{"pageNumber":"2836","pageRowStart":"70875","pageSize":"25","recordCount":184553,"records":[{"id":1000974,"text":"1000974 - 2003 - Passage of four teleost species prior to sea lamprey (Petromyzon marinus) migration in eight tributaries of Lake Superior, 1954-1979","interactions":[],"lastModifiedDate":"2016-05-20T10:23:05","indexId":"1000974","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Passage of four teleost species prior to sea lamprey (Petromyzon marinus) migration in eight tributaries of Lake Superior, 1954-1979","docAbstract":"

Seasonally operated barriers in rivers are used by the Great Lakes Fishery Commission to block adult sea lamprey (Petromyzon marinus) migrations, yet pass other fish during some part of the year. Knowledge of the overlap of spawning migrations of sea lampreys and other fish species are vital for the efficient operation of the Commission's barrier program. The migration of sea lamprey spawners was compared with the migration of four other fish species using trap captures at electric barriers on eight Lake Superior tributaries during 1954 to 1979. The passage of rainbow trout (Oncorhynchus mykiss), rainbow smelt (Osmerus mordax), longnose suckers (Catostomus catostomus), and white suckers (Catostomus commersoni) prior to the capture of sea lampreys was quantified as the proportion of the annual catch of each species. Average passage over all streams and years was smallest (5%) for longnose sucker and largest (21%) for rainbow smelt. Passage prior to first sea lamprey catch was significantly different among rivers for all four species and significantly different among years for rainbow trout. Much of the variability in annual passage was unexplained by river or year effects. It is suggested that stream-specific information on run times of sea lampreys and other fishes be used to define timing of seasonal barrier operations. If barrier operations are timed to block the entire sea lamprey spawning run, then fish passage devices are needed to pass rainbow trout, rainbow smelt, longnose suckers, and white suckers.

","language":"English","publisher":"Elsevier","doi":"10.1016/S0380-1330(03)70503-6","usgsCitation":"Klinger, G.L., Adams, J.V., and Heinrich, J.W., 2003, Passage of four teleost species prior to sea lamprey (Petromyzon marinus) migration in eight tributaries of Lake Superior, 1954-1979: Journal of Great Lakes Research, v. 29, no. Supplement 1, p. 403-409, https://doi.org/10.1016/S0380-1330(03)70503-6.","productDescription":"7 p.","startPage":"403","endPage":"409","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":128747,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"Supplement 1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae2e4b07f02db688af6","contributors":{"authors":[{"text":"Klinger, Gregory L.","contributorId":43705,"corporation":false,"usgs":true,"family":"Klinger","given":"Gregory","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":310039,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, Jean V. 0000-0002-9101-068X jvadams@usgs.gov","orcid":"https://orcid.org/0000-0002-9101-068X","contributorId":3140,"corporation":false,"usgs":true,"family":"Adams","given":"Jean","email":"jvadams@usgs.gov","middleInitial":"V.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":310038,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Heinrich, John W.","contributorId":63754,"corporation":false,"usgs":true,"family":"Heinrich","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":310040,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1000890,"text":"1000890 - 2003 - Parasites of burbot, Lota lota, from Lake Huron, Michigan, U.S.A., with a checklist of the North American parasites of burbot","interactions":[],"lastModifiedDate":"2016-05-20T08:46:08","indexId":"1000890","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2223,"text":"Journal of Comparative Parasitology","active":true,"publicationSubtype":{"id":10}},"title":"Parasites of burbot, Lota lota, from Lake Huron, Michigan, U.S.A., with a checklist of the North American parasites of burbot","docAbstract":"

Forty-five adult burbot, Lota lota, collected in July 1998 from Six Fathom Bank (Six Fathom Bank Lake Trout Refuge) and Yankee Reef in Lake Huron, Michigan, U.S.A., were examined for parasites. A total of 10 parasite species infected burbot. Diplostomum sp., Eubothrium rugosum,Haplonema hamulatum, Echinorhynchus salmonis, and Trichodina sp. infected 60% or more of the burbot examined from each location. Diplostomum sp. had the highest mean intensity, and E. salmonis had the highest mean abundance in burbot from Six Fathom Bank. Echinorhynchus salmonishad the highest mean intensity and mean abundance in burbot from Yankee Reef. Diplostomum sp.,H. hamulatun, and E. salmonis in burbot from Yankee Reef had significantly higher mean intensities and mean abundances than those in fish from Six Fathom Bank. The lengths and weights of burbot from Yankee Reef were significantly greater than those of fish from Six Fathom Bank. A checklist of parasites of burbot from published records in North America is presented.

","language":"English","publisher":"Elsevier","doi":"10.1654/4062","usgsCitation":"Muzzall, P.M., Gillilland, M.G., Bowen, C.A., Coady, N.R., and Peebles, C.R., 2003, Parasites of burbot, Lota lota, from Lake Huron, Michigan, U.S.A., with a checklist of the North American parasites of burbot: Journal of Comparative Parasitology, v. 70, no. 2, p. 182-195, https://doi.org/10.1654/4062.","productDescription":"14 p.","startPage":"182","endPage":"195","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133606,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"70","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db689278","contributors":{"authors":[{"text":"Muzzall, Patrick M.","contributorId":61371,"corporation":false,"usgs":true,"family":"Muzzall","given":"Patrick","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":309761,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gillilland, Merritt G. III","contributorId":63774,"corporation":false,"usgs":true,"family":"Gillilland","given":"Merritt","suffix":"III","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":309762,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bowen, Charles A. II","contributorId":30940,"corporation":false,"usgs":true,"family":"Bowen","given":"Charles","suffix":"II","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":309760,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Coady, Nathaniel R.","contributorId":73971,"corporation":false,"usgs":true,"family":"Coady","given":"Nathaniel","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":309763,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Peebles, C. Robert","contributorId":100337,"corporation":false,"usgs":true,"family":"Peebles","given":"C.","email":"","middleInitial":"Robert","affiliations":[],"preferred":false,"id":309764,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":1000866,"text":"1000866 - 2003 - Chemosterilization of male sea lampreys (Petromyzon marinus) does not affect sex pheromone release","interactions":[],"lastModifiedDate":"2016-05-19T13:38:43","indexId":"1000866","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Chemosterilization of male sea lampreys (Petromyzon marinus) does not affect sex pheromone release","docAbstract":"

Release of males sterilized by injection with bisazir is an important experimental technique in management of sea lamprey (Petromyzon marinus), an invasive, nuisance species in the Laurentian Great Lakes. Sea lampreys are semelparous and sterilization can theoretically eliminate a male's reproductive capacity and, if the ability to obtain mates is not affected, waste the sex products of females spawning with him. It has been demonstrated that spermiating males release a sex pheromone that attracts ovulating females. We demonstrated that sterilized, spermiating males also released the pheromone and attracted ovulating females. In a two-choice maze, ovulating females increased searching behavior and spent more time in the side of the maze containing chemical stimuli from sterilized, spermiating males. This attraction response was also observed in spawning stream experiments. Also, electro-olfactograms showed that female olfactory organs were equally sensitive to chemical stimuli from sterilized and nonsterilized, spermiating males. Finally, fast atom bombardment mass spectrometry showed that extracts from water conditioned with sterilized and nonsterilized, spermiating males contained the same pheromonal molecule at similar levels. We concluded that injection of bisazir did not affect the efficacy of sex pheromone in sterilized males.

