The U.S. Geological Survey (USGS) and the Department of the Interior (DOI) were among the earliest to recognize the potential applications of satellite land remote sensing for management of the country's land and water resources…not only as a user but also as a program participant responsible for final data processing, product generation, and data distribution. With guidance from Dr. William T. Pecora, who was the Survey's Director at that time and later Under Secretary of Interior, the Earth Resources Observation Systems (EROS) Program was established in 1966 as a focal point for these activities within the Department. Dr. Pecora was among the few who could envision a role for the Survey and the Department as active participants in programs yet to come--like the Landsat, Magsat, Seasat and, most recently, Shuttle Imaging Radar programs.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Pecora VIII Symposium","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"The Augustana Research Institute","publisherLocation":"Sioux Falls, SD","usgsCitation":"Frederick, D.G., 1983, U.S. Geological Survey land remote sensing activities: Pecora VIII Symposium, p. 28-30.","productDescription":"3 p.","startPage":"28","endPage":"30","numberOfPages":"3","costCenters":[],"links":[{"id":288824,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7880e4b0abf75cf2d789","contributors":{"authors":[{"text":"Frederick, Doyle G.","contributorId":88873,"corporation":false,"usgs":true,"family":"Frederick","given":"Doyle","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":494960,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1003321,"text":"1003321 - 1983 - Fish abundance and population stability in a reservoir tailwater and an unregulated headwater stream","interactions":[],"lastModifiedDate":"2025-04-01T15:56:19.048649","indexId":"1003321","displayToPublicDate":"1983-10-03T00:00:00","publicationYear":"1983","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":"Fish abundance and population stability in a reservoir tailwater and an unregulated headwater stream","docAbstract":"Fish abundance and population stability were compared in the tailwater and in an unregulated tributary of Barren River Lake, a flood control reservoir in south central Kentucky. Fish abundance was greater in the tailwater near the dam and was dominated by three species common in the reservoir: gizzard shad (Dorosoma cepedianum), bluegills (Lepomis macrochirus), and white crappies (Pomoxis annularis). Three riverine suckers were less abundant in the tailwater than in the unregulated stream: northern hog suckers (Hypentelium nigricans), black redhorse (Moxostoma duquesnei), and golden redhorse (Moxostoma erythrurum). The fish populations in the tailwater, particularly common carp (Cyprinus carpio), northern hog suckers, black redhorse, and golden redhorse, were less stable than those in the unregulated stream. Population stability is defined as the extent to which fish remain in a stream section. This study suggests that the occurrence of reservoir species in the tailwater was the result of fish passage from the reservoir during high discharges in fall and winter. Reservoir operations (altered flow, low summer water temperature, and poor summer water quality) probably were responsible for the unstable populations of common carp and riverine suckers in the tailwater.
","language":"English","publisher":"Oxford Academic","doi":"10.1577/1548-8659(1983)3<395:FAAPSI>2.0.CO;2","usgsCitation":"Jacobs, K., and Swink, W., 1983, Fish abundance and population stability in a reservoir tailwater and an unregulated headwater stream: North American Journal of Fisheries Management, v. 3, no. 4, p. 395-402, https://doi.org/10.1577/1548-8659(1983)3<395:FAAPSI>2.0.CO;2.","productDescription":"8 p.","startPage":"395","endPage":"402","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":134216,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Kentucky","otherGeospatial":"Barren River Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -86.12502910459672,\n 36.99148303387227\n ],\n [\n -86.12502910459672,\n 36.75276074757184\n ],\n [\n -85.99455242039713,\n 36.75276074757184\n ],\n [\n -85.99455242039713,\n 36.99148303387227\n ],\n [\n -86.12502910459672,\n 36.99148303387227\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"3","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e499ee4b07f02db5bcb99","contributors":{"authors":[{"text":"Jacobs, K.E.","contributorId":57813,"corporation":false,"usgs":true,"family":"Jacobs","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":313115,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swink, W.D.","contributorId":66200,"corporation":false,"usgs":true,"family":"Swink","given":"W.D.","affiliations":[],"preferred":false,"id":313116,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1001636,"text":"1001636 - 1983 - A laser system to remotely sense bird movements","interactions":[],"lastModifiedDate":"2024-11-01T16:20:26.027717","indexId":"1001636","displayToPublicDate":"1983-10-03T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"A laser system to remotely sense bird movements","docAbstract":"No abstract available.
