tulare Basin, California: Waterfowl body composition","interactions":[],"lastModifiedDate":"2026-04-27T16:41:59.568685","indexId":"1001132","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Relationship between waterfowl nutrition and condition on agricultural drainwater ponds in the Tulare Basin, California: Waterfowl body composition","docAbstract":"We examined carcass composition and proximate food composition of ruddy ducks (Oxyura jamaicensis), northern shovelers (Anas clypeata), and northern pintails (Anas acuta) wintering on agricultural drainwater ponds in California during 1983–84. Lipids varied seasonally in northern shovelers and northern pintails. Protein did not fluctuate except in ruddy ducks whose protein mass increased over winter, suggesting that some protein was catabolized prior to arrival on wintering areas or that a buildup of protein occurred prior to spring migration. Waterfowl diets varied among species and time, but the nutritional composition of the diets was relatively stable. Ruddy ducks and shovelers consumed mostly animal foods rich in protein (53–60%) and low in Nitrogen Free Extract (NFE) (1–7%). Pintail diets contained more NFE (23–38%) and less protein (14–38%) because of greater consumption of plant foods. Nutritional composition of pintail diets varied with lower protein consumption occurring from November through January.
","language":"English","publisher":"Springer Nature","doi":"10.1007/BF03160722","usgsCitation":"Euliss, N., Jarvis, R.L., and Gilmer, D., 1997, Relationship between waterfowl nutrition and condition on agricultural drainwater ponds in the Tulare Basin, California: Waterfowl body composition: Wetlands, v. 17, no. 1, p. 106-115, https://doi.org/10.1007/BF03160722.","productDescription":"10 p.","startPage":"106","endPage":"115","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133745,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Central Valley, Tulare Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.377197265625,\n 35.36665566526249\n ],\n [\n -118.8336181640625,\n 35.36665566526249\n ],\n [\n -118.8336181640625,\n 36.71687068791304\n ],\n [\n -120.377197265625,\n 36.71687068791304\n ],\n [\n -120.377197265625,\n 35.36665566526249\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"17","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db611f26","contributors":{"authors":[{"text":"Euliss, N.H. Jr.","contributorId":54917,"corporation":false,"usgs":true,"family":"Euliss","given":"N.H.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":310559,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jarvis, R. L.","contributorId":31697,"corporation":false,"usgs":false,"family":"Jarvis","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":310558,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gilmer, D.S.","contributorId":22270,"corporation":false,"usgs":true,"family":"Gilmer","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":310557,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1014767,"text":"1014767 - 1997 - Life history, latitudinal patterns, and status of the shortnose sturgeon, Acipenser brevirostrum","interactions":[],"lastModifiedDate":"2023-10-19T16:11:28.556934","indexId":"1014767","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","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":"Life history, latitudinal patterns, and status of the shortnose sturgeon, Acipenser brevirostrum","docAbstract":"Historically, shortnose sturgeon inhabited most major rivers on the Atlantic coast of North America south of the Saint John River, Canada. Today, only 16 populations may remain. Major anthropogenic impacts on shortnose sturgeon are blockage of spawning runs by dams, harvest of adults (bycatch and poaching), dredging of fresh/saltwater riverine reaches, regulation of river flows, and pollution. The pattern of anadromy (adult use of salt water) varies with latitude. The pattern may reflect bioenergetic adaptations to latitudinal differences between fresh and salt water habitats for thermal and foraging suitability. The greater adult abundance in northern and north-central populations likely reflects a historical difference with southern populations that is currently accentuated by increased anthropogenic impacts on southern populations. Adult abundance is less than the minimum estimated viable population abundance of 1000 adults for 5 of 11 surveyed populations, and all natural southern populations. Across the latitudinal range, spawning adults typically travel to about river km 200 or farther upstream. Dams built downstream of spawning reaches block spawning runs, and can divide amphidromous populations into up- and downstream segments. Conservation efforts should correct environmental and harvest impacts, not stock cultured fish into wild populations.
","language":"English","publisher":"Springer Link","doi":"10.1023/A:1007372913578","usgsCitation":"Kynard, B., 1997, Life history, latitudinal patterns, and status of the shortnose sturgeon, Acipenser brevirostrum: Environmental Biology of Fishes, v. 48, no. 1-4, p. 319-334, https://doi.org/10.1023/A:1007372913578.","productDescription":"16 p.","startPage":"319","endPage":"334","numberOfPages":"16","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":131388,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b16e4b07f02db6a53db","contributors":{"authors":[{"text":"Kynard, Boyd","contributorId":84234,"corporation":false,"usgs":true,"family":"Kynard","given":"Boyd","affiliations":[],"preferred":false,"id":321136,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70176678,"text":"70176678 - 1997 - Perceptions of species abundance, distribution, and diversity: Lessons from four decades of sampling on a government-managed reserve","interactions":[],"lastModifiedDate":"2016-09-26T11:39:54","indexId":"70176678","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Perceptions of species abundance, distribution, and diversity: Lessons from four decades of sampling on a government-managed reserve","docAbstract":"We examined data relative to species abundance, distribution, and diversity patterns of reptiles and amphibians to determine how perceptions change over time and with level of sampling effort. Location data were compiled on more than one million individual captures or observations of 98 species during a 44-year study period on the US Department of Energy’s (DOE) Savannah River Site National Environmental Research Park (SRS-NERP) in South Carolina. We suggest that perceptions of herpetofaunal species diversity are strongly dependent on level of effort and that land management decisions based on short-term data bases for some faunal groups could result in serious errors in environmental management. We provide evidence that acquiring information on biodiversity distribution patterns is compatible with multiyear spatially extensive research programs and also provide a perspective of what might be achieved if long-term, coordinated research efforts were instituted nationwide.
To conduct biotic surveys on government-managed lands, we recommend revisions in the methods used by government agencies to acquire and report biodiversity data. We suggest that government and industry employees engaged in biodiversity survey efforts develop proficiency in field identification for one or more major taxonomic groups and be encouraged to measure the status of populations quantitatively with consistent and reliable methodologies. We also suggest that widespread academic cooperation in the dissemination of information on regional patterns of biodiversity could result by establishment of a peer-reviewed, scientifically rigorous journal concerned with status and trends of the biota of the United States.