","language":"English","publisher":"NRC Research Press","doi":"10.1139/f02-169","usgsCitation":"Siefkes, M.J., Bergstedt, R.A., Twohey, M.B., and Li, W., 2003, Chemosterilization of male sea lampreys (Petromyzon marinus) does not affect sex pheromone release: Canadian Journal of Fisheries and Aquatic Sciences, v. 60, no. 1, p. 23-31, https://doi.org/10.1139/f02-169.","productDescription":"9 p.","startPage":"23","endPage":"31","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133531,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67b70d","contributors":{"authors":[{"text":"Siefkes, Michael J.","contributorId":36905,"corporation":false,"usgs":true,"family":"Siefkes","given":"Michael","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":309660,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bergstedt, Roger A. rbergstedt@usgs.gov","contributorId":4174,"corporation":false,"usgs":true,"family":"Bergstedt","given":"Roger","email":"rbergstedt@usgs.gov","middleInitial":"A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":309659,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Twohey, Michael B.","contributorId":62541,"corporation":false,"usgs":false,"family":"Twohey","given":"Michael","email":"","middleInitial":"B.","affiliations":[{"id":6661,"text":"US Fish and Wildlife Service","active":true,"usgs":false}],"preferred":false,"id":309661,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Li, Weiming","contributorId":65440,"corporation":false,"usgs":true,"family":"Li","given":"Weiming","affiliations":[],"preferred":false,"id":309662,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1000993,"text":"1000993 - 2003 - A new species of Moraria (Crustacea: Copepoda: Harpacticoida) from the Laurentian Great Lakes","interactions":[],"lastModifiedDate":"2022-03-14T16:59:38.613391","indexId":"1000993","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3814,"text":"Zootaxa","onlineIssn":"1175-5334","printIssn":"1175-5326","active":true,"publicationSubtype":{"id":10}},"displayTitle":"A new species of Moraria (Crustacea: Copepoda: Harpacticoida) from the Laurentian Great Lakes","title":"A new species of Moraria (Crustacea: Copepoda: Harpacticoida) from the Laurentian Great Lakes","docAbstract":"Moraria hudsoni n. sp. is described from Trails End Bay in Lake Michigan and Prentiss Bay in Lake Huron, Michigan, USA. The new species differs from its congeners in chaetotaxy, body ornamentation, and other characters. We review published records of members of Moraria from North and Central America; no species is known from South America. Species of this genus have been found in the mountains of southern Mexico, Guatemala, and Honduras, but none of these has been validly described. In North America, eight species have been recorded from Alaska, Canada, and the conterminous USA as far south as North Carolina. We report new geographical records of M. affinis from Virginia, and of both M. cristata and M. virginiana from Maryland and Virginia. We provide a tabular key to aid in identification of the named species of Moraria in North America.","language":"English","publisher":"Magnolia Press","doi":"10.11646/zootaxa.205.1","usgsCitation":"Reid, J.W., and Lesko, L.T., 2003, A new species of Moraria (Crustacea: Copepoda: Harpacticoida) from the Laurentian Great Lakes: Zootaxa, v. 205, p. 1-19, https://doi.org/10.11646/zootaxa.205.1.","productDescription":"19 p.","startPage":"1","endPage":"19","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133072,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maryland, Michigan, Virginia","otherGeospatial":"Lake Huron, Lake Michigan, Prentiss Bay, Trails End Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -84.93221282958984,\n 45.739016119348136\n ],\n [\n -84.76982116699219,\n 45.739016119348136\n ],\n [\n -84.76982116699219,\n 45.79529713006591\n ],\n [\n -84.93221282958984,\n 45.79529713006591\n ],\n [\n -84.93221282958984,\n 45.739016119348136\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -84.23775672912598,\n 45.96541032602411\n ],\n [\n -84.19578552246094,\n 45.96541032602411\n ],\n [\n -84.19578552246094,\n 45.99093903619414\n ],\n [\n -84.23775672912598,\n 45.99093903619414\n ],\n [\n -84.23775672912598,\n 45.96541032602411\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -79.508056640625,\n 39.73253798438173\n ],\n [\n -79.508056640625,\n 39.18117526158749\n ],\n [\n -79.068603515625,\n 39.41922073655956\n ],\n [\n -78.958740234375,\n 39.38526381099774\n ],\n [\n -78.782958984375,\n 39.54641191968671\n ],\n [\n -78.475341796875,\n 39.51251701659638\n ],\n [\n -78.1787109375,\n 39.639537564366684\n ],\n [\n -77.77221679687499,\n 39.410733055084954\n ],\n [\n -77.860107421875,\n 39.18117526158749\n ],\n [\n -78.37646484375,\n 39.49556336059472\n ],\n [\n -78.55224609374999,\n 39.172658670429946\n ],\n [\n -78.8818359375,\n 38.84826438869913\n ],\n [\n -79.046630859375,\n 38.92522904714054\n ],\n [\n -79.3212890625,\n 38.47079371120379\n ],\n [\n -79.453125,\n 38.522384090200845\n ],\n [\n -79.530029296875,\n 38.62545397209084\n ],\n [\n -79.70581054687499,\n 38.64261790634527\n ],\n [\n -80.321044921875,\n 37.77071473849609\n ],\n [\n -80.474853515625,\n 37.55328764595765\n ],\n [\n -80.88134765625,\n 37.483576550426996\n ],\n [\n -81.23291015625,\n 37.29153547292737\n ],\n [\n -81.353759765625,\n 37.38761749978395\n ],\n [\n -81.6064453125,\n 37.25656608611523\n ],\n [\n -81.903076171875,\n 37.46613860234406\n ],\n [\n -81.903076171875,\n 37.52715361723378\n ],\n [\n -81.990966796875,\n 37.59682400108367\n ],\n [\n -82.7490234375,\n 37.17782559332976\n ],\n [\n -83.22143554687499,\n 36.80048816579081\n ],\n [\n -83.51806640624999,\n 36.74768773190056\n ],\n [\n -83.69384765625,\n 36.589068371399115\n ],\n [\n -75.8056640625,\n 36.55377524336089\n ],\n [\n -75.87158203125,\n 37.081475648860525\n ],\n [\n -75.047607421875,\n 38.47079371120379\n ],\n [\n -75.662841796875,\n 38.47079371120379\n ],\n [\n -75.76171875,\n 39.740986355883564\n ],\n [\n -79.508056640625,\n 39.73253798438173\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"205","noUsgsAuthors":false,"publicationDate":"2003-06-04","publicationStatus":"PW","scienceBaseUri":"4f4e4b20e4b07f02db6abaa8","contributors":{"authors":[{"text":"Reid, Janet W.","contributorId":12805,"corporation":false,"usgs":true,"family":"Reid","given":"Janet","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":310108,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lesko, Lynn T.","contributorId":48520,"corporation":false,"usgs":true,"family":"Lesko","given":"Lynn","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":310109,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1000972,"text":"1000972 - 2003 - The Oligochaeta (Annelida, Clitellata) of the St. Lawrence Great Lakes region: An update","interactions":[],"lastModifiedDate":"2016-05-20T08:11:26","indexId":"1000972","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"The Oligochaeta (Annelida, Clitellata) of the St. Lawrence Great Lakes region: An update","docAbstract":"

An updated oligochaete species list for the Great Lakes region is provided. The list was developed through the reexamination of the taxa reported in a previous report in 1980, addition of new taxa or records collected from the region since 1980, and an update of taxonomy commensurate with systematic and nomenclatural changes over the intervening years since the last review. The authors found 74 papers mentioning Great Lakes oligochaete species. The majority of these papers were published in the 1980s. The literature review and additional collections resulted in 15 species being added to the previous list. Nine taxa were removed from the previous list due to misidentification, synonymies, level of identification, or inability to confirm the identity. Based on this review, 101 species of Oligochaeta are now known from the St. Lawrence Great Lakes watershed. Of these, 95 species are known from the St. Lawrence Great Lakes proper, with an additional 6 species recorded from the inland waters of the watershed. The greatest diversity of oligochaete species was found in the inland waters of the region (81) followed by Lake Huron (72), Lake Ontario (65), Lake Erie (64), Lake Superior (63), Lake Michigan (62), St. Marys River (60), Niagara River (49), Saginaw Bay (44), St. Clair River (37), Lake St. Clair (36), St. Lawrence River (27), and the Detroit River (21). Three species are suspected of being introduced, Branchiura sowerbyi, Gianius aquaedulcisand Ripistes parasita, and two are believed to be endemic, Thalassodrilus hallae andTeneridrilus flexus.

","language":"English","publisher":"Elsevier","doi":"10.1016/S0380-1330(03)70418-3","usgsCitation":"Spencer, D.R., and Hudson, P.L., 2003, The Oligochaeta (Annelida, Clitellata) of the St. Lawrence Great Lakes region: An update: Journal of Great Lakes Research, v. 29, no. 1, p. 89-104, https://doi.org/10.1016/S0380-1330(03)70418-3.","productDescription":"16 p.","startPage":"89","endPage":"104","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133825,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adfe4b07f02db6877d4","contributors":{"authors":[{"text":"Spencer, Douglas R.","contributorId":21512,"corporation":false,"usgs":true,"family":"Spencer","given":"Douglas","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":310030,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hudson, Patrick L. 0000-0002-7646-443X phudson@usgs.gov","orcid":"https://orcid.org/0000-0002-7646-443X","contributorId":5616,"corporation":false,"usgs":true,"family":"Hudson","given":"Patrick","email":"phudson@usgs.gov","middleInitial":"L.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":310029,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1000912,"text":"1000912 - 2003 - Ecological monitoring for assessing the state of the nearshore and open waters of the Great Lakes","interactions":[],"lastModifiedDate":"2016-05-19T11:44:10","indexId":"1000912","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"Ecological monitoring for assessing the state of the nearshore and open waters of the Great Lakes","docAbstract":"

The Great Lakes Water Quality Agreement stipulates that the Governments of Canada and the United States are responsible for restoring and maintaining the chemical, physical and biological integrity of the waters of the Great Lakes Basin Ecosystem. Due to varying mandates and areas of expertise, monitoring to assess progress towards this objective is conducted by a multitude of Canadian and U.S. federal and provincial/state agencies, in cooperation with academia and regional authorities. This paper highlights selected long-term monitoring programs and discusses a number of documented ecological changes that indicate the present state of the open and nearshore waters of the Great Lakes.