","language":"English","publisher":"Wiley","doi":"10.2307/3808183","usgsCitation":"Korschgen, C.E., Green, W.L., and Seasholtz, R., 1983, A laser system to remotely sense bird movements: Journal of Wildlife Management, v. 47, no. 4, p. 1159-1162, https://doi.org/10.2307/3808183.","productDescription":"4 p.","startPage":"1159","endPage":"1162","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":130641,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ae312","contributors":{"authors":[{"text":"Korschgen, Carl E.","contributorId":29354,"corporation":false,"usgs":true,"family":"Korschgen","given":"Carl","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":311401,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Green, William L.","contributorId":84324,"corporation":false,"usgs":true,"family":"Green","given":"William","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":311402,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Seasholtz, R.G.","contributorId":65800,"corporation":false,"usgs":true,"family":"Seasholtz","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":311403,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1001524,"text":"1001524 - 1983 - Feeding ecology of mallards wintering in Nebraska","interactions":[],"lastModifiedDate":"2024-11-01T15:57:40.211683","indexId":"1001524","displayToPublicDate":"1983-10-03T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Feeding ecology of mallards wintering in Nebraska","docAbstract":"Food use by mallards (Anas platyrhynchos) wintering on the Platte River in south central Nebraska was determined from mid-December to early March 1978-80. Mallards foraged in river channels, irrigation drainage canals, and agricultural areas. Plant matter formed 97% of the diet (dry weight) and diets did not vary between sexes (P > 0.05). Waste corn was the principal food consumed and formed 46 and 62% of the diets of males and females, respectively. Milo, common duckweed (Lemna minor), smartweed (Polygonum spp.), and barnyardgrass (Echinochloa muricata) composed most of the remaining plant matter ingested. Mallards fed intensively in riparian wetland habitat to obtain invertebrates, but few were consumed because of limited abundance. Dietary protein was lower than reported among mallards wintering in Louisiana. Field feeding occurred primarily in grazed corn stubble and cattle feedlots. The distances traveled to feed, and the duration and timing of feeding varied with snow cover and season phenology. Competition for food was markedly higher during the cold winter of 1979 when heavy snow cover was present.
","language":"English","publisher":"Wiley","doi":"10.2307/3808163","usgsCitation":"Jorde, D., Krapu, G.L., and Crawford, R., 1983, Feeding ecology of mallards wintering in Nebraska: Journal of Wildlife Management, v. 47, no. 4, p. 1044-1053, https://doi.org/10.2307/3808163.","productDescription":"10 p.","startPage":"1044","endPage":"1053","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133793,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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The appropriate statistical assumptions for discriminant are illustrated, and both classification and group separation approaches are outlined. Three assumptions that are crucial in ecological studies are discussed at length, and the consequences of their violation are developed. These assumptions are: (1) equality of dispersions, (2) identifiability of prior probabilities, and (3) precise and accurate estimation of means and dispersions. The use of discriminant functions for purposes of interpreting ecological relationships is also discussed. It is suggested that the common practice of imputing ecological meaning to the signs and magnitudes of coefficients be replaced by an assessment of structure coefficients. Finally, the potential and limitations of representation of data in canonical space are considered, and some cautionary points are made concerning ecological interpretation of patterns in canonical space.
","language":"English","publisher":"Ecological Society of America","doi":"10.2307/1937836","usgsCitation":"Williams, B.K., 1983, Some observations on the use of discriminant analysis in ecology: Ecology, v. 64, no. 5, p. 1283-1291, https://doi.org/10.2307/1937836.","productDescription":"9 p.","startPage":"1283","endPage":"1291","numberOfPages":"9","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":194339,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e8e4b07f02db5e8f5d","contributors":{"authors":[{"text":"Williams, Byron K. 0000-0001-7644-1396","orcid":"https://orcid.org/0000-0001-7644-1396","contributorId":207067,"corporation":false,"usgs":true,"family":"Williams","given":"Byron","email":"","middleInitial":"K.","affiliations":[{"id":554,"text":"Science and Decisions Center","active":true,"usgs":true}],"preferred":true,"id":334718,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70185622,"text":"70185622 - 1983 - Transport of reacting solutes in porous media: Relation between mathematical nature of problem formulation and chemical nature of reactions","interactions":[],"lastModifiedDate":"2020-01-20T19:57:34","indexId":"70185622","displayToPublicDate":"1983-10-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Transport of reacting solutes in porous media: Relation between mathematical nature of problem formulation and chemical nature of reactions","docAbstract":"Examples involving six broad reaction classes show that the nature of transport-affecting chemistry may have a profound effect on the mathematical character of solute transport problem