","language":"English","publisher":"Springer","doi":"10.1007/s002679900025","usgsCitation":"Gibbons, J., Burke, V.J., Lovich, J.E., Semlitsch, R.D., Tuberville, T.D., Bodie, J., Greene, J.L., Niewiarowski, P.H., Whiteman, H.H., Scott, D., Pechmann, J.H., Harrison, C.R., Bennett, S.H., Krenz, J.D., Mills, M.S., Buhlmann, K., Lee, J.R., Seigel, R.A., Tucker, A.D., Mills, T.M., Lamb, T., Dorcas, M.E., Congdon, J.D., Smith, M.H., Nelson, D.H., Dietsch, M.B., Hanlin, H.G., Ott, J.A., and Karapatakis, D.J., 1997, Perceptions of species abundance, distribution, and diversity: Lessons from four decades of sampling on a government-managed reserve: Environmental Management, v. 21, no. 2, p. 259-268, https://doi.org/10.1007/s002679900025.","productDescription":"10 p.","startPage":"259","endPage":"268","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":328963,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57fea85ae4b0824b2d151ba8","contributors":{"authors":[{"text":"Gibbons, J. Whitfield","contributorId":46584,"corporation":false,"usgs":true,"family":"Gibbons","given":"J. Whitfield","affiliations":[],"preferred":false,"id":649624,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burke, Vincent J.","contributorId":106563,"corporation":false,"usgs":true,"family":"Burke","given":"Vincent","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":649625,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lovich, Jefferey E.","contributorId":119706,"corporation":false,"usgs":true,"family":"Lovich","given":"Jefferey","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":649626,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Semlitsch, Raymond D.","contributorId":174906,"corporation":false,"usgs":false,"family":"Semlitsch","given":"Raymond","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":649627,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tuberville, Tracey D.","contributorId":95823,"corporation":false,"usgs":true,"family":"Tuberville","given":"Tracey","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":649628,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bodie, J. Russell","contributorId":174907,"corporation":false,"usgs":false,"family":"Bodie","given":"J. Russell","affiliations":[],"preferred":false,"id":649629,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Greene, Judith L.","contributorId":174908,"corporation":false,"usgs":false,"family":"Greene","given":"Judith","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":649630,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Niewiarowski, Peter H.","contributorId":174909,"corporation":false,"usgs":false,"family":"Niewiarowski","given":"Peter","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":649631,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Whiteman, Howard H.","contributorId":174910,"corporation":false,"usgs":false,"family":"Whiteman","given":"Howard","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":649632,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Scott, David E.","contributorId":15923,"corporation":false,"usgs":true,"family":"Scott","given":"David E.","affiliations":[],"preferred":false,"id":649633,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Pechmann, Joseph H. K.","contributorId":174911,"corporation":false,"usgs":false,"family":"Pechmann","given":"Joseph","email":"","middleInitial":"H. K.","affiliations":[],"preferred":false,"id":649634,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Harrison, Christopher R.","contributorId":174912,"corporation":false,"usgs":false,"family":"Harrison","given":"Christopher","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":649635,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Bennett, Stephen H.","contributorId":174913,"corporation":false,"usgs":false,"family":"Bennett","given":"Stephen","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":649636,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Krenz, John D.","contributorId":174914,"corporation":false,"usgs":false,"family":"Krenz","given":"John","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":649637,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Mills, Mark S.","contributorId":174915,"corporation":false,"usgs":false,"family":"Mills","given":"Mark","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":649638,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Buhlmann, Kurt A.","contributorId":167780,"corporation":false,"usgs":false,"family":"Buhlmann","given":"Kurt A.","affiliations":[{"id":12697,"text":"University of Georgia","active":true,"usgs":false}],"preferred":false,"id":649660,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Lee, John R.","contributorId":174916,"corporation":false,"usgs":false,"family":"Lee","given":"John","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":649661,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Seigel, Richard A.","contributorId":113363,"corporation":false,"usgs":true,"family":"Seigel","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":649662,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Tucker, Anton D.","contributorId":79232,"corporation":false,"usgs":false,"family":"Tucker","given":"Anton","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":649663,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Mills, Tony M.","contributorId":174917,"corporation":false,"usgs":false,"family":"Mills","given":"Tony","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":649664,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Lamb, Trip","contributorId":15146,"corporation":false,"usgs":true,"family":"Lamb","given":"Trip","email":"","affiliations":[],"preferred":false,"id":649665,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Dorcas, Michael E.","contributorId":100515,"corporation":false,"usgs":false,"family":"Dorcas","given":"Michael","email":"","middleInitial":"E.","affiliations":[{"id":12984,"text":"Department of Biology, Davidson College","active":true,"usgs":false}],"preferred":false,"id":649666,"contributorType":{"id":1,"text":"Authors"},"rank":22},{"text":"Congdon, Justin D.","contributorId":60563,"corporation":false,"usgs":true,"family":"Congdon","given":"Justin","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":649667,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"Smith, Michael H.","contributorId":111664,"corporation":false,"usgs":true,"family":"Smith","given":"Michael","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":649668,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Nelson, David H.","contributorId":174918,"corporation":false,"usgs":false,"family":"Nelson","given":"David","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":649669,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"Dietsch, M. Barbara","contributorId":174919,"corporation":false,"usgs":false,"family":"Dietsch","given":"M.","email":"","middleInitial":"Barbara","affiliations":[],"preferred":false,"id":649670,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Hanlin, Hugh G.","contributorId":174920,"corporation":false,"usgs":false,"family":"Hanlin","given":"Hugh","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":649671,"contributorType":{"id":1,"text":"Authors"},"rank":27},{"text":"Ott, Jeannine A.","contributorId":174921,"corporation":false,"usgs":false,"family":"Ott","given":"Jeannine","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":649672,"contributorType":{"id":1,"text":"Authors"},"rank":28},{"text":"Karapatakis, Deno J.","contributorId":174922,"corporation":false,"usgs":false,"family":"Karapatakis","given":"Deno","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":649673,"contributorType":{"id":1,"text":"Authors"},"rank":29}]}}