","language":"English","publisher":"Springer","doi":"10.1023/A:1025500619900","usgsCitation":"Neilson, M.A., Painter, D.S., Warren, G., Hites, R., Basu, I., Weseloh, D.C., Whittle, D.M., Christie, G., Barbiero, R., Tuchman, M., Johannsson, O.E., Nalepa, T., Edsall, T.A., Fleischer, G., Bronte, C., Smith, S.B., and Baumann, P.C., 2003, Ecological monitoring for assessing the state of the nearshore and open waters of the Great Lakes: Environmental Monitoring and Assessment, v. 88, no. 1-3, p. 103-117, https://doi.org/10.1023/A:1025500619900.","productDescription":"15 p.","startPage":"103","endPage":"117","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133329,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ee4b07f02db627bdf","contributors":{"authors":[{"text":"Neilson, Melanie A.","contributorId":11175,"corporation":false,"usgs":true,"family":"Neilson","given":"Melanie","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":309808,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Painter, D. Scott","contributorId":46059,"corporation":false,"usgs":true,"family":"Painter","given":"D.","email":"","middleInitial":"Scott","affiliations":[],"preferred":false,"id":309816,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Warren, Glenn","contributorId":16375,"corporation":false,"usgs":true,"family":"Warren","given":"Glenn","affiliations":[],"preferred":false,"id":309811,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hites, Ronald A.","contributorId":97056,"corporation":false,"usgs":true,"family":"Hites","given":"Ronald A.","affiliations":[],"preferred":false,"id":309823,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Basu, Ilora","contributorId":37295,"corporation":false,"usgs":true,"family":"Basu","given":"Ilora","email":"","affiliations":[],"preferred":false,"id":309815,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Weseloh, D.V. Chip","contributorId":60984,"corporation":false,"usgs":true,"family":"Weseloh","given":"D.V.","email":"","middleInitial":"Chip","affiliations":[],"preferred":false,"id":309819,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Whittle, D. Michael","contributorId":71121,"corporation":false,"usgs":true,"family":"Whittle","given":"D.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":309820,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Christie, Gavin","contributorId":14778,"corporation":false,"usgs":true,"family":"Christie","given":"Gavin","affiliations":[],"preferred":false,"id":309810,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Barbiero, Richard","contributorId":54953,"corporation":false,"usgs":true,"family":"Barbiero","given":"Richard","affiliations":[],"preferred":false,"id":309818,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Tuchman, Marc","contributorId":50118,"corporation":false,"usgs":true,"family":"Tuchman","given":"Marc","affiliations":[],"preferred":false,"id":309817,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Johannsson, Ora E.","contributorId":25527,"corporation":false,"usgs":true,"family":"Johannsson","given":"Ora","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":309812,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Nalepa, Thomas F.","contributorId":28212,"corporation":false,"usgs":true,"family":"Nalepa","given":"Thomas F.","affiliations":[],"preferred":false,"id":309813,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Edsall, Thomas A.","contributorId":84302,"corporation":false,"usgs":true,"family":"Edsall","given":"Thomas","email":"","middleInitial":"A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":309822,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Fleischer, Guy","contributorId":32488,"corporation":false,"usgs":true,"family":"Fleischer","given":"Guy","affiliations":[],"preferred":false,"id":309814,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Bronte, Charles","contributorId":83073,"corporation":false,"usgs":true,"family":"Bronte","given":"Charles","affiliations":[],"preferred":false,"id":309821,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Smith, Stephen B.","contributorId":14765,"corporation":false,"usgs":true,"family":"Smith","given":"Stephen","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":309809,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Baumann, Paul C.","contributorId":104455,"corporation":false,"usgs":true,"family":"Baumann","given":"Paul","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":309824,"contributorType":{"id":1,"text":"Authors"},"rank":17}]}} ,{"id":1001019,"text":"1001019 - 2003 - Sea lamprey (Petromyzon marinus) parasite-host interactions in the Great Lakes","interactions":[],"lastModifiedDate":"2016-05-19T16:31:33","indexId":"1001019","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Sea lamprey (Petromyzon marinus) parasite-host interactions in the Great Lakes","docAbstract":"

Prediction of how host mortality responds to efforts to control sea lampreys (Petromyzon marinus) is central to the integrated management strategy for sea lamprey (IMSL) in the Great Lakes. A parasite-host submodel is used as part of this strategy, and this includes a type-2 multi-species functional response, a developmental response, but no numerical response. General patterns of host species and size selection are consistent with the model assumptions, but some observations appear to diverge. For example, some patterns in sea lamprey marking on hosts suggest increases in selectivity for less preferred hosts and lower host survival when preferred hosts are scarce. Nevertheless, many of the IMSL assumptions may be adequate under conditions targeted by fish community objectives. Of great concern is the possibility that the survival of young parasites (parasitic-phase sea lampreys) varies substantially among lakes or over time. Joint analysis of abundance estimates for parasites being produced in streams and returning spawners could address this. Data on sea lamprey marks is a critical source of information on sea lamprey activity and potential effects. Theory connecting observed marks to sea lamprey feeding activity and host mortality is reviewed. Uncertainties regarding healing and attachment times, the probability of hosts surviving attacks, and problems in consistent classification of marks have led to widely divergent estimates of damages caused by sea lamprey. Laboratory and field studies are recommended to provide a firmer linkage between host blood loss, host mortality, and observed marks on surviving hosts, so as to improve estimates of damage.

","language":"English","publisher":"Elsevier","doi":"10.1016/S0380-1330(03)70493-6","usgsCitation":"Bence, J., Bergstedt, R.A., Christie, G.C., Cochran, P.A., Ebener, M.P., Koonce, J.F., Rutter, M.A., and Swink, W.D., 2003, Sea lamprey (Petromyzon marinus) parasite-host interactions in the Great Lakes: Journal of Great Lakes Research, v. 29, no. Supplement 1, p. 253-282, https://doi.org/10.1016/S0380-1330(03)70493-6.","productDescription":"30 p.","startPage":"253","endPage":"282","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133445,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"Supplement 1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fc5d8","contributors":{"authors":[{"text":"Bence, James R.","contributorId":95026,"corporation":false,"usgs":false,"family":"Bence","given":"James R.","affiliations":[{"id":6601,"text":"Michigan State University","active":true,"usgs":false}],"preferred":false,"id":310233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bergstedt, Roger A. rbergstedt@usgs.gov","contributorId":4174,"corporation":false,"usgs":true,"family":"Bergstedt","given":"Roger","email":"rbergstedt@usgs.gov","middleInitial":"A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":310227,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christie, Gavin C.","contributorId":13937,"corporation":false,"usgs":true,"family":"Christie","given":"Gavin","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":310228,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cochran, Phillip A.","contributorId":70734,"corporation":false,"usgs":true,"family":"Cochran","given":"Phillip","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":310232,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ebener, Mark P.","contributorId":25099,"corporation":false,"usgs":false,"family":"Ebener","given":"Mark","email":"","middleInitial":"P.","affiliations":[{"id":12957,"text":"Chippewa Ottawa Resource Authority","active":true,"usgs":false}],"preferred":false,"id":310230,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Koonce, Joseph F.","contributorId":106069,"corporation":false,"usgs":true,"family":"Koonce","given":"Joseph","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":310234,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rutter, Michael A.","contributorId":13938,"corporation":false,"usgs":true,"family":"Rutter","given":"Michael","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":310229,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Swink, William D.","contributorId":60586,"corporation":false,"usgs":true,"family":"Swink","given":"William","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":310231,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":1001015,"text":"1001015 - 2003 - Foreshore sand as a source of Escherichia coli in nearshore water of a Lake Michigan beach","interactions":[],"lastModifiedDate":"2016-05-19T12:39:44","indexId":"1001015","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","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":"Foreshore sand as a source of Escherichia coli in nearshore water of a Lake Michigan beach","docAbstract":"

Swimming advisories due to excessive Escherichia coli concentrations are common at 63rd Street Beach, Chicago, Ill. An intensive study was undertaken to characterize the source and fate of E. coli in beach water and sand at the beach. From April through September 2000, water and sand samples were collected daily or twice daily at two depths on three consecutive days per week (water samples, n= 1,747; sand samples, n = 858); hydrometeorological conditions and bird and bather distributions were also recorded. E. coli concentrations in sand and water were significantly correlated, with the highest concentration being found in foreshore sand, followed by those in submerged sediment and water of increasing depth. Gull contributions to E. coli densities in sand and water were most apparent on the day following gull activity in a given area. E. coli recolonized newly placed foreshore sand within 2 weeks. Analysis of variance, correlation, cluster analyses, concentration gradients, temporal-spatial distribution, demographic patterns, and DNA fingerprinting suggest that E. coli may be able to sustain population density in temperate beach sand during summer months without external inputs. This research presents evidence that foreshore beach sand (i) plays a major role in bacterial lake water quality, (ii) is an important non-point source of E. coli to lake water rather than a net sink, (iii) may be environmentally, and perhaps hygienically, problematic, and (iv) is possibly capable of supporting an autochthonous, high density of indicator bacteria for sustained periods, independent of lake, human, or animal input.

","language":"English","publisher":"American Society for Microbiology","doi":"10.1128/AEM.69.9.5555-5562.2003","usgsCitation":"Whitman, R.L., and Nevers, M.B., 2003, Foreshore sand as a source of Escherichia coli in nearshore water of a Lake Michigan beach: Applied and Environmental Microbiology, v. 69, no. 9, p. 5555-5562, https://doi.org/10.1128/AEM.69.9.5555-5562.2003.","productDescription":"8 p.","startPage":"5555","endPage":"5562","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":478424,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/194947","text":"External Repository"},{"id":133557,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae4e8","contributors":{"authors":[{"text":"Whitman, Richard L. rwhitman@usgs.gov","contributorId":542,"corporation":false,"usgs":true,"family":"Whitman","given":"Richard","email":"rwhitman@usgs.gov","middleInitial":"L.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":310220,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nevers, Meredith B.","contributorId":91803,"corporation":false,"usgs":true,"family":"Nevers","given":"Meredith","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":310221,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1001017,"text":"1001017 - 2003 - Differences in sedge fen vegetation upstream and downstream from a managed impoundment","interactions":[],"lastModifiedDate":"2021-07-15T22:28:56.349715","indexId":"1001017","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":737,"text":"American Midland Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Differences in sedge fen vegetation upstream and downstream from a managed impoundment","docAbstract":"

The U.S. Fish and Wildlife Service proposed the restoration of wetlands impacted by a series of drainage ditches and pools located in an extensive undeveloped peatland in the Seney National Wildlife Refuge, Michigan. This study examined the nature and extent of degradation to the Marsh Creek wetlands caused by alteration of natural hydrology by a water-storage pool (C-3 Pool) that intersects the Marsh Creek channel. We tested the hypothesis that a reduction in moderate-intensity disturbance associated with natural water-level fluctuations below the C-3 dike contributed to lower species richness, reduced floristic quality and a larger tree and shrub component than vegetation upstream from the pool. Wetland plant communities were sampled quantitatively and analyzed for species richness, floristic quality and physiognomy. Aerial photographs, GIS databases and GPS data contributed to the characterization and analysis of the Marsh Creek wetlands. Results showed that there was lower species richness in vegetated areas downstream from the pool, but not the anticipated growth in shrubs. Wetland vegetation upstream and downstream from the pool had similar floristic quality, except for a greater number of weedy taxa above the pool. Seepage through the pool dike and localized ground-water discharge created conditions very similar to those observed around beaver dams in Marsh Creek. In essence, the dike containing the C-3 Pool affected hydrology and wetland plant communities in a manner similar to an enormous beaver dam, except that it did not allow seasonal flooding episodes to occur. Management actions to release water from the pool into the original Marsh Creek channel at certain times and in certain amounts that mimic the natural flow regime would be expected to promote greater plant species richness and minimize the negative impacts of the dike.