formulation. Substantive mathematical diversity among such formulations is brought about principally by reaction properties that determine whether (1) the reaction can be regarded as being controlled by local chemical equilibria or whether it must be considered as being controlled by kinetics, (2) the reaction is homogeneous or heterogeneous, (3) the reaction is a surface reaction (adsorption, ion exchange) or one of the reactions of classical chemistry (e.g., precipitation, dissolution, oxidation, reduction, complex formation). These properties, as well as the choice of means to describe them, stipulate, for instance, (1) the type of chemical entities for which a formulation's basic, mass-balance equations should be written; (2) the nature of mathematical transformations needed to change the problem's basic equations into operational ones. These and other influences determine such mathematical features of problem formulations as the nature of the operational transport-equation system (e.g., whether it involves algebraic, partial-differential, or integro-partial-differential simultaneous equations), the type of nonlinearities of such a system, and the character of the boundaries (e.g., whether they are stationary or moving). Exploration of the reasons for the dependence of transport mathematics on transport chemistry suggests that many results of this dependence stem from the basic properties of the reactions' chemical-relation (i.e., equilibrium or rate) equations.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR019i005p01231","usgsCitation":"Rubin, J., 1983, Transport of reacting solutes in porous media: Relation between mathematical nature of problem formulation and chemical nature of reactions: Water Resources Research, v. 19, no. 5, p. 1231-1252, https://doi.org/10.1029/WR019i005p01231.","productDescription":"22 p. ","startPage":"1231","endPage":"1252","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338324,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"58d63040e4b05ec799131117","contributors":{"authors":[{"text":"Rubin, Jacob","contributorId":23918,"corporation":false,"usgs":true,"family":"Rubin","given":"Jacob","email":"","affiliations":[],"preferred":false,"id":686145,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1013990,"text":"1013990 - 1983 - Incubator-aquarium for small-scale egg incubation and rearing of fry and fingerlings","interactions":[],"lastModifiedDate":"2025-07-31T16:44:18.015783","indexId":"1013990","displayToPublicDate":"1983-10-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3196,"text":"Progressive Fish-Culturist","active":true,"publicationSubtype":{"id":10}},"title":"Incubator-aquarium for small-scale egg incubation and rearing of fry and fingerlings","docAbstract":"No abstract available.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1983)45[200:IFSEIA]2.0.CO;2","usgsCitation":"McAllister, P.E., Phelps, S., Owens, W.J., and Wilson, G., 1983, Incubator-aquarium for small-scale egg incubation and rearing of fry and fingerlings: Progressive Fish-Culturist, v. 45, no. 4, p. 200-202, https://doi.org/10.1577/1548-8659(1983)45[200:IFSEIA]2.0.CO;2.","productDescription":"3 p.","startPage":"200","endPage":"202","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":132064,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fce4b07f02db5f5357","contributors":{"authors":[{"text":"McAllister, P. E.","contributorId":71913,"corporation":false,"usgs":true,"family":"McAllister","given":"P.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":319577,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Phelps, S.R.","contributorId":39714,"corporation":false,"usgs":true,"family":"Phelps","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":319575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Owens, W. J.","contributorId":15968,"corporation":false,"usgs":true,"family":"Owens","given":"W.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":319574,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilson, G.A.","contributorId":43716,"corporation":false,"usgs":true,"family":"Wilson","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":319576,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011396,"text":"70011396 - 1983 - Deep earthquakes beneath Mount St. Helens: Evidence for magmatic gas transport?","interactions":[],"lastModifiedDate":"2025-12-08T16:49:00.126663","indexId":"70011396","displayToPublicDate":"1983-09-30T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Deep earthquakes beneath Mount St. Helens: Evidence for magmatic gas transport?","docAbstract":"Small-magnitude earthquakes began beneath Mount St. Helens 40 days before the eruption of 20 March 1982. Unlike earlier preeruption seismicity for this volcano, which had been limited to shallow events (less than 3 kilometers), many of these earthquakes were deep (between 5 and 11 kilometers). The location of these preeruptive events at such depth indicates that a larger volume of the volcanic system was affected prior to the 20 March eruption than prior to any of the earlier dome-building eruptions. The depth-time relation between the deep earthquakes and the explosive onset of the eruption is compatible with the upward migration of magmatic gas released from a separate deep reservoir.