,{"id":70019992,"text":"70019992 - 1997 - Fish assemblages and environmental correlates in least-disturbed streams of the upper Snake River basin","interactions":[],"lastModifiedDate":"2026-03-23T16:29:23.397755","indexId":"70019992","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","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":"Fish assemblages and environmental correlates in least-disturbed streams of the upper Snake River basin","docAbstract":"Fish assemblages and environmental variables were evaluated from 37 least‐disturbed, 1st‐ through 6th‐order streams and springs in the upper Snake River basin, western USA. Data were collected as part of the efforts by the U.S. Geological Survey National Water Quality Assessment Program and the Idaho State University Stream Ecology Center to characterize aquatic biota and associated habitats in least‐disturbed coldwater streams. Geographically, the basin comprises four ecoregions. Environmental variables constituting various spatial scales, from watershed characteristics to instream habitat measures, were used to examine distribution patterns in fish assemblages. Nineteen fish species in the families Salmonidae, Cottidae, Cyprinidae, and Catostomidae were collected. Multivariate analyses showed high overlap in stream fish assemblages among the ecoregions. Major environmental factors determining species distributions in the basin were stream gradient, watershed size, conductivity, and percentage of the watershed covered by forest. Lowland streams (below 1,600 m in elevation), located mostly in the Snake River Basin/High Desert ecoregion, displayed different fish assemblages than upland streams (above 2,000 m elevation) in the Northern Rockies, Middle Rockies, and Northern Basin and Range ecoregions. For example, cottids were not found in streams above 2,000 m in elevation. In addition, distinct fish assemblages were found in tributaries upstream and downstream from the large waterfall, Shoshone Falls, on the Snake River. Fish metrics explaining most of the variation among sites included the total number of species, number of native species, number of salmonid species, percent introduced species, percent cottids, and percent salmonids. Springs also exhibited different habitat conditions and fish assemblages than streams. The data suggest that the evolutionary consequences of geographic features and fish species introductions transcend the importance of ecoregion boundaries on fish distributions in the upper Snake River basin.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1997)126<0200:FAAECI>2.3.CO;2","issn":"00028487","usgsCitation":"Maret, T., Robinson, C., and Minshall, G., 1997, Fish assemblages and environmental correlates in least-disturbed streams of the upper Snake River basin: Transactions of the American Fisheries Society, v. 126, no. 2, p. 200-216, https://doi.org/10.1577/1548-8659(1997)126<0200:FAAECI>2.3.CO;2.","productDescription":"17 p.","startPage":"200","endPage":"216","costCenters":[],"links":[{"id":228223,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho, Oregon, Washington, Wyoming","otherGeospatial":"Snake River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -118.76618139949029,\n 46.67941430741857\n ],\n [\n -118.79091092050712,\n 46.19831995389289\n ],\n [\n -117.12894612481163,\n 46.218990048936604\n ],\n [\n -117.44282523369402,\n 44.519576080969514\n ],\n [\n -117.09834257880576,\n 43.01389858855194\n ],\n [\n -114.20696991607171,\n 42.24555043192322\n ],\n [\n -111.30704316534121,\n 43.039739129573945\n ],\n [\n -109.99515381463235,\n 44.586995815661865\n ],\n [\n -110.83314574763486,\n 44.636811584646445\n ],\n [\n -112.3134180701875,\n 43.343896538397246\n ],\n [\n -115.16211720443145,\n 43.11818977545281\n ],\n [\n -116.5289883663885,\n 44.17283078351555\n ],\n [\n -116.45989112825143,\n 45.89550928414982\n ],\n [\n -116.80599175079654,\n 46.646691597012705\n ],\n [\n -117.75015845308404,\n 46.75146501565315\n ],\n [\n -118.76618139949029,\n 46.67941430741857\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"126","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a107de4b0c8380cd53cc1","contributors":{"authors":[{"text":"Maret, T.R.","contributorId":9015,"corporation":false,"usgs":true,"family":"Maret","given":"T.R.","affiliations":[],"preferred":false,"id":384628,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robinson, C.T.","contributorId":80438,"corporation":false,"usgs":true,"family":"Robinson","given":"C.T.","email":"","affiliations":[],"preferred":false,"id":384630,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Minshall, G.W.","contributorId":16381,"corporation":false,"usgs":true,"family":"Minshall","given":"G.W.","email":"","affiliations":[],"preferred":false,"id":384629,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":67408,"text":"i2479 - 1997 - Geologic map of the Ursine-Panaca Summit-Deer Lodge area, Lincoln County, Nevada and Iron County, Utah","interactions":[],"lastModifiedDate":"2012-02-10T00:11:16","indexId":"i2479","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2479","subseriesTitle":"NONE","title":"Geologic map of the Ursine-Panaca Summit-Deer Lodge area, Lincoln County, Nevada and Iron County, Utah","language":"ENGLISH","doi":"10.3133/i2479","usgsCitation":"Williams, V.S., Best, M.G., and Keith, J.D., 1997, Geologic map of the Ursine-Panaca Summit-Deer Lodge area, Lincoln County, Nevada and Iron County, Utah: U.S. Geological Survey IMAP 2479, 1 map :col. ;56 x 44 cm., on sheet 94 x 137 cm., folded in envelope 30 x 24 cm., https://doi.org/10.3133/i2479.","productDescription":"1 map :col. ;56 x 44 cm., on sheet 94 x 137 cm., folded in envelope 30 x 24 cm.","costCenters":[],"links":[{"id":108319,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13040.htm","linkFileType":{"id":5,"text":"html"},"description":"13040"},{"id":188741,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"50000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.25,37.75 ], [ -114.25,38 ], [ -114,38 ], [ -114,37.75 ], [ -114.25,37.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a1bc","contributors":{"authors":[{"text":"Williams, V. S.","contributorId":8876,"corporation":false,"usgs":true,"family":"Williams","given":"V.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":276141,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Best, M. G.","contributorId":57843,"corporation":false,"usgs":true,"family":"Best","given":"M.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":276143,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keith, J. D.","contributorId":32525,"corporation":false,"usgs":true,"family":"Keith","given":"J.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":276142,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70185282,"text":"70185282 - 1997 - Estimating ground-water recharge from streamflow hydrographs for a small mountain watershed in a temperate humid climate, New Hampshire, USA","interactions":[],"lastModifiedDate":"2017-03-17T14:42:43","indexId":"70185282","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Estimating ground-water recharge from streamflow hydrographs for a small mountain watershed in a temperate humid climate, New Hampshire, USA","docAbstract":"Hydrographs of stream discharge were analyzed to determine ground-water recharge for two small basins draining into Mirror Lake, New Hampshire. Two methods of hydrograph analysis developed for determining ground-water recharge were evaluated, the instantaneous recharge method and the constant recharge method. For the instantaneous recharge method, recharge is assumed to be instantaneous and uniform over the basin. For the constant recharge method, recharge is assumed to be constant and uniform over the basin for a period of weeks to months. Both methods require that a ground-water recession slope be determined. The recession slope is used directly in the calculation for the instantaneous recharge method, and it is used as a base of reference for fitting a type curve in the constant recharge method. Results of the study indicated that the estimates of ground-water recharge for both methods agree to within about 10 percent. Two approaches to the instantaneous recharge method, manual and automated, were also evaluated, and the results were statistically similar.