","language":"English","publisher":"BioOne","doi":"10.1674/0003-0031(2003)150[0199:DISFVU]2.0.CO;2","usgsCitation":"Kowalski, K., and Wilcox, D.A., 2003, Differences in sedge fen vegetation upstream and downstream from a managed impoundment: American Midland Naturalist, v. 150, no. 2, p. 199-220, https://doi.org/10.1674/0003-0031(2003)150[0199:DISFVU]2.0.CO;2.","productDescription":"22 p.","startPage":"199","endPage":"220","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":478476,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/20.500.12648/2330","text":"External Repository"},{"id":387203,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"150","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d75a","contributors":{"authors":[{"text":"Kowalski, Kurt P. 0000-0002-8424-4701 kkowalski@usgs.gov","orcid":"https://orcid.org/0000-0002-8424-4701","contributorId":3768,"corporation":false,"usgs":true,"family":"Kowalski","given":"Kurt P.","email":"kkowalski@usgs.gov","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":310222,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilcox, Douglas A.","contributorId":36880,"corporation":false,"usgs":true,"family":"Wilcox","given":"Douglas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":310223,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1000982,"text":"1000982 - 2003 - Genetic variation over space and time: Analyses of extinct and remnant lake trout populations in the Upper Great Lakes","interactions":[],"lastModifiedDate":"2016-05-19T13:44:03","indexId":"1000982","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3174,"text":"Proceedings of the Royal Society B: Biological Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Genetic variation over space and time: Analyses of extinct and remnant lake trout populations in the Upper Great Lakes","docAbstract":"

Lake trout (Salvelinus namaycush) in the upper Laurentian Great Lakes of North America experienced striking reductions in abundance and distribution during the mid–twentieth century. Complete collapse of populations was documented for Lake Michigan, and a few remnant populations remained only in lakes Huron and Superior. Using DNA obtained from historical scale collections, we analysed patterns of genetic diversity at five microsatellite loci from archived historical samples representing 15 populations (range 1940–1959) and from three contemporary remnant populations across lakes Huron and Superior (total n = 893). Demographic declines in abundance and the extirpation of native lake trout populations during the past 40 years have resulted in the loss of genetic diversity between lakes owing to extirpation of Lake Michigan populations and a temporal trend for reduction in allelic richness in the populations of lakes Superior and Huron. Naturally reproducing populations in Lake Superior, which had been considered to be remnants of historical populations, and which were believed to be responsible for the resurgence of lake trout numbers and distribution, have probably been affected by hatchery supplementation.

","language":"English","publisher":"Royal Society Publishing","doi":"10.1098/rspb.2002.2250","usgsCitation":"Guinand, B., Scribner, K., Page, K., and Burnham-Curtis, M.K., 2003, Genetic variation over space and time: Analyses of extinct and remnant lake trout populations in the Upper Great Lakes: Proceedings of the Royal Society B: Biological Sciences, v. 270, no. 1513, p. 425-433, https://doi.org/10.1098/rspb.2002.2250.","productDescription":"9 p.","startPage":"425","endPage":"433","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":478543,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/1691259","text":"External Repository"},{"id":132690,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"270","issue":"1513","noUsgsAuthors":false,"publicationDate":"2003-02-22","publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aea85","contributors":{"authors":[{"text":"Guinand, B.","contributorId":6020,"corporation":false,"usgs":true,"family":"Guinand","given":"B.","email":"","affiliations":[],"preferred":false,"id":310063,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scribner, K.T.","contributorId":97033,"corporation":false,"usgs":true,"family":"Scribner","given":"K.T.","email":"","affiliations":[],"preferred":false,"id":310066,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Page, K.S.","contributorId":47332,"corporation":false,"usgs":true,"family":"Page","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":310065,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burnham-Curtis, M. K.","contributorId":39328,"corporation":false,"usgs":true,"family":"Burnham-Curtis","given":"M.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":310064,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1000981,"text":"1000981 - 2003 - An enhanced cluster analysis program with bootstrap significance testing for ecological community analysis","interactions":[],"lastModifiedDate":"2013-02-04T16:20:09","indexId":"1000981","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1551,"text":"Environmental Modelling and Software","active":true,"publicationSubtype":{"id":10}},"title":"An enhanced cluster analysis program with bootstrap significance testing for ecological community analysis","docAbstract":"The biosphere is filled with complex living patterns and important questions about biodiversity and community and ecosystem ecology are concerned with structure and function of multispecies systems that are responsible for those patterns. Cluster analysis identifies discrete groups within multivariate data and is an effective method of coping with these complexities, but often suffers from subjective identification of groups. The bootstrap testing method greatly improves objective significance determination for cluster analysis. The BOOTCLUS program makes cluster analysis that reliably identifies real patterns within a data set more accessible and easier to use than previously available programs. A variety of analysis options and rapid re-analysis provide a means to quickly evaluate several aspects of a data set. Interpretation is influenced by sampling design and a priori designation of samples into replicate groups, and ultimately relies on the researcher's knowledge of the organisms and their environment. However, the BOOTCLUS program provides reliable, objectively determined groupings of multivariate data.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Modelling and Software","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/S1364-8152(02)00094-4","usgsCitation":"McKenna, J., 2003, An enhanced cluster analysis program with bootstrap significance testing for ecological community analysis: Environmental Modelling and Software, v. 18, no. 3, p. 205-220, https://doi.org/10.1016/S1364-8152(02)00094-4.","productDescription":"16 p.","startPage":"205","endPage":"220","numberOfPages":"16","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":265839,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S1364-8152(02)00094-4"},{"id":133323,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad8e4b07f02db684a45","contributors":{"authors":[{"text":"McKenna, J.E. Jr.","contributorId":106065,"corporation":false,"usgs":true,"family":"McKenna","given":"J.E.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":310062,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70024871,"text":"70024871 - 2003 - Multi-site evaluation of IKONOS data for classification of tropical coral reef environments","interactions":[],"lastModifiedDate":"2012-03-12T17:20:11","indexId":"70024871","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"Multi-site evaluation of IKONOS data for classification of tropical coral reef environments","docAbstract":"Ten IKONOS images of different coral reef sites distributed around the world were processed to assess the potential of 4-m resolution multispectral data for coral reef habitat mapping. Complexity of reef environments, established by field observation, ranged from 3 to 15 classes of benthic habitats containing various combinations of sediments, carbonate pavement, seagrass, algae, and corals in different geomorphologic zones (forereef, lagoon, patch reef, reef flats). Processing included corrections for sea surface roughness and bathymetry, unsupervised or supervised classification, and accuracy assessment based on ground-truth data. IKONOS classification results were compared with classified Landsat 7 imagery for simple to moderate complexity of reef habitats (5-11 classes). For both sensors, overall accuracies of the classifications show a general linear trend of decreasing accuracy with increasing habitat complexity. The IKONOS sensor performed better, with a 15-20% improvement in accuracy compared to Landsat. For IKONOS, overall accuracy was 77% for 4-5 classes, 71% for 7-8 classes, 65% in 9-11 classes, and 53% for more than 13 classes. The Landsat classification accuracy was systematically lower, with an average of 56% for 5-10 classes. Within this general trend, inter-site comparisons and specificities demonstrate the benefits of different approaches. Pre-segmentation of the different geomorphologic zones and depth correction provided different advantages in different environments. Our results help guide scientists and managers in applying IKONOS-class data for coral reef mapping applications. ?? 2003 Elsevier Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Remote Sensing of Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.rse.2003.04.005","issn":"00344257","usgsCitation":"Andrefouet, S., Kramer, P., Torres-Pulliza, D., Joyce, K., Hochberg, E., Garza-Perez, R., Mumby, P., Riegl, B., Yamano, H., White, W.H., Zubia, M., Brock, J.C., Phinn, S., Naseer, A., Hatcher, B., and Muller-Karger, F., 2003, Multi-site evaluation of IKONOS data for classification of tropical coral reef environments: Remote Sensing of Environment, v. 88, no. 1-2, p. 128-143, https://doi.org/10.1016/j.rse.2003.04.005.","startPage":"128","endPage":"143","numberOfPages":"16","costCenters":[],"links":[{"id":232789,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":207654,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.rse.2003.04.005"}],"volume":"88","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5fc7e4b0c8380cd71123","contributors":{"authors":[{"text":"Andrefouet, S.","contributorId":43134,"corporation":false,"usgs":true,"family":"Andrefouet","given":"S.","affiliations":[],"preferred":false,"id":402949,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kramer, Philip","contributorId":35911,"corporation":false,"usgs":false,"family":"Kramer","given":"Philip","affiliations":[{"id":5112,"text":"University of Miami","active":true,"usgs":false}],"preferred":false,"id":402947,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Torres-Pulliza, D.","contributorId":87721,"corporation":false,"usgs":true,"family":"Torres-Pulliza","given":"D.","email":"","affiliations":[],"preferred":false,"id":402953,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Joyce, K.E.","contributorId":19334,"corporation":false,"usgs":true,"family":"Joyce","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":402941,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hochberg, E.J.","contributorId":32706,"corporation":false,"usgs":true,"family":"Hochberg","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":402945,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Garza-Perez, R.","contributorId":98917,"corporation":false,"usgs":true,"family":"Garza-Perez","given":"R.","email":"","affiliations":[],"preferred":false,"id":402955,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Mumby, P.J.","contributorId":70963,"corporation":false,"usgs":true,"family":"Mumby","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":402950,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Riegl, Bernhard","contributorId":20942,"corporation":false,"usgs":true,"family":"Riegl","given":"Bernhard","affiliations":[],"preferred":false,"id":402942,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Yamano, H.","contributorId":24135,"corporation":false,"usgs":true,"family":"Yamano","given":"H.","email":"","affiliations":[],"preferred":false,"id":402943,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"White, W. H.","contributorId":24793,"corporation":false,"usgs":true,"family":"White","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":402944,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Zubia, M.","contributorId":77705,"corporation":false,"usgs":true,"family":"Zubia","given":"M.","email":"","affiliations":[],"preferred":false,"id":402951,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Brock, J. C.","contributorId":36095,"corporation":false,"usgs":true,"family":"Brock","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":402948,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Phinn, S.R.","contributorId":97677,"corporation":false,"usgs":true,"family":"Phinn","given":"S.R.","affiliations":[],"preferred":false,"id":402954,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Naseer, A.","contributorId":35509,"corporation":false,"usgs":true,"family":"Naseer","given":"A.","email":"","affiliations":[],"preferred":false,"id":402946,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Hatcher, B.G.","contributorId":104252,"corporation":false,"usgs":true,"family":"Hatcher","given":"B.G.","email":"","affiliations":[],"preferred":false,"id":402956,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Muller-Karger, F. E.","contributorId":84542,"corporation":false,"usgs":true,"family":"Muller-Karger","given":"F. E.","affiliations":[],"preferred":false,"id":402952,"contributorType":{"id":1,"text":"Authors"},"rank":16}]}} ,{"id":70024864,"text":"70024864 - 2003 - Suppressed vitrinite reflectance in the Ferron coalbed gas fairway, central Utah: Possible influence of overpressure","interactions":[],"lastModifiedDate":"2012-03-12T17:20:08","indexId":"70024864","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"Suppressed vitrinite reflectance in the Ferron coalbed gas fairway, central Utah: Possible influence of overpressure","docAbstract":"Chemical and thermoplastic properties of coals in the Ferron coalbed methane fairway indicate that coals in the north are of higher rank than coals in the south. Measured vitrinite reflectance does not accurately show this variation of coal rank. Although vitrinite reflectance in the southern and central part of the fairway is consistent with other measures of coal rank, suppressed vitrinite reflectance is observed in the north where methane contents are relatively high. This coincidence of suppressed reflectance and relatively high coalbed methane yields may be significant. We speculate that the suppressed reflectance values result from a burial history where overpressure developed during the early stages of coalification and persisted until recent uplift and cooling; such instances may be diagnostic of prospective coalbed methane targets elsewhere. ?? 2003 Published by Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0166-5162(03)00076-4","issn":"01665162","usgsCitation":"Quick, J., and Tabet, D., 2003, Suppressed vitrinite reflectance in the Ferron coalbed gas fairway, central Utah: Possible influence of overpressure: International Journal of Coal Geology, v. 56, no. 1-2, p. 49-67, https://doi.org/10.1016/S0166-5162(03)00076-4.","startPage":"49","endPage":"67","numberOfPages":"19","costCenters":[],"links":[{"id":207919,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0166-5162(03)00076-4"},{"id":233214,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"56","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9f83e4b08c986b31e62d","contributors":{"authors":[{"text":"Quick, J.C.","contributorId":80848,"corporation":false,"usgs":true,"family":"Quick","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":402909,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tabet, D.E.","contributorId":31536,"corporation":false,"usgs":true,"family":"Tabet","given":"D.E.","affiliations":[],"preferred":false,"id":402908,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1000902,"text":"1000902 - 2003 - Temporal variation of energy reserves in mayfly nymphs (Hexagenia spp.) from Lake St. Clair and western Erie","interactions":[],"lastModifiedDate":"2016-05-19T12:41:14","indexId":"1000902","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Temporal variation of energy reserves in mayfly nymphs (Hexagenia spp.) from Lake St. Clair and western Erie","docAbstract":"