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1391","issn":"00368075","usgsCitation":"Weaver, C., Zollweg, J., and Malone, S.D., 1983, Deep earthquakes beneath Mount St. Helens: Evidence for magmatic gas transport?: Science, v. 221, no. 4618, p. 1391-1394, https://doi.org/10.1126/science.221.4618.1391.","productDescription":"4 p.","startPage":"1391","endPage":"1394","costCenters":[],"links":[{"id":221664,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.31513893613513,\n 46.2547357549887\n ],\n [\n -122.31513893613513,\n 46.1110590427451\n ],\n [\n -122.02858378694158,\n 46.1110590427451\n ],\n [\n -122.02858378694158,\n 46.2547357549887\n ],\n [\n -122.31513893613513,\n 46.2547357549887\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe23e4b0c8380cd4eb3b","contributors":{"authors":[{"text":"Weaver, C.S.","contributorId":57874,"corporation":false,"usgs":true,"family":"Weaver","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":360995,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zollweg, J.E.","contributorId":61046,"corporation":false,"usgs":true,"family":"Zollweg","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":360996,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Malone, S. 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A blast of hot pumice, dome rocks, and gas dislodged crater-wall snow that avalanched through the crater and down the north flank. Snow in the crater swiftly melted to form a transient lake, from which a destructive flood and lahar swept down the north flank and the North Fork Toutle River.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1394","issn":"00368075","usgsCitation":"Waitt, R.B., Pierson, T., MacLeod, N.S., Janda, R.J., Voight, B., and Holcomb, R.T., 1983, Eruption-triggered avalanche, flood, and lahar at Mount St. Helens - Effects of winter snowpack: Science, v. 221, no. 4618, p. 1394-1397, https://doi.org/10.1126/science.221.4618.1394.","productDescription":"4 p.","startPage":"1394","endPage":"1397","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":220756,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.31513893613513,\n 46.2547357549887\n ],\n [\n -122.31513893613513,\n 46.1110590427451\n ],\n [\n -122.02858378694158,\n 46.1110590427451\n ],\n [\n -122.02858378694158,\n 46.2547357549887\n ],\n [\n -122.31513893613513,\n 46.2547357549887\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0a51e4b0c8380cd522d8","contributors":{"authors":[{"text":"Waitt, R. B. Jr.","contributorId":48558,"corporation":false,"usgs":true,"family":"Waitt","given":"R.","suffix":"Jr.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":360574,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pierson, T.C. 0000-0001-9002-4273","orcid":"https://orcid.org/0000-0001-9002-4273","contributorId":41855,"corporation":false,"usgs":true,"family":"Pierson","given":"T.C.","affiliations":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":360573,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"MacLeod, N. S.","contributorId":55816,"corporation":false,"usgs":true,"family":"MacLeod","given":"N.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":360575,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Janda, R. 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T.","contributorId":99146,"corporation":false,"usgs":true,"family":"Holcomb","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":360577,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70011339,"text":"70011339 - 1983 - Gas emissions and the eruptions of Mount St. Helens through 1982","interactions":[],"lastModifiedDate":"2025-11-25T16:53:51.014725","indexId":"70011339","displayToPublicDate":"1983-09-30T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Gas emissions and the eruptions of Mount St. Helens through 1982","docAbstract":"The monitoring of gas emissions from Mount St. Helens includes daily airborne measurements of sulfur dioxide in the volcanic plume and monthly sampling of gases from crater fumaroles. The composition of the fumarolic gases has changed slightly since 1980: the water content increased from 90 to 98 percent, and the carbon dioxide concentrations decreased from about 10 to 1 percent. The emission rates of sulfur dioxide and carbon dioxide were at their peak during July and August 1980, decreased rapidly in late 1980, and have remained low and decreased slightly through 1981 and 1982. These patterns suggest steady outgassing of a single batch of magma (with a volume of not less than 0.3 cubic kilometer) to which no significant new magma has been added since mid-1980. The gas data were useful in predicting eruptions in August 1980 and June 1981.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1383","issn":"00368075","usgsCitation":"Casadevall, T., Rose, W., Gerlach, T., Greenland, L., Ewert, J., Wunderman, R., and Symonds, R., 1983, Gas emissions and the eruptions of Mount St. Helens through 1982: Science, v. 221, no. 4618, p. 1383-1385, https://doi.org/10.1126/science.221.4618.1383.","productDescription":"3 p.","startPage":"1383","endPage":"1385","costCenters":[],"links":[{"id":220830,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.32291374577194,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.30965046710372\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a14c8e4b0c8380cd54b70","contributors":{"authors":[{"text":"Casadevall, T.","contributorId":89010,"corporation":false,"usgs":true,"family":"Casadevall","given":"T.","affiliations":[],"preferred":false,"id":360872,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rose, W.","contributorId":49101,"corporation":false,"usgs":true,"family":"Rose","given":"W.","affiliations":[],"preferred":false,"id":360869,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gerlach, T.","contributorId":106358,"corporation":false,"usgs":true,"family":"Gerlach","given":"T.","email":"","affiliations":[],"preferred":false,"id":360873,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Greenland, L. P.","contributorId":56368,"corporation":false,"usgs":true,"family":"Greenland","given":"L. 