The baseflow component of streamflow commonly is assumed to be equivalent to ground-water recharge; therefore, two methods developed for determining the baseflow component of streamflow, graphical partitioning and digital filtering, were evaluated also. Baseflow values determined by graphical partitioning of hydrographs were about 25 percent less than the ground-water recharge values. Baseflow values determined by two different approaches to the mathematical digital filtering method were generally less than baseflow determined by graphical partitioning. However, one of the approaches to digital filtering agreed reasonably well with graphical partitioning if an appropriate filter constant was used. The other approach to digital filtering resulted in baseflow values that were much less than the other baseflow values and was therefore deemed inappropriate for use on these small mountain watersheds.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.1997.tb00086.x","usgsCitation":"Mau, D.P., and Winter, T.C., 1997, Estimating ground-water recharge from streamflow hydrographs for a small mountain watershed in a temperate humid climate, New Hampshire, USA: Groundwater, v. 35, no. 2, p. 291-304, https://doi.org/10.1111/j.1745-6584.1997.tb00086.x.","productDescription":"14 p. ","startPage":"291","endPage":"304","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":337820,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"2","noUsgsAuthors":false,"publicationDate":"2005-08-04","publicationStatus":"PW","scienceBaseUri":"58ccf5a0e4b0849ce97f0d02","contributors":{"authors":[{"text":"Mau, David P. dpmau@usgs.gov","contributorId":457,"corporation":false,"usgs":true,"family":"Mau","given":"David","email":"dpmau@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":685016,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Winter, Thomas C.","contributorId":84736,"corporation":false,"usgs":true,"family":"Winter","given":"Thomas","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":685017,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":2093,"text":"wsp2439 - 1997 - Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, a seepage lake in Polk County, Florida","interactions":[{"subject":{"id":31830,"text":"ofr9326 - 1994 - Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, Florida, October 1985-September 1986","indexId":"ofr9326","publicationYear":"1994","noYear":false,"title":"Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, Florida, October 1985-September 1986"},"predicate":"SUPERSEDED_BY","object":{"id":2093,"text":"wsp2439 - 1997 - Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, a seepage lake in Polk County, Florida","indexId":"wsp2439","publicationYear":"1997","noYear":false,"title":"Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, a seepage lake in Polk County, Florida"},"id":1}],"lastModifiedDate":"2012-02-02T00:05:23","indexId":"wsp2439","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2439","title":"Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, a seepage lake in Polk County, Florida","docAbstract":"A detailed hydrologic budget was constructed of a seepage lake of sinkhole origin in the karst terrain of central Florida. During the drought period studied, lake evaporation computed by the energy-budget and mass-transfer methods was the largest component in the budget, followed by rainfall. Ground-water inflow contributed about one-third of the total inflow. Lake leakage was about one-fourth of the evaporative losses and was increased substantially by pumping from the Upper Floridan aquifer.","language":"ENGLISH","publisher":"U.S. G.P.O.,","doi":"10.3133/wsp2439","usgsCitation":"Lee, T., and Swancar, A., 1997, Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, a seepage lake in Polk County, Florida: U.S. Geological Survey Water Supply Paper 2439, vi, 61 p. :ill., maps ;28 cm., https://doi.org/10.3133/wsp2439.","productDescription":"vi, 61 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":22,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wsp2439/","linkFileType":{"id":5,"text":"html"}},{"id":138166,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abae4b07f02db671ed6","contributors":{"authors":[{"text":"Lee, Terrie Mackin","contributorId":49776,"corporation":false,"usgs":true,"family":"Lee","given":"Terrie Mackin","affiliations":[],"preferred":false,"id":144665,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swancar, Amy aswancar@usgs.gov","contributorId":450,"corporation":false,"usgs":true,"family":"Swancar","given":"Amy","email":"aswancar@usgs.gov","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":144664,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70019874,"text":"70019874 - 1997 - Constraints on establishment of plains cottonwood in an urban riparian preserve","interactions":[],"lastModifiedDate":"2026-04-27T16:53:58.353149","indexId":"70019874","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Constraints on establishment of plains cottonwood in an urban riparian preserve","docAbstract":"Plot sampling and hydraulic modeling were combined to investigate establishment and survival of plains cottonwood along Boulder Creek, an urban stream on the Colorado Plains. We tested the hypothesis that establishment is limited to bare, moist surfaces produced by spring flooding in the current year. No cottonwood germination was observed in 1989 when peak flow was low. A moderate peak of 11.9 m3/s in 1990 resulted in cottonwood establishment on surfaces inundated by discharges less than 15 m3/s. Surviving sapling cottonwoods established before 1989 occurred on surfaces inundated by discharges of 15–31 m3/s and dated to years with peak flows over 15 m3/s. Since 1969, establishment of cottonwood has been limited to a floodplain 21 m wide. Flow regulation and channel stabilization upstream and downstream of the study area have reduced the channel movement and overbank flooding that otherwise would have created bare, moist sites suitable for cottonwood establishment across a wider area. GIS analysis of aerial photographs shows that between 1937 and 1992 the channel has not moved and forest has encroached upon formerly open areas near the channel. A terrace, 317 m wide, is now dominated by trees that can reproduce in the absence of disturbance, especially the exotic crack willow.