1. We analysed changes in energy reserves (lipid and glycogen) and length–weight relationships of burrowing mayflies (Hexagenia spp.) in 1997–99 to compare an established population in Lake St Clair with a recovering population in western Lake Erie of the Laurentian Great Lakes. In addition, we measured changes in water temperature and potential food in both water columns and sediments.

\n

2. Although overall mean values of lipid and glycogen levels of Hexagenia nymphs from Lake St Clair and western Lake Erie were not significantly different, there were differences in seasonal patterns between the two lakes. In Lake St Clair, levels were highest in early spring, declined throughout the year, and reached their lowest levels in fall during all 3 years of study. In contrast, levels in western Lake Erie were lower in spring, increased to a maximum in summer, then declined in fall. Seasonal patterns in length–weight relationships were similar to those for lipid and glycogen.

\n

3. Total lipid as a percentage of dry weight did not increase with developmental stage of nymphs until just prior to metamorphosis and emergence from water. However, the major reserve lipid, triacylglycerols, increased systematically with development stage. In the final stage of development, triacylglycerols declined, probably as a result of energy consumption and its conversion to other biochemical components for metamorphosis and reproduction.

\n

4. Indicators of potential food (algal fluorescence in the water column and chlorophyll a and chlorophyll a/phaeophytin ratio in sediments) suggest that Hexagenia in Lake St Clair have a food source that is benthic based, especially in early spring, whereas in western Lake Erie nymphs have a food source that is water column based and settles to the lake bottom during late spring and summer.

","language":"English","publisher":"Wiley","doi":"10.1046/j.1365-2427.2003.01119.x","usgsCitation":"Cavaletto, J., Nalepa, T., Fanslow, D., and Schloesser, D.W., 2003, Temporal variation of energy reserves in mayfly nymphs (Hexagenia spp.) from Lake St. Clair and western Erie: Freshwater Biology, v. 48, no. 10, p. 1726-1738, https://doi.org/10.1046/j.1365-2427.2003.01119.x.","productDescription":"13 p.","startPage":"1726","endPage":"1738","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133627,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"10","noUsgsAuthors":false,"publicationDate":"2003-09-16","publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db6843da","contributors":{"authors":[{"text":"Cavaletto, J.F.","contributorId":63358,"corporation":false,"usgs":true,"family":"Cavaletto","given":"J.F.","affiliations":[],"preferred":false,"id":309794,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nalepa, T.F.","contributorId":95438,"corporation":false,"usgs":true,"family":"Nalepa","given":"T.F.","affiliations":[],"preferred":false,"id":309796,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fanslow, D.L.","contributorId":67845,"corporation":false,"usgs":true,"family":"Fanslow","given":"D.L.","affiliations":[],"preferred":false,"id":309795,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schloesser, D. W.","contributorId":9598,"corporation":false,"usgs":true,"family":"Schloesser","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":309793,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1000992,"text":"1000992 - 2003 - Historic and modern abundance of wild lean lake trout in Michigan waters of Lake Superior: Implications for restoration goals","interactions":[],"lastModifiedDate":"2016-05-23T09:08:07","indexId":"1000992","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Historic and modern abundance of wild lean lake trout in Michigan waters of Lake Superior: Implications for restoration goals","docAbstract":"

Populations of lake trout Salvelinus namaycush in Lake Superior collapsed in the late 1950s due to overfishing and predation by sea lampreys Petromyzon marinus. A binational effort to restore the lean morphotype of lake trout began with the stocking of hatchery-reared fish followed by the chemical control of sea lampreys and closure of the commercial fishery. Previous comparisons of the contemporary abundance of wild lean lake trout with that from historic commercial fishery statistics indicate that abundance was higher historically. However, this conclusion may be biased because several factors—the inclusion of siscowet (the “fat” morphotype of lake trout) in the catch statistics, the soak time of nets, seasonal effects on catch per effort, and the confounding effects of effort targeted at lake whitefish Coregonus clupeaformis—were not accounted for. We developed new indices of historic lean lake trout abundance that correct for these biases and compared them with the assessment data from 1984 to 1998 in Michigan waters of Lake Superior. The modern (1984–1998) abundance of wild lean lake trout is at least as high as that during 1929–1943 in six of eight management areas but lower in one area. Measures to promote and protect naturally reproducing populations have been more successful than previously realized.