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The last seven of these eruptions, starting with that of mid-April 1981, were predicted between 3 days and 3 weeks in advance. Precursory seismicity, deformation of the crater floor and the lava dome, and, to a lesser extent, gas emissions provided telltale evidence of forthcoming eruptions. The newly developed capability for prediction reduced risk to life and property and influenced land-use decisions.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1369","issn":"00368075","usgsCitation":"Swanson, D.A., Casadevall, T.J., Dzurisin, D., Malone, S.D., Newhall, C.G., and Weaver, C., 1983, Predicting eruptions at Mount St. Helens, June 1980 through December 1982: Science, v. 221, no. 4618, p. 1369-1376, https://doi.org/10.1126/science.221.4618.1369.","productDescription":"8 p.","startPage":"1369","endPage":"1376","costCenters":[],"links":[{"id":221509,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.32291374577194,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.30965046710372\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a81b4e4b0c8380cd7b6ac","contributors":{"authors":[{"text":"Swanson, D. A.","contributorId":34102,"corporation":false,"usgs":true,"family":"Swanson","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":360496,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Casadevall, T. J.","contributorId":96680,"corporation":false,"usgs":true,"family":"Casadevall","given":"T.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":360501,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dzurisin, D.","contributorId":76067,"corporation":false,"usgs":true,"family":"Dzurisin","given":"D.","email":"","affiliations":[],"preferred":false,"id":360499,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Malone, S. D.","contributorId":48310,"corporation":false,"usgs":true,"family":"Malone","given":"S.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":360497,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Newhall, C. G.","contributorId":93056,"corporation":false,"usgs":true,"family":"Newhall","given":"C.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":360500,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Weaver, C.S.","contributorId":57874,"corporation":false,"usgs":true,"family":"Weaver","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":360498,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70011205,"text":"70011205 - 1983 - Deformation monitoring at Mount St. Helens in 1981 and 1982","interactions":[],"lastModifiedDate":"2025-11-25T16:05:36.493658","indexId":"70011205","displayToPublicDate":"1983-09-30T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Deformation monitoring at Mount St. Helens in 1981 and 1982","docAbstract":"For several weeks before each eruption of Mount St. Helens in 1981 and 1982, viscous magma rising in the feeder conduit inflated the lava dome and shoved the crater floor laterally against the immobile crater walls, producing ground cracks and thrust faults. The rates of deformation accelerated before eruptions, and thus it was possible to predict eruptions 3 to 19 days in advance. Lack of deformation outside the crater showed that intrusion of magma during 1981 and 1982 was not voluminous.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1378","issn":"00368075","usgsCitation":"Chadwick, W., Swanson, D.A., Iwatsubo, E., Heliker, C., and Leighley, T., 1983, Deformation monitoring at Mount St. Helens in 1981 and 1982: Science, v. 221, no. 4618, p. 1378-1380, https://doi.org/10.1126/science.221.4618.1378.","productDescription":"3 p.","startPage":"1378","endPage":"1380","costCenters":[],"links":[{"id":221736,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.32291374577194,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.30965046710372\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe47e4b0c8380cd4ec35","contributors":{"authors":[{"text":"Chadwick, W.W. Jr.","contributorId":35876,"corporation":false,"usgs":true,"family":"Chadwick","given":"W.W.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":360552,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swanson, D. A.","contributorId":34102,"corporation":false,"usgs":true,"family":"Swanson","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":360551,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Iwatsubo, E.Y.","contributorId":20753,"corporation":false,"usgs":true,"family":"Iwatsubo","given":"E.Y.","email":"","affiliations":[],"preferred":false,"id":360550,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heliker, C. C.","contributorId":70753,"corporation":false,"usgs":true,"family":"Heliker","given":"C. C.","affiliations":[],"preferred":false,"id":360553,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Leighley, T.A.","contributorId":11335,"corporation":false,"usgs":true,"family":"Leighley","given":"T.A.","affiliations":[],"preferred":false,"id":360549,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70012130,"text":"70012130 - 1983 - Seismic precursors to the Mount St. Helens eruptions in 1981 and 1982","interactions":[],"lastModifiedDate":"2025-11-25T16:01:15.916615","indexId":"70012130","displayToPublicDate":"1983-09-30T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Seismic precursors to the Mount St. Helens eruptions in 1981 and 1982","docAbstract":"Six categories of seismic events are recognized on the seismograms from stations in the vicinity of Mount St. Helens. Two types of high-frequency earthquakes occur near the volcano and under the volcano at depths of more than 4 kilometers. Medium- and low-frequency earthquakes occur at shallow depths (less than 3 kilometers) within the volcano and increase in number and size before eruptions. Temporal changes in the energy release of the low-frequency earthquakes have been used in predicting all the eruptions since October 1980. During and after eruptions, two types of low-frequency emergent surface events occur, including rockfalls and steam or gas bursts from the lava dome.