","language":"English","publisher":"Springer Nature","doi":"10.1007/BF03160725","issn":"02775212","usgsCitation":"Auble, G., Scott, M.L., Friedman, J.M., Back, J., and Lee, V., 1997, Constraints on establishment of plains cottonwood in an urban riparian preserve: Wetlands, v. 17, no. 1, p. 138-148, https://doi.org/10.1007/BF03160725.","productDescription":"11 p.","startPage":"138","endPage":"148","costCenters":[],"links":[{"id":228216,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","city":"Boulder","otherGeospatial":"Boulder Creek","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -105.19807364185746,\n 40.05091978969946\n ],\n [\n -105.19807364185746,\n 40.047803770452646\n ],\n [\n -105.17798662720091,\n 40.047803770452646\n ],\n [\n -105.17798662720091,\n 40.05091978969946\n ],\n [\n -105.19807364185746,\n 40.05091978969946\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"17","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fa0be4b0c8380cd4d8d2","contributors":{"authors":[{"text":"Auble, G.T.","contributorId":19505,"corporation":false,"usgs":true,"family":"Auble","given":"G.T.","email":"","affiliations":[],"preferred":false,"id":384236,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, M. L.","contributorId":75090,"corporation":false,"usgs":true,"family":"Scott","given":"M.","middleInitial":"L.","affiliations":[],"preferred":false,"id":384240,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Friedman, Jonathan M. 0000-0002-1329-0663","orcid":"https://orcid.org/0000-0002-1329-0663","contributorId":44495,"corporation":false,"usgs":true,"family":"Friedman","given":"Jonathan","middleInitial":"M.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":384239,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Back, J.","contributorId":29700,"corporation":false,"usgs":true,"family":"Back","given":"J.","email":"","affiliations":[],"preferred":false,"id":384238,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lee, V.J.","contributorId":23895,"corporation":false,"usgs":true,"family":"Lee","given":"V.J.","email":"","affiliations":[],"preferred":false,"id":384237,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70197195,"text":"70197195 - 1997 - Classification of mineral deposits into types using mineralogy with a probabilistic neural network","interactions":[],"lastModifiedDate":"2018-05-21T16:40:56","indexId":"70197195","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2879,"text":"Nonrenewable Resources","active":true,"publicationSubtype":{"id":10}},"title":"Classification of mineral deposits into types using mineralogy with a probabilistic neural network","docAbstract":"In order to determine whether it is desirable to quantify mineral-deposit models further, a test of the ability of a probabilistic neural network to classify deposits into types based on mineralogy was conducted. Presence or absence of ore and alteration mineralogy in well-typed deposits were used to train the network. To reduce the number of minerals considered, the analyzed data were restricted to minerals present in at least 20% of at least one deposit type. An advantage of this restriction is that single or rare occurrences of minerals did not dominate the results. Probabilistic neural networks can provide mathematically sound confidence measures based on Bayes theorem and are relatively insensitive to outliers. Founded on Parzen density estimation, they require no assumptions about distributions of random variables used for classification, even handling multimodal distributions. They train quickly and work as well as, or better than, multiple-layer feedforward networks. Tests were performed with a probabilistic neural network employing a Gaussian kernel and separate sigma weights for each class and each variable. The training set was reduced to the presence or absence of 58 reported minerals in eight deposit types. The training set included: 49 Cyprus massive sulfide deposits; 200 kuroko massive sulfide deposits; 59 Comstock epithermal vein gold districts; 17 quartzalunite epithermal gold deposits; 25 Creede epithermal gold deposits; 28 sedimentary-exhalative zinc-lead deposits; 28 Sado epithermal vein gold deposits; and 100 porphyry copper deposits. The most common training problem was the error of classifying about 27% of Cyprus-type deposits in the training set as kuroko. In independent tests with deposits not used in the training set, 88% of 224 kuroko massive sulfide deposits were classed correctly, 92% of 25 porphyry copper deposits, 78% of 9 Comstock epithermal gold-silver districts, and 83% of six quartzalunite epithermal gold deposits were classed correctly. Across all deposit types, 88% of deposits in the validation dataset were correctly classed. Misclassifications were most common if a deposit was characterized by only a few minerals, e.g., pyrite, chalcopyrite,and sphalerite. The success rate jumped to 98% correctly classed deposits when just two rock types were added. Such a high success rate of the probabilistic neural network suggests that not only should this preliminary test be expanded to include other deposit types, but that other deposit features should be added.