","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8675(2003)023<0100:HAMAOW>2.0.CO;2","usgsCitation":"Wilberg, M.J., Hansen, M.J., and Bronte, C.R., 2003, Historic and modern abundance of wild lean lake trout in Michigan waters of Lake Superior: Implications for restoration goals: North American Journal of Fisheries Management, v. 23, no. 1, p. 100-108, https://doi.org/10.1577/1548-8675(2003)023<0100:HAMAOW>2.0.CO;2.","productDescription":"9 p.","startPage":"100","endPage":"108","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":128498,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db68863d","contributors":{"authors":[{"text":"Wilberg, Michael J.","contributorId":36494,"corporation":false,"usgs":true,"family":"Wilberg","given":"Michael","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":310106,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hansen, Michael J. 0000-0001-8522-3876 michaelhansen@usgs.gov","orcid":"https://orcid.org/0000-0001-8522-3876","contributorId":5006,"corporation":false,"usgs":true,"family":"Hansen","given":"Michael","email":"michaelhansen@usgs.gov","middleInitial":"J.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":310105,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bronte, Charles R.","contributorId":83050,"corporation":false,"usgs":true,"family":"Bronte","given":"Charles","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":310107,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":44920,"text":"wri024222 - 2003 - Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of organophosphate pesticides in bottom sediment by gas chromatography with flame photometric detection","interactions":[],"lastModifiedDate":"2021-05-28T18:32:22.275023","indexId":"wri024222","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2002-4222","title":"Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of organophosphate pesticides in bottom sediment by gas chromatography with flame photometric detection","docAbstract":"A method for the isolation of 20 parent organophosphate pesticides and 5 pesticide degradates from bottom-sediment samples is described. The compound O-ethyl-O-methyl-S-proplyphosphorothioate is reported as an estimated concentration because of variable performance. In this method, the sediment samples are centrifuged to remove excess waster mixed with anhydrous sodium sulfate and Soxhlet extracted overnight with dichloromethane (93 percent) and methanol (7 percent). The extract is concentrated and then filtered through a 0.2-micrometer polytetrafluoroethylene membrane syringe filter. An aliquot of the sample extract is quantitatively injected onto two polystyrene-divinylbenzene gel-permeation chromatographic columns connected in series. The compounds are eluted with dichloromethane and a fraction is collected for analysis, with some coextracted interferences, including elemental sulfur, separated and discarded. The aliquot is concentrated and solvent exchanged to ethyl acetate. The extract is analyzed by dual capillary-column gas chromatography with flame photometric detection. Single-operator method detection limits in sodium sulfate matrix samples ranged from 0.81 to 2 micrograms per kilogram. Method performance was validated by spiking all compounds into three different solid matrices (sodium sulfate, bed sediment from Clear Creek, and bed sediment from Evergreen Lake) at three different concentrations. Eight replicates were analyzed at each concentration in each matrix. Mean recoveries of method compounds spiked in Clear Creek samples ranged from 43 to 110 percent, and those in Evergreen Lake samples ranged from 62 to 118 percent for all pesticides. Mean recoveries of method compounds spiked in reagent sodium sulfate samples ranged from 41 to 101 percent for all pesticides. The only exception was O-ethyl-O-methyl-S-propylphosphorothioate, which had an average recovery of 35 percent, and, thus, sample concentration is reported as estimated ('E' remark code).","language":"English","doi":"10.3133/wri024222","usgsCitation":"Jha, V.K., and Wydoski, D.S., 2003, Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of organophosphate pesticides in bottom sediment by gas chromatography with flame photometric detection: U.S. Geological Survey Water-Resources Investigations Report 2002-4222, vi, 30 p., https://doi.org/10.3133/wri024222.","productDescription":"vi, 30 p.","costCenters":[{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true}],"links":[{"id":3798,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://nwql.usgs.gov/Public/pubs/WRIR02-4222.html","linkFileType":{"id":5,"text":"html"}},{"id":82250,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2002/4222/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124006,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/2002/4222/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a53e4b07f02db62bb73","contributors":{"authors":[{"text":"Jha, Virendra Kumar","contributorId":10851,"corporation":false,"usgs":true,"family":"Jha","given":"Virendra","email":"","middleInitial":"Kumar","affiliations":[],"preferred":false,"id":230682,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wydoski, Duane S. dwydoski@usgs.gov","contributorId":3734,"corporation":false,"usgs":true,"family":"Wydoski","given":"Duane","email":"dwydoski@usgs.gov","middleInitial":"S.","affiliations":[],"preferred":true,"id":230681,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70185514,"text":"70185514 - 2003 - Seabird, fisheries, marine mammal, and oceanographic investigations around Kasatochi, Koniuji, and Ulak Islands, August 1996 (SMMOCI 96-3)","interactions":[],"lastModifiedDate":"2017-03-23T09:23:36","indexId":"70185514","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":5330,"text":"U.S. Fish and Wildlife Service Report","active":true,"publicationSubtype":{"id":1}},"seriesNumber":"AMNWR 03/06","title":"Seabird, fisheries, marine mammal, and oceanographic investigations around Kasatochi, Koniuji, and Ulak Islands, August 1996 (SMMOCI 96-3)","docAbstract":"

Although islands in the Aleutians are known to support some of the highest densities of seabirds in the world, their remoteness has limited systematic research on the at-sea distribution of seabirds near these colonies.  Kasatochi, Koniuji, and Ulak islands, in the central Aleutian Islands, together comprise one of nine ecological sites monitored once every 5 years on an annual rotation since 1996 by the Alaska Maritime National Wildlife Refuge (AMNWR).  To supplement annual colony monitoring and examine seabird distribution away from colony sites, the AMNWR personnel in conjunction with U.S. Geological Survey (USGS) researchers, conducted a pelagic survey of the waters around these 3 islands in 1996.

Previous research in this area has focused on the seabird colony sites located on Kasatochi, Koniuji, and Ulak islands.  Although boat-based circumnavigations have been used to evaluate colony populations (Early et al. 1981; Bailey and Trapp 1986; Byrd and Williams 1994; Byrd 1995a, 1995b), wide ranging pelagic surveys to examine foraging patterns had not previously been conducted near the islands.  The goal of this survey was to examine foraging patterns of the seabirds nesting in the study area and identify factors that may explain seabird distribution patterns.

","language":"English","publisher":"U.S. Fish and Wildlife Service","publisherLocation":"Homer, AK","usgsCitation":"Drew, G.S., Piatt, J.F., Byrd, G.V., and Dragoo, D.E., 2003, Seabird, fisheries, marine mammal, and oceanographic investigations around Kasatochi, Koniuji, and Ulak Islands, August 1996 (SMMOCI 96-3): U.S. Fish and Wildlife Service Report AMNWR 03/06, 37 p.","productDescription":"37 p.","numberOfPages":"38","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":338149,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Andreanof Island group, Aleutian Islands, Kasatochi island, Koniuji island, Ulak island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -175.968017578125,\n 52.18403686498285\n ],\n [\n -176.077880859375,\n 52.12337138625387\n ],\n [\n -175.9185791015625,\n 52.005173970555695\n ],\n [\n -175.72082519531247,\n 52.00179230422271\n ],\n [\n -175.4791259765625,\n 52.02207846999333\n ],\n [\n -175.27587890625,\n 52.06262321411284\n ],\n [\n -174.92431640625,\n 52.14360239845529\n ],\n [\n -174.935302734375,\n 52.335339071889386\n ],\n [\n -175.1275634765625,\n 52.342051636387865\n ],\n [\n -175.968017578125,\n 52.18403686498285\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58d4df04e4b05ec79911d1b2","contributors":{"authors":[{"text":"Drew, Gary S. 0000-0002-6789-0891 gdrew@usgs.gov","orcid":"https://orcid.org/0000-0002-6789-0891","contributorId":3311,"corporation":false,"usgs":true,"family":"Drew","given":"Gary","email":"gdrew@usgs.gov","middleInitial":"S.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":685840,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":685841,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Byrd, G. Vernon","contributorId":88416,"corporation":false,"usgs":false,"family":"Byrd","given":"G.","email":"","middleInitial":"Vernon","affiliations":[{"id":6987,"text":"U.S. Fish and Wildlife Sevice","active":true,"usgs":false}],"preferred":false,"id":685842,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dragoo, Donald E.","contributorId":36782,"corporation":false,"usgs":false,"family":"Dragoo","given":"Donald","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":685843,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70161947,"text":"70161947 - 2003 - Movements and habitat requirements of radio tagged manatees in southwest Florida: Implications for restoration assessment","interactions":[],"lastModifiedDate":"2016-01-11T10:16:13","indexId":"70161947","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Movements and habitat requirements of radio tagged manatees in southwest Florida: Implications for restoration assessment","docAbstract":"

No abstract available.

","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"Proceedings of Joint Conference on the Science and Restoration of the Greater Everglades and Florida Bay Ecosystem, April 13-18, 2003, Palm Harbor, Florida","largerWorkSubtype":{"id":19,"text":"Conference Paper"},"conferenceTitle":"From Kissimmee to the Keys","conferenceDate":"April 13-18, 2003","conferenceLocation":"Palm Harbor, FL","language":"English","usgsCitation":"Reid, J., Butler, S., Easton, D.E., and Stith, B., 2003, Movements and habitat requirements of radio tagged manatees in southwest Florida: Implications for restoration assessment, in Proceedings of Joint Conference on the Science and Restoration of the Greater Everglades and Florida Bay Ecosystem, April 13-18, 2003, Palm Harbor, Florida, Palm Harbor, FL, April 13-18, 2003.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":314100,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e049e4b039675d005e3f","contributors":{"authors":[{"text":"Reid, J.P. 0000-0002-8497-1132","orcid":"https://orcid.org/0000-0002-8497-1132","contributorId":59372,"corporation":false,"usgs":true,"family":"Reid","given":"J.P.","affiliations":[],"preferred":false,"id":588161,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butler, Susan M. 0000-0003-3676-9332","orcid":"https://orcid.org/0000-0003-3676-9332","contributorId":46650,"corporation":false,"usgs":true,"family":"Butler","given":"Susan M.","affiliations":[],"preferred":false,"id":588162,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Easton, Dean E.","contributorId":57784,"corporation":false,"usgs":true,"family":"Easton","given":"Dean","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":588163,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stith, Bradley bstith@usgs.gov","contributorId":3596,"corporation":false,"usgs":true,"family":"Stith","given":"Bradley","email":"bstith@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":588164,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70025549,"text":"70025549 - 2003 - Simulation of unsteady flow and solute transport in a tidal river network","interactions":[],"lastModifiedDate":"2021-07-28T16:12:29.677132","indexId":"70025549","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1515,"text":"Engineering Computations (Swansea, Wales)","active":true,"publicationSubtype":{"id":10}},"title":"Simulation of unsteady flow and solute transport in a tidal river network","docAbstract":"A mathematical model and numerical method for water flow and solute transport in a tidal river network is presented. The tidal river network is defined as a system of open channels of rivers with junctions and cross sections. As an example, the Pearl River in China is represented by a network of 104 channels, 62 nodes, and a total of 330 cross sections with 11 boundary section for one of the applications. The simulations are performed with a supercomputer for seven scenarios of water flow and/or solute transport in the Pearl River, China, with different hydrological and weather conditions. Comparisons with available data are shown. The intention of this study is to summarize previous works and to provide a useful tool for water environmental management in a tidal river network, particularly for the Pearl River, China.","language":"English","publisher":"MCB UP","doi":"10.1108/02644400310488853","issn":"02644401","usgsCitation":"Zhan, X., 2003, Simulation of unsteady flow and solute transport in a tidal river network: Engineering Computations (Swansea, Wales), v. 20, no. 5-6, p. 754-767, https://doi.org/10.1108/02644400310488853.","productDescription":"14 p.","startPage":"754","endPage":"767","costCenters":[],"links":[{"id":387508,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b90b3e4b08c986b319638","contributors":{"authors":[{"text":"Zhan, X.","contributorId":26477,"corporation":false,"usgs":true,"family":"Zhan","given":"X.","email":"","affiliations":[],"preferred":false,"id":405607,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70025896,"text":"70025896 - 2003 - Geology of the Ivanhoe Hg-Au district, northern Nevada: Influence of Miocene volcanism, lakes, and active faulting on epithermal mineralization","interactions":[],"lastModifiedDate":"2021-07-27T18:17:32.236705","indexId":"70025896","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Geology of the Ivanhoe Hg-Au district, northern Nevada: Influence of Miocene volcanism, lakes, and active faulting on epithermal mineralization","docAbstract":"