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1376","issn":"00368075","usgsCitation":"Malone, S.D., Boyko, C., and Weaver, C., 1983, Seismic precursors to the Mount St. Helens eruptions in 1981 and 1982: Science, v. 221, no. 4618, p. 1376-1378, https://doi.org/10.1126/science.221.4618.1376.","productDescription":"3 p.","startPage":"1376","endPage":"1378","costCenters":[],"links":[{"id":222242,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.32291374577194,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.30965046710372\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8b36e4b08c986b31768b","contributors":{"authors":[{"text":"Malone, S. D.","contributorId":48310,"corporation":false,"usgs":true,"family":"Malone","given":"S.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":362793,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boyko, C.","contributorId":14576,"corporation":false,"usgs":true,"family":"Boyko","given":"C.","email":"","affiliations":[],"preferred":false,"id":362792,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Weaver, C.S.","contributorId":57874,"corporation":false,"usgs":true,"family":"Weaver","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":362794,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70012114,"text":"70012114 - 1983 - Eruption prediction aided by electronic tiltmeter data at Mount St. Helens","interactions":[],"lastModifiedDate":"2025-11-25T16:29:00.722592","indexId":"70012114","displayToPublicDate":"1983-09-30T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Eruption prediction aided by electronic tiltmeter data at Mount St. Helens","docAbstract":"Telemetry from electronic tiltmeters in the crater at Mount St. Helens contributed to accurate predictions of all six effusive eruptions from June 1981 to August 1982. Tilting of the crater floor began several weeks before each eruption, accelerated sharply for several days, and then abruptly changed direction a few minutes to days before extrusion began. Each episode of uplift was caused by the intrusion of magma into the lava dome from a shallow source, causing the dome to inflate and eventually rupture. Release of magma pressure and increased surface loading by magma added to the dome combined to cause subsidence just prior to extrusion.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1381","issn":"00368075","usgsCitation":"Dzurisin, D., Westphal, J., and Johnson, D., 1983, Eruption prediction aided by electronic tiltmeter data at Mount St. Helens: Science, v. 221, no. 4618, p. 1381-1383, https://doi.org/10.1126/science.221.4618.1381.","productDescription":"3 p.","startPage":"1381","endPage":"1383","costCenters":[],"links":[{"id":222052,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.32291374577194,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.30965046710372\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0a50e4b0c8380cd522d2","contributors":{"authors":[{"text":"Dzurisin, D.","contributorId":76067,"corporation":false,"usgs":true,"family":"Dzurisin","given":"D.","email":"","affiliations":[],"preferred":false,"id":362765,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Westphal, J.A.","contributorId":41072,"corporation":false,"usgs":true,"family":"Westphal","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":362763,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, Daniel J.","contributorId":71970,"corporation":false,"usgs":true,"family":"Johnson","given":"Daniel J.","affiliations":[],"preferred":false,"id":362764,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011212,"text":"70011212 - 1983 - Petrologic monitoring of 1981 and 1982 eruptive products from Mount St. Helens","interactions":[],"lastModifiedDate":"2025-11-25T16:57:31.369492","indexId":"70011212","displayToPublicDate":"1983-09-30T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Petrologic monitoring of 1981 and 1982 eruptive products from Mount St. Helens","docAbstract":"New material from the dacite lava dome of Mount St. Helens, collected soon after the start of each successive extrusion, is subjected to rapid chemical and petrologic analysis. The crystallinity of the dacite lava produced in 1981 and 1982 is 38 to 42 percent, about 10 percent higher than for products of the explosive 1980 eruptions. This increase in crystallinity accompanies a decrease in the ratio of hornblende to hornblende plus orthopyroxene, which suggests that the volatile-rich, crystal-poor material explosively erupted in 1980 came from the top of a zoned magma chamber and that a lower, volatile-poor and crystal-rich region is now being tapped. The major-element chemistry of the dacite lava has remained essentially constant (62 to 63 percent silica) since August 1980, ending a trend of decreasing silica seen in the products of the explosive eruptions of May through August 1980.