","language":"English","publisher":"Springer","doi":"10.1007/BF02816922","usgsCitation":"Singer, D.A., and Kouda, R., 1997, Classification of mineral deposits into types using mineralogy with a probabilistic neural network: Nonrenewable Resources, v. 6, no. 1, p. 27-32, https://doi.org/10.1007/BF02816922.","productDescription":"6 p.","startPage":"27","endPage":"32","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":354371,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b15971de4b092d9651e2228","contributors":{"authors":[{"text":"Singer, Donald A. dsinger@usgs.gov","contributorId":5601,"corporation":false,"usgs":true,"family":"Singer","given":"Donald","email":"dsinger@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":735965,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kouda, Ryoichi","contributorId":198036,"corporation":false,"usgs":false,"family":"Kouda","given":"Ryoichi","email":"","affiliations":[],"preferred":false,"id":735966,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70185277,"text":"70185277 - 1997 - Anaerobic degradation of benzene in diverse anoxic environments","interactions":[],"lastModifiedDate":"2017-08-26T14:38:36","indexId":"70185277","displayToPublicDate":"1997-02-27T00:00:00","publicationYear":"1997","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":"Anaerobic degradation of benzene in diverse anoxic environments","docAbstract":"Benzene has often been observed to be resistant to microbial degradation under anoxic conditions. A number of recent studies, however, have demonstrated that anaerobic benzene utilization can occur. This study extends the previous reports of anaerobic benzene degradation to sediments that varied with respect to contamination input, predominant redox condition, and salinity. In spite of differences in methodology, microbial degradation of benzene was noted in slurries constructed with sediments from various geographical locations and range from aquifer sands to fine-grained estuarine muds, under methanogenic, sulfate-reducing, and iron-reducing conditions. In aquifer sediments under methanogenic conditions, benzene loss was concomitant with methane production, and microbial utilization of [14C]benzene yielded 14CO2 and 14CH4. In slurries with estuarine and aquifer sediments under sulfate-reducing conditions, the loss of sulfate in amounts consistent with the stoichiometric degradation of benzene or the conversion of [14C]benzene to 14CO2 indicates that benzene was mineralized. Benzene loss also occurred in the presence of Fe(III) in sediments from freshwater environments. Microbial benzene utilization, however, was not observed under denitrifying conditions. These results indicate that the potential for the anaerobic degradation of benzene, which was once thought to be resistant to non-oxygenase attack, exists in a variety of aquatic sediments from widely distributed locations.
","language":"English","publisher":"American Chemical Society","doi":"10.1021/es960506a","usgsCitation":"Kazumi, J., Caldwell, M., Suflita, J., Lovely, D., and Young, L., 1997, Anaerobic degradation of benzene in diverse anoxic environments: Environmental Science & Technology, v. 31, no. 3, p. 813-818, https://doi.org/10.1021/es960506a.","productDescription":"6 p.","startPage":"813","endPage":"818","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":337814,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"3","noUsgsAuthors":false,"publicationDate":"1997-02-27","publicationStatus":"PW","scienceBaseUri":"58ccf5a0e4b0849ce97f0d04","contributors":{"authors":[{"text":"Kazumi, J.","contributorId":189493,"corporation":false,"usgs":false,"family":"Kazumi","given":"J.","email":"","affiliations":[],"preferred":false,"id":684988,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Caldwell, M.E.","contributorId":189494,"corporation":false,"usgs":false,"family":"Caldwell","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":684989,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Suflita, J.M.","contributorId":83303,"corporation":false,"usgs":true,"family":"Suflita","given":"J.M.","affiliations":[],"preferred":false,"id":684990,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lovely, D.R.","contributorId":189429,"corporation":false,"usgs":false,"family":"Lovely","given":"D.R.","affiliations":[],"preferred":false,"id":684991,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Young, L.Y.","contributorId":76547,"corporation":false,"usgs":true,"family":"Young","given":"L.Y.","email":"","affiliations":[],"preferred":false,"id":684992,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70185300,"text":"70185300 - 1997 - Chemical factors influencing colloid-facilitated transport of contaminants in porous media","interactions":[],"lastModifiedDate":"2017-08-26T14:37:48","indexId":"70185300","displayToPublicDate":"1997-02-27T00:00:00","publicationYear":"1997","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":"Chemical factors influencing colloid-facilitated transport of contaminants in porous media","docAbstract":"The effects of colloids on the transport of two strongly sorbing solutes![\"\"](\"http://pubs.acs.org/entityImage/legacy/sbd.gif\")
a hydrophobic organic compound, phenanthrene, and a metal ion, Ni2+were studied in sand-packed laboratory columns under different pH and ionic strength conditions. Two types of column experiments were performed as follows: (i) sorption/mobilization experiments where the contaminant was first sorbed in the column under conditions where no colloids were released and mobilized under conditions where colloids were released as a result of ionic strength reduction in the influent; and (ii) transport experiments where the contaminant, dissolved or sorbed on colloids, was injected into columns packed with a strongly sorbing porous medium. In the first type of experiment, contaminant mobilization was significant only when all releasable colloids were flushed from the column. In all other cases, although high colloid particle concentrations were encountered, there was no marked effect on total contaminant concentrations. In the second type of experiment, colloid deposition efficiencies were shown to control the enhancement of transport. The deposition efficiency was a function of the pH (for a high organic content sand) and of the contaminant concentration (for a charged species such as Ni2+).
","language":"English","publisher":"American Chemical Society","doi":"10.1021/es9600643","usgsCitation":"Roy, S.B., and Dzombak, D.A., 1997, Chemical factors influencing colloid-facilitated transport of contaminants in porous media: Environmental Science & Technology, v. 31, no. 3, p. 656-664, https://doi.org/10.1021/es9600643.","productDescription":"9 p. ","startPage":"656","endPage":"664","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":337841,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"3","noUsgsAuthors":false,"publicationDate":"1997-02-27","publicationStatus":"PW","scienceBaseUri":"58d0ea1ce4b0236b68f6737f","contributors":{"authors":[{"text":"Roy, Sujoy B.","contributorId":189533,"corporation":false,"usgs":false,"family":"Roy","given":"Sujoy","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":685079,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dzombak, David A.","contributorId":189534,"corporation":false,"usgs":false,"family":"Dzombak","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":685080,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1014783,"text":"1014783 - 1997 - The effect of diet on dorsal fin erosion in steelhead trout (Oncorhynchus mykiss)","interactions":[],"lastModifiedDate":"2023-08-04T16:18:35.823391","indexId":"1014783","displayToPublicDate":"1997-02-03T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":853,"text":"Aquaculture","active":true,"publicationSubtype":{"id":10}},"displayTitle":"The effect of diet on dorsal fin erosion in steelhead trout (Oncorhynchus mykiss)","title":"The effect of diet on dorsal fin erosion in steelhead trout (Oncorhynchus mykiss)","docAbstract":"A 2 × 2 factorial experiment of diet type (krill vs. fish meal) and steroid supplementation (0 vs. 30 μg 17α-methyltestosterone kg−) was conducted to determine the effects on dorsal fin erosion in steelhead trout. Triplicate tanks of 250 fry were fed one of the four diets at a rate calculated to produce 115 g fish in 34 weeks. Fish were transferred to larger tanks when mean density index reached 0.40. Dorsal fin index (DFI, measured as mean dorsal fin height × 100/total fish length) was greater (P < 0.001) among fish fed krill-based diets than for fish fed fish-based diets at weeks 12, 22, and 34 of the trial. Added testosterone decreased (P = 0.04) DPI among fish fed the krill diet at week 12 but otherwise had no effect on fin condition. Addition of testosterone to either diet type decreased (P = 0.02) critical thermal maximum, which is a measure of fish resistance to thermal stress. The results suggest that diet composition can influence the rate of dorsal fin erosion in steelhead trout through a metabolic, behavioral, or combined change.