The mercury-gold deposits of the Ivanhoe mining district in northern Nevada formed when middle Miocene rhyolitic volcanism and high-angle faulting disrupted a shallow lacustrine environment. Sinter and replacement mercury deposits formed at and near the paleosurface, and disseminated gold deposits and high-grade gold-silver veins formed beneath the hot spring deposits. The lacustrine environment provided abundant meteoric water; the rhyolites heated the water; and the faults, flow units, and lakebeds provided fluid pathways for the hydrothermal fluids. A shallow lake began to develop in the Ivanhoe area about 16.5 Ma. The lake progressively expanded and covered the entire area with fine-grained lacustrine sediments. Lacustrine sedimentation continued to at least 14.4 Ma, and periodic fluctuations in the size and extent of the lake may have been responses to both climate and nearby volcanism. The eruption of rhyolite and andesite flows and domes periodically disrupted the lacustrine environment and produced interfingered flows and lake sediments. The major pulse of rhyolitic volcanism took place between 15.16 ± 0.05 and 14.92 ± 0.05 Ma. High-angle faulting began in the basement about 15.2 Ma, penetrated to and disrupted the paleosurface after 15.10 ± 0.06 Ma, and largely ceased by 14.92 ± 0.05 Ma. Ground motion related to both faulting and volcanism created debris flows and soft-sediment deformation in the lakebeds. Mercury-gold mineralization was coeval with rhyolite volcanism and high-angle faulting, and it took place about 15.2 to 14.9 Ma. At and near the paleosurface, hydrothermal fluids migrated through tuffaceous sediments above relatively impermeable volcanic and Paleozoic units, creating chalcedonic, cinnabar-bearing replacement bodies and sinters. Disseminated gold was deposited in sedimentary and volcanic rocks beneath the mercury deposits, although the hydrologic path between the two ore types is unclear. Higher-grade gold-silver deposits formed in massive rhyolites and Paleozoic quartzites at deeper levels, and these mineralized zones possibly represent the feeder zones for the higher-level deposits. Fluctuations in the ground-water table locally produced hydrothermal oxidation of the near-surface mercury and disseminated gold deposits. The locus of mineralization shifted with time, moving south and east from its inception point in the west-central part of the district. Thus, although mineralization in the district took place during a span of 300,000 years, the duration of mineralization at any one place probably was much shorter. The low-sulfidation deposits of the Ivanhoe district formed at the same time and under similar conditions as those in the nearby Midas district, 15 km to the northwest, which includes the large, high-grade Ken Snyder gold-silver epithermal vein deposit. The exposures in the Ivanhoe district are interpreted to represent the near-surface example of the paleosurface that originally was present above the Midas mineralizing system. The resulting combined Ivanhoe-Midas model provides an exploration guide for epithermal deposits in similar geologic environments in northern Nevada.

","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.98.2.409","issn":"03610128","usgsCitation":"Wallace, A.R., 2003, Geology of the Ivanhoe Hg-Au district, northern Nevada: Influence of Miocene volcanism, lakes, and active faulting on epithermal mineralization: Economic Geology, v. 98, no. 2, p. 409-424, https://doi.org/10.2113/gsecongeo.98.2.409.","productDescription":"16 p.","startPage":"409","endPage":"424","costCenters":[],"links":[{"id":387485,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"98","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a25cae4b0c8380cd58b8d","contributors":{"authors":[{"text":"Wallace, A. R.","contributorId":59445,"corporation":false,"usgs":true,"family":"Wallace","given":"A.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":406989,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1003002,"text":"1003002 - 2003 - Review of techniques to prevent introduction of zebra mussels (Dreissena polymorpha) during native mussel (Unionoidea) conservation activities","interactions":[],"lastModifiedDate":"2022-06-09T15:30:22.415002","indexId":"1003002","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2455,"text":"Journal of Shellfish Research","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Review of techniques to prevent introduction of zebra mussels (Dreissena polymorpha) during native mussel (Unionoidea) conservation activities","title":"Review of techniques to prevent introduction of zebra mussels (Dreissena polymorpha) during native mussel (Unionoidea) conservation activities","docAbstract":"Because of the declines in diversity and abundance of native freshwater mussels (superfamily Unionoidea), and the potential decimation of populations of native mussels resulting from the rapid spread of the exotic zebra mussel Dreissena polymorpha, management options to eliminate or reduce the threat of the zebra mussel are needed. Relocating native mussels to refugia (artificial and natural) has been proposed to mitigate the threat of zebra mussels to native species. Relocation of native mussels to refugia such as fish hatchery facilities or natural habitats within their historic range. Which are unlikely to be infested by zebra mussels, necessitates that protocols be developed to prevent the inadvertent introduction of zebra mussels. Several recent studies have developed Such protocols, and have assessed their effectiveness on the health and survival of native mussels during subsequent relocation to various refugia. The purpose of this project is to synthesize and evaluate the current protocols and to develop a set of procedures that resource managers and researchers should consider before conducting conservation activities in zebra mussel infested waters. We found that the existing protocols have many common points of concern, such as facility modification and suitability, zebra mussel risk assessment and management procedures, and health and disease management procedures. These conservation protocols may have broad applicability to other situations and locations. A summary and evaluation of the information in these main areas, along with recommended guidelines, are presented in this article.","language":"English","publisher":"North Carolina State Univ, Dept Environmental & Molecular Toxicology","publisherLocation":"Raleigh, NC","issn":"07308000","usgsCitation":"Cope, W., Newton, T., and Gatenby, C., 2003, Review of techniques to prevent introduction of zebra mussels (Dreissena polymorpha) during native mussel (Unionoidea) conservation activities: Journal of Shellfish Research, v. 22, no. 1, p. 177-184.","productDescription":"8 p.","startPage":"177","endPage":"184","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":128493,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":401988,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.shellfish.org/tables-of-contents"}],"otherGeospatial":"North 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America\"}}]}","volume":"22","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a17e4b07f02db604056","contributors":{"authors":[{"text":"Cope, W.G.","contributorId":71918,"corporation":false,"usgs":true,"family":"Cope","given":"W.G.","email":"","affiliations":[],"preferred":false,"id":312559,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Newton, T.J.","contributorId":104428,"corporation":false,"usgs":true,"family":"Newton","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":312560,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gatenby, C.M.","contributorId":31334,"corporation":false,"usgs":true,"family":"Gatenby","given":"C.M.","affiliations":[],"preferred":false,"id":312558,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70025227,"text":"70025227 - 2003 - Collecting, shipping, storing, and imaging snow crystals and ice grains with low-temperature scanning electron microscopy","interactions":[],"lastModifiedDate":"2012-03-12T17:20:28","indexId":"70025227","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2736,"text":"Microscopy Research and Technique","active":true,"publicationSubtype":{"id":10}},"title":"Collecting, shipping, storing, and imaging snow crystals and ice grains with low-temperature scanning electron microscopy","docAbstract":"Methods to collect, transport, and store samples of snow and ice have been developed that enable detailed observations of these samples with a technique known as low-temperature scanning electron microscopy (LTSEM). This technique increases the resolution and ease with which samples of snow and ice can be observed, studied, and photographed. Samples are easily collected in the field and have been shipped to the electron microscopy laboratory by common air carrier from distances as far as 5,000 miles. Delicate specimens of snow crystals and ice grains survive the shipment procedures and have been stored for as long as 3 years without undergoing any structural changes. The samples are not subjected to the melting or sublimation artifacts. LTSEM allows individual crystals to be observed for several hours with no detectable changes. Furthermore, the instrument permits recording of photographs containing the parallax information necessary for three-dimensional imaging of the true shapes of snowflakes, snow crystals, snow clusters, ice grains, and interspersed air spaces. This study presents detailed descriptions of the procedures that have been used successfully in the field and the laboratory to collect, ship, store, and image snow crystals and ice grains. Published 2003 Wiley-Liss, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Microscopy Research and Technique","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/jemt.10383","issn":"1059910X","usgsCitation":"Erbe, E., Rango, A., Foster, J., Josberger, E., Pooley, C., and Wergin, W., 2003, Collecting, shipping, storing, and imaging snow crystals and ice grains with low-temperature scanning electron microscopy: Microscopy Research and Technique, v. 62, no. 1, p. 19-32, https://doi.org/10.1002/jemt.10383.","startPage":"19","endPage":"32","numberOfPages":"14","costCenters":[],"links":[{"id":478537,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/jemt.10383","text":"Publisher Index Page"},{"id":209390,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/jemt.10383"},{"id":235772,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"62","issue":"1","noUsgsAuthors":false,"publicationDate":"2003-08-18","publicationStatus":"PW","scienceBaseUri":"5059f7afe4b0c8380cd4cc52","contributors":{"authors":[{"text":"Erbe, E.F.","contributorId":33877,"corporation":false,"usgs":true,"family":"Erbe","given":"E.F.","email":"","affiliations":[],"preferred":false,"id":404308,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rango, A.","contributorId":94449,"corporation":false,"usgs":true,"family":"Rango","given":"A.","affiliations":[],"preferred":false,"id":404312,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Foster, J.","contributorId":89687,"corporation":false,"usgs":true,"family":"Foster","given":"J.","affiliations":[],"preferred":false,"id":404311,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Josberger, E.G.","contributorId":61161,"corporation":false,"usgs":true,"family":"Josberger","given":"E.G.","email":"","affiliations":[],"preferred":false,"id":404310,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pooley, C.","contributorId":55185,"corporation":false,"usgs":true,"family":"Pooley","given":"C.","email":"","affiliations":[],"preferred":false,"id":404309,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wergin, W.P.","contributorId":106280,"corporation":false,"usgs":true,"family":"Wergin","given":"W.P.","email":"","affiliations":[],"preferred":false,"id":404313,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70025187,"text":"70025187 - 2003 - Bacterial transport experiments in fractured crystalline bedrock","interactions":[],"lastModifiedDate":"2018-11-19T09:07:43","indexId":"70025187","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Bacterial transport experiments in fractured crystalline bedrock","docAbstract":"The efficiency of contaminant biodegradation in ground water depends, in part, on the transport properties of the degrading bacteria. Few data exist concerning the transport of bacteria in saturated bedrock, particularly at the field scale. Bacteria and microsphere tracer experiments were conducted in a fractured crystalline bedrock under forced-gradient conditions over a distance of 36 m. Bacteria isolated from the local ground water were chosen on the basis of physicochemical and physiological differences (shape, cell-wall type, motility), and were differentially stained so that their transport behavior could be compared. No two bacterial strains transported in an identical manner, and microspheres produced distinctly different breakthrough curves than bacteria. Although there was insufficient control in this field experiment to completely separate the effects of bacteria shape, reaction to Gram staining, cell size, and motility on transport efficiency, it was observed that (1) the nonmotile, mutant strain exhibited better fractional recovery than the motile parent strain; (2) Gram-negative rod-shaped bacteria exhibited higher fractional recovery relative to the Gram-positive rod-shaped strain of similar size; and (3) coccoidal (spherical-shaped) bacteria transported better than all but one strain of the rod-shaped bacteria. The field experiment must be interpreted in the context of the specific bacterial strains and ground water environment in which they were conducted, but experimental results suggest that minor differences in the physical properties of bacteria can lead to major differences in transport behavior at the field scale.","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.2003.tb02406.x","issn":"0017467X","usgsCitation":"Becker, M., Metge, D., Collins, S., Shapiro, A., and Harvey, R., 2003, Bacterial transport experiments in fractured crystalline bedrock: Ground Water, v. 41, no. 5, p. 682-689, https://doi.org/10.1111/j.1745-6584.2003.tb02406.x.","productDescription":"8 p.","startPage":"682","endPage":"689","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":209355,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2003.tb02406.x"},{"id":235688,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-12-13","publicationStatus":"PW","scienceBaseUri":"5059ef9be4b0c8380cd4a34a","contributors":{"authors":[{"text":"Becker, M.W.","contributorId":35896,"corporation":false,"usgs":true,"family":"Becker","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":404161,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Metge, D.W.","contributorId":51477,"corporation":false,"usgs":true,"family":"Metge","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":404162,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Collins, S.A.","contributorId":63947,"corporation":false,"usgs":true,"family":"Collins","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":404163,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shapiro, A.M. 0000-0002-6425-9607","orcid":"https://orcid.org/0000-0002-6425-9607","contributorId":88384,"corporation":false,"usgs":true,"family":"Shapiro","given":"A.M.","affiliations":[],"preferred":true,"id":404164,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Harvey, R.W. 0000-0002-2791-8503","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":11757,"corporation":false,"usgs":true,"family":"Harvey","given":"R.W.","affiliations":[],"preferred":false,"id":404160,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70025072,"text":"70025072 - 2003 - Geology of the MER 2003 \"Elysium\" candidate landing site in southeastern Utopia Planitia, Mars","interactions":[],"lastModifiedDate":"2018-12-05T09:03:27","indexId":"70025072","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","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":"Geology of the MER 2003 \"Elysium\" candidate landing site in southeastern Utopia Planitia, Mars","docAbstract":"