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.221.4618.1385","issn":"00368075","usgsCitation":"Cashman, K.V., and Taggart, J.E., 1983, Petrologic monitoring of 1981 and 1982 eruptive products from Mount St. Helens: Science, v. 221, no. 4618, p. 1385-1387, https://doi.org/10.1126/science.221.4618.1385.","productDescription":"3 p.","startPage":"1385","endPage":"1387","costCenters":[],"links":[{"id":220755,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.32291374577194,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.13060496659935\n ],\n [\n -122.0390350130564,\n 46.30965046710372\n ],\n [\n -122.32291374577194,\n 46.30965046710372\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"221","issue":"4618","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7813e4b0c8380cd7861c","contributors":{"authors":[{"text":"Cashman, K. V.","contributorId":16831,"corporation":false,"usgs":true,"family":"Cashman","given":"K.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":360571,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taggart, J. E.","contributorId":14829,"corporation":false,"usgs":true,"family":"Taggart","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":360570,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70162187,"text":"70162187 - 1983 - Reproduction by the endangered cui-ui in the lower Truckee River","interactions":[],"lastModifiedDate":"2019-12-16T13:33:52","indexId":"70162187","displayToPublicDate":"1983-09-15T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Reproduction by the endangered cui-ui in the lower Truckee River","docAbstract":"Adult spawning behavior and emigration of larvae of the endangered cui-ui Chasmistes cujus were studied in a natural side channel of the lower Truckee River. External radio-tags placed on eight apparently did not affect spawning behavior. Cui-uis spawned in clusters of two to seven fish; usually a single female was flanked by two males. Each spawning act lasted 3–6 seconds, and individual fish spawned numerous times. The most active tagged male and female spawned at least 294 times and 114 times, respectively. Individual females broadcast eggs over an area of up to 50 m2. Males spawned over a 4–5-day period, and females over 2.5–4 days. Most spawning occurred at night in water depths ranging from 9 to 43 cm, water velocities ranging from 23 to 87 cm/second, and temperatures of 12–17 C. The preferred spawning substrate was gravel. Peak emergence and out-migration of cui-ui larvae occurred 14 days after peak spawning.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1983)112<788:RBTECI>2.0.CO;2","usgsCitation":"Scoppettone, G., Wedemeyer, G., Coleman, M., and Burge, H., 1983, Reproduction by the endangered cui-ui in the lower Truckee River: Transactions of the American Fisheries Society, v. 112, no. 6, p. 788-793, https://doi.org/10.1577/1548-8659(1983)112<788:RBTECI>2.0.CO;2.","productDescription":"6 p.","startPage":"788","endPage":"793","numberOfPages":"6","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"links":[{"id":314376,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Nevada","otherGeospatial":"Truckee River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.2838134765625,\n 38.85682013474361\n ],\n [\n -119.62600708007812,\n 38.85682013474361\n ],\n [\n -119.62600708007812,\n 39.61944148822782\n ],\n [\n -120.2838134765625,\n 39.61944148822782\n ],\n [\n -120.2838134765625,\n 38.85682013474361\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"112","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5698d4d0e4b0fbd3f7fa4c5d","contributors":{"authors":[{"text":"Scoppettone, G.G.","contributorId":22793,"corporation":false,"usgs":true,"family":"Scoppettone","given":"G.G.","email":"","affiliations":[],"preferred":false,"id":588791,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wedemeyer, Gary","contributorId":94244,"corporation":false,"usgs":true,"family":"Wedemeyer","given":"Gary","affiliations":[],"preferred":false,"id":588792,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coleman, M.","contributorId":152277,"corporation":false,"usgs":false,"family":"Coleman","given":"M.","email":"","affiliations":[],"preferred":false,"id":588793,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burge, H.","contributorId":152278,"corporation":false,"usgs":false,"family":"Burge","given":"H.","email":"","affiliations":[],"preferred":false,"id":588794,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70120434,"text":"70120434 - 1983 - Results of an adaptive environmental assessment modeling workshop concerning potential impacts of drilling muds and cuttings on the marine environment","interactions":[],"lastModifiedDate":"2014-08-14T13:06:41","indexId":"70120434","displayToPublicDate":"1983-09-01T13:06:02","publicationYear":"1983","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesNumber":"NTIS PB-83-114165","title":"Results of an adaptive environmental assessment modeling workshop concerning potential impacts of drilling muds and cuttings on the marine environment","docAbstract":"Drilling fluids or \"muds\" are essential components of modern drilling operations. They provide integrity for the well bore, a medium for removal of formation cuttings, and lubrication and cooling of the drill bit and pipe. The modeling workshop described in this report was conducted September 14-18, 1981 in Gulf Breeze, Florida to consider potential impacts of discharged drilling muds and cuttings on the marine environment. The broad goals of the workshop were synthesis of information on fate and effects, identification of general relationships between drilling fluids and the marine environment, and identification of site-specific variables likely to determine impacts of drilling muds and cuttings in various marine sites.