","language":"English","publisher":"Elsevier","doi":"10.1016/S0044-8486(97)00133-6","usgsCitation":"Lellis, W.A., and Barrows, F.T., 1997, The effect of diet on dorsal fin erosion in steelhead trout (Oncorhynchus mykiss): Aquaculture, v. 156, no. 3-4, p. 229-240, https://doi.org/10.1016/S0044-8486(97)00133-6.","productDescription":"12 p.","startPage":"229","endPage":"240","numberOfPages":"12","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":130734,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"156","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4c4a","contributors":{"authors":[{"text":"Lellis, William A. 0000-0001-7806-2904 wlellis@usgs.gov","orcid":"https://orcid.org/0000-0001-7806-2904","contributorId":2369,"corporation":false,"usgs":true,"family":"Lellis","given":"William","email":"wlellis@usgs.gov","middleInitial":"A.","affiliations":[{"id":506,"text":"Office of the AD Ecosystems","active":true,"usgs":true}],"preferred":true,"id":321180,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barrows, Frederic T.","contributorId":172541,"corporation":false,"usgs":false,"family":"Barrows","given":"Frederic","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":321181,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70246545,"text":"70246545 - 1997 - Selection of the Mars Pathfinder landing site","interactions":[],"lastModifiedDate":"2023-07-07T15:58:22.728939","indexId":"70246545","displayToPublicDate":"1997-02-01T10:55:38","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":10766,"text":"Journal of Geophysical Research Planets","active":true,"publicationSubtype":{"id":10}},"title":"Selection of the Mars Pathfinder landing site","docAbstract":"The Mars Pathfinder spacecraft will land on a depositional fan near the mouth of the catastrophic outflow channel, Ares Vallis (19.5°N, 32.8°W). This site offers the prospect of analyzing a variety of rock types from the ancient cratered highlands, intermediate-age ridged plains, and reworked channel deposits. Analyses of these rocks by Pathfinder instruments will enable first-order scientific questions to be addressed, such as differentiation of the crust, the development of weathering products, and the nature of the early environment, as well as their subsequent evolution on Mars. Constraints imposed by (1) spacecraft and rover designs (which are robust), (2) entry, descent, and landing, (3) scientific potential at various sites, and (4) safety were important considerations in site selection. Engineering constraints require a 70 km by 200 km smooth, flat (low slopes) area located between 10° and 20°N that is below 0 km elevation, with average radar reflectivity, little dust, and moderate rock abundance. Three regions on Mars are between 10° and 20°N and below 0 km elevation: Chryse, Amazonis, and Isidis-Elysium. Science considerations favor sites at the mouths of outflow channels (grab bag sites offer an assay of rock types on Mars), highland sites (early crustal differentiation and climate), and sites covered with dark (unoxidized) material. Sites are considered safe if they are clearly below 0 km elevation, appear acceptably free of hazards in high-resolution (<50 m/pixel) Viking orbiter images and have acceptable reflectivity and roughness at radar wavelengths, thermal inertia, rock abundance, red to violet ratio, and albedo. Recent 3.5-cm wavelength radar observations were used to verify elevation, reflectivity, and roughness within the landing ellipses. Three sites meet all of these criteria: Ares Vallis, Tritonis Lacus, and Isidis. Although Isidis appears to be safer than Tritonis and Ares, the greater scientific potential at Ares Vallis resulted in its selection. Comparisons of the Grand Coulee (channel) and the depositional Ephrata Fan of the Channeled Scabland in eastern Washington, with Ares Vallis and its depositional fan also suggest the Ares Vallis landing site is safe and scientifically interesting.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/96JE03318","usgsCitation":"Golombek, M.P., Cook, R.A., Moore, H., and Parker, T.J., 1997, Selection of the Mars Pathfinder landing site: Journal of Geophysical Research Planets, v. 102, no. E2, p. 3967-3988, https://doi.org/10.1029/96JE03318.","productDescription":"22 p.","startPage":"3967","endPage":"3988","costCenters":[],"links":[{"id":479928,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/96je03318","text":"Publisher Index Page"},{"id":418768,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"102","issue":"E2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Golombek, M. P.","contributorId":173337,"corporation":false,"usgs":false,"family":"Golombek","given":"M.","email":"","middleInitial":"P.","affiliations":[{"id":24701,"text":"JPL, SUNY Geneseo","active":true,"usgs":false}],"preferred":false,"id":877107,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cook, R. A.","contributorId":211044,"corporation":false,"usgs":false,"family":"Cook","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":877108,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moore, H. J.","contributorId":71962,"corporation":false,"usgs":true,"family":"Moore","given":"H. J.","affiliations":[],"preferred":false,"id":877109,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Parker, Thomas J. tparker@usgs.gov","contributorId":2908,"corporation":false,"usgs":true,"family":"Parker","given":"Thomas","email":"tparker@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":877110,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70201378,"text":"70201378 - 1997 - The imager for Mars Pathfinder experiment","interactions":[],"lastModifiedDate":"2018-12-13T10:31:18","indexId":"70201378","displayToPublicDate":"1997-02-01T10:27:19","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":" The imager for Mars Pathfinder experiment","docAbstract":"The imager for Mars Pathfinder (IMP), a stereoscopic, multispectral camera, is described in terms of its capabilities for studying the Martian environment. The camera's two eyes, separated by 15.0 cm, provide the camera with range‐finding ability. Each eye illuminates half of a single CCD detector with a field of view of 14.4×14.0° and has 12 selectable filters. The ƒ/18 optics have a large depth of field, and no focussing mechanism is required; a mechanical shutter is avoided by using the frame transfer capability of the 512×512 CCD. The resolving power of the camera, 0.98 mrad/pixel, is approximately the same as the Viking Lander cameras; however, the signal‐to‐noise ratio for IMP greatly exceeds Viking, approaching 350. This feature along with the stable calibration of the filters between 440 and 1000 nm distinguishes IMP from Viking. Specially designed targets are positioned on the Lander; they provide information on the magnetic properties of wind‐blown dust, measure the wind vectors, and provide radiometric standard reflectors for calibration. Also, eight low‐transmission filters are included for imaging the Sun directly at multiple wavelengths, giving IMP the ability to measure dust opacity and potentially the water vapor content. Several experiments beyond the requisite color panorama are described in detail: contour mapping of the local terrain, multispectral imaging of the surrounding rock and soil to study local mineralogy, viewing of three wind socks, measuring atmospheric opacity and water vapor content, and estimating the magnetic properties of wind‐blown dust. This paper is intended to serve as a guide to understanding the scientific integrity of the IMP data that will be returned from Mars starting on July 4, 1997.