The NASA Mars Exploration Rover (MER) Project has been considering a landing-site ellipse designated EP78B2 in southeastern Utopia Planitia, southwest of Elysium Mons. The site appears to be relatively safe for a MER landing site because of its predicted low wind velocities in mesoscale atmospheric circulation models and its low surface roughness at various scales as indicated by topographic and imaging data sets. Previously, the site's surface rocks have been interpreted to be marine sediments or lava flows. In addition, we suggest that Late Noachian to Early Hesperian collapse and mass wasting of Noachian highland rocks contributed to the deposition of detritus in the area of the ellipse. Furthermore, we document partial Late Hesperian to Early Amazonian resurfacing of the ellipse by flows and vents that may be of mud or silicate volcanic origin. A rover investigation of the Utopia landing site using the MER Athena instrument package might address some fundamental aspects of Martian geologic evolution, such as climate change, hydrologic evolution, and magmatic and tectonic history.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2003JE002054","issn":"01480227","usgsCitation":"Tanaka, K.L., Carr, M.H., Skinner, J., Gilmore, M.S., and Hare, T.M., 2003, Geology of the MER 2003 \"Elysium\" candidate landing site in southeastern Utopia Planitia, Mars: Journal of Geophysical Research E: Planets, v. 108, no. E12, 19 p., https://doi.org/10.1029/2003JE002054.","productDescription":"19 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":478549,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2003je002054","text":"Publisher Index Page"},{"id":235720,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars; Utopia Planitia","volume":"108","issue":"E12","noUsgsAuthors":false,"publicationDate":"2003-11-21","publicationStatus":"PW","scienceBaseUri":"505a25fae4b0c8380cd58cf7","contributors":{"authors":[{"text":"Tanaka, Kenneth L. ktanaka@usgs.gov","contributorId":610,"corporation":false,"usgs":true,"family":"Tanaka","given":"Kenneth","email":"ktanaka@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":403699,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carr, Michael H.","contributorId":61894,"corporation":false,"usgs":true,"family":"Carr","given":"Michael","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":403702,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Skinner, James A. 0000-0002-3644-7010 jskinner@usgs.gov","orcid":"https://orcid.org/0000-0002-3644-7010","contributorId":3187,"corporation":false,"usgs":true,"family":"Skinner","given":"James A.","email":"jskinner@usgs.gov","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":403703,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gilmore, Martha S.","contributorId":211064,"corporation":false,"usgs":false,"family":"Gilmore","given":"Martha","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":403700,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hare, Trent M. 0000-0001-8842-389X thare@usgs.gov","orcid":"https://orcid.org/0000-0001-8842-389X","contributorId":3188,"corporation":false,"usgs":true,"family":"Hare","given":"Trent","email":"thare@usgs.gov","middleInitial":"M.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":403701,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70025183,"text":"70025183 - 2003 - Survey methods for assessing land cover map accuracy","interactions":[],"lastModifiedDate":"2012-03-12T17:20:28","indexId":"70025183","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1573,"text":"Environmental and Ecological Statistics","active":true,"publicationSubtype":{"id":10}},"title":"Survey methods for assessing land cover map accuracy","docAbstract":"The increasing availability of digital photographic materials has fueled efforts by agencies and organizations to generate land cover maps for states, regions, and the United States as a whole. Regardless of the information sources and classification methods used, land cover maps are subject to numerous sources of error. In order to understand the quality of the information contained in these maps, it is desirable to generate statistically valid estimates of accuracy rates describing misclassification errors. We explored a full sample survey framework for creating accuracy assessment study designs that balance statistical and operational considerations in relation to study objectives for a regional assessment of GAP land cover maps. We focused not only on appropriate sample designs and estimation approaches, but on aspects of the data collection process, such as gaining cooperation of land owners and using pixel clusters as an observation unit. The approach was tested in a pilot study to assess the accuracy of Iowa GAP land cover maps. A stratified two-stage cluster sampling design addressed sample size requirements for land covers and the need for geographic spread while minimizing operational effort. Recruitment methods used for private land owners yielded high response rates, minimizing a source of nonresponse error. Collecting data for a 9-pixel cluster centered on the sampled pixel was simple to implement, and provided better information on rarer vegetation classes as well as substantial gains in precision relative to observing data at a single-pixel.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental and Ecological Statistics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1023/A:1025107023980","issn":"13528505","usgsCitation":"Nusser, S., and Klaas, E., 2003, Survey methods for assessing land cover map accuracy: Environmental and Ecological Statistics, v. 10, no. 3, p. 309-331, https://doi.org/10.1023/A:1025107023980.","startPage":"309","endPage":"331","numberOfPages":"23","costCenters":[],"links":[{"id":209338,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1025107023980"},{"id":235651,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba28ae4b08c986b31f79b","contributors":{"authors":[{"text":"Nusser, S.M.","contributorId":49302,"corporation":false,"usgs":true,"family":"Nusser","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":404142,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Klaas, Erwin E.","contributorId":21487,"corporation":false,"usgs":true,"family":"Klaas","given":"Erwin E.","affiliations":[],"preferred":false,"id":404141,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}