","language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/96JE03568","usgsCitation":"Smith, P.H., Tomasko, M., Britt, D., Crowe, D., Reid, R., Keller, H., Thomas, N., Gliem, F., Rueffer, P., Sullivan, R., Greeley, R., Knudsen, J.M., Madsen, M., Gunnlaugsson, H., Hviid, S., Goetz, W., Soderblom, L.A., Gaddis, L., and Kirk, R.L., 1997, The imager for Mars Pathfinder experiment: Journal of Geophysical Research E: Planets, v. 102, no. E2, p. 4003-4025, https://doi.org/10.1029/96JE03568.","productDescription":"23 p.","startPage":"4003","endPage":"4025","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":479929,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/96je03568","text":"Publisher Index Page"},{"id":360190,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"102","issue":"E2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c122c59e4b034bf6a856a07","contributors":{"authors":[{"text":"Smith, P. H.","contributorId":94058,"corporation":false,"usgs":false,"family":"Smith","given":"P.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":753881,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tomasko, M.G.","contributorId":94861,"corporation":false,"usgs":true,"family":"Tomasko","given":"M.G.","email":"","affiliations":[],"preferred":false,"id":753882,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Britt, D.","contributorId":30001,"corporation":false,"usgs":true,"family":"Britt","given":"D.","email":"","affiliations":[],"preferred":false,"id":753883,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Crowe, D.G.","contributorId":211386,"corporation":false,"usgs":false,"family":"Crowe","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":753884,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Reid, R.","contributorId":7183,"corporation":false,"usgs":true,"family":"Reid","given":"R.","email":"","affiliations":[],"preferred":false,"id":753885,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Keller, H.U.","contributorId":84526,"corporation":false,"usgs":true,"family":"Keller","given":"H.U.","email":"","affiliations":[],"preferred":false,"id":753886,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Thomas, N.","contributorId":72490,"corporation":false,"usgs":true,"family":"Thomas","given":"N.","email":"","affiliations":[],"preferred":false,"id":753887,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gliem, F.","contributorId":86133,"corporation":false,"usgs":true,"family":"Gliem","given":"F.","email":"","affiliations":[],"preferred":false,"id":753888,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Rueffer, P.","contributorId":94059,"corporation":false,"usgs":true,"family":"Rueffer","given":"P.","email":"","affiliations":[],"preferred":false,"id":753889,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Sullivan, R.","contributorId":167408,"corporation":false,"usgs":false,"family":"Sullivan","given":"R.","email":"","affiliations":[],"preferred":false,"id":753890,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Greeley, R.","contributorId":6538,"corporation":false,"usgs":true,"family":"Greeley","given":"R.","email":"","affiliations":[],"preferred":false,"id":753891,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Knudsen, J. M.","contributorId":97002,"corporation":false,"usgs":false,"family":"Knudsen","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":753892,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Madsen, M.B.","contributorId":196208,"corporation":false,"usgs":false,"family":"Madsen","given":"M.B.","email":"","affiliations":[{"id":27198,"text":"Niels Bohr Institute, University of Copenhagen","active":true,"usgs":false}],"preferred":false,"id":753893,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Gunnlaugsson, H.P.","contributorId":30518,"corporation":false,"usgs":true,"family":"Gunnlaugsson","given":"H.P.","email":"","affiliations":[],"preferred":false,"id":753894,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Hviid, S.F.","contributorId":49670,"corporation":false,"usgs":true,"family":"Hviid","given":"S.F.","email":"","affiliations":[],"preferred":false,"id":753895,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Goetz, W.","contributorId":181929,"corporation":false,"usgs":false,"family":"Goetz","given":"W.","email":"","affiliations":[],"preferred":false,"id":753896,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Soderblom, Laurence A. 0000-0002-0917-853X lsoderblom@usgs.gov","orcid":"https://orcid.org/0000-0002-0917-853X","contributorId":2721,"corporation":false,"usgs":true,"family":"Soderblom","given":"Laurence","email":"lsoderblom@usgs.gov","middleInitial":"A.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":753897,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Gaddis, L.","contributorId":19736,"corporation":false,"usgs":true,"family":"Gaddis","given":"L.","email":"","affiliations":[],"preferred":false,"id":753898,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":753899,"contributorType":{"id":1,"text":"Authors"},"rank":19}]}}
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