\nThe workshop was structured around construction of a model simulating fate and effects of discharges from a single rig into open water areas of the Gulf of Mexico, and discussion of factors that might produce different fate and effects in enclosed areas such as bays and estuaries. The simulation model was composed of four connected submodels. A Discharge/Fate submodel dealt with the discharge characteristics of the rig and the subsequent fate of discharged material. Three effects submodels then calculated biological responses at distances away from the rig for the water column, soft bottom benthos (assuming the rig was located over a soft bottom environment), and hard bottom benthos (assuming the rig was located over a hard bottom environment). The model focused on direct linkages between the discharge and various organisms rather than on how the marine ecosystem itself is interconnected.
\nBehavior of the simulation model indicated relatively localized effects of drilling muds and cuttings discharged from a single platform into open water areas. Water column fate and effects were dominated by rapid dilution. Effects from deposition of spent mud and cuttings were spatially limited with relatively rapid recovery, especially in soft bottom benthic communities which were conceptualized as being adapted to frequent storms. This behavior was generated by the set of assumptions about linkages and functional relationships used to construct the model. Areas of uncertainty included methods for extrapolating 96-hr LC50 so results to exposures of varying lengths and concentrations; recovery rates of benthic communities; responses to various depths and rates of burial; fate and effects of the plume in relationship to stratification layers; and long-term and sub-lethal effects of slightly elevated concentrations of discharged materials. Evaluation of the assumptions of the Soft Bottom Submodel suggest that the assumptions used may have been relatively liberal estimates of resiliency of these communities.
\nDiscussion of \"closed\" water bodies such as bays and estuaries indicated several reasons to expect different and more complex fate and effects behavior in these areas. These factors included different species and communities (such as aquatic macrophytes and oyster beds), more complex circulation and stratification patterns, and potentially more active resuspension processes. Much of the possible difference in behavior in these areas centers around the extent to which they are “closed” or in the relative residence times of water and sediments in these areas as they determine the long-term dispersion of discharged material. Despite the complexity and variability of these areas, a large body of knowledge (such as that concerning fate and physical effects of dredge spoil) that could be effectively employed in analysis of potential fate and physical effects in enclosed areas was identified.
","language":"English","publisher":"National Technical Information Service","publisherLocation":"Springfield, VA","usgsCitation":"Auble, G.T., Andrews, A.K., Ellison, R.A., Hamilton, D.B., Johnson, R.A., Roelle, J.E., and Marmorek, D.R., 1983, Results of an adaptive environmental assessment modeling workshop concerning potential impacts of drilling muds and cuttings on the marine environment, 30 p.","productDescription":"30 p.","numberOfPages":"30","costCenters":[],"links":[{"id":292204,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53edcd4fe4b0f61b386d2457","contributors":{"authors":[{"text":"Auble, Gregor T. 0000-0002-0843-2751 aubleg@usgs.gov","orcid":"https://orcid.org/0000-0002-0843-2751","contributorId":2187,"corporation":false,"usgs":true,"family":"Auble","given":"Gregor","email":"aubleg@usgs.gov","middleInitial":"T.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":498199,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andrews, Austin K.","contributorId":85516,"corporation":false,"usgs":true,"family":"Andrews","given":"Austin","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":498203,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ellison, Richard A.","contributorId":19087,"corporation":false,"usgs":true,"family":"Ellison","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":498201,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hamilton, David B. hamiltond@usgs.gov","contributorId":193,"corporation":false,"usgs":true,"family":"Hamilton","given":"David","email":"hamiltond@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":true,"id":498198,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, Richard A.","contributorId":81420,"corporation":false,"usgs":true,"family":"Johnson","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":498202,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Roelle, James E. roelleb@usgs.gov","contributorId":2330,"corporation":false,"usgs":true,"family":"Roelle","given":"James","email":"roelleb@usgs.gov","middleInitial":"E.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":498200,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Marmorek, David R.","contributorId":108415,"corporation":false,"usgs":true,"family":"Marmorek","given":"David","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":498204,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70207804,"text":"70207804 - 1983 - Opening of the Red Sea: Constraints from a palaeomagnetic study of the As Sarat volcanic field, south‐western Saudi Arabia","interactions":[],"lastModifiedDate":"2026-02-09T17:15:00.689351","indexId":"70207804","displayToPublicDate":"1983-09-01T11:44:45","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1804,"text":"Geophysical Journal of the Royal Astronomical Society","active":true,"publicationSubtype":{"id":10}},"title":"Opening of the Red Sea: Constraints from a palaeomagnetic study of the As Sarat volcanic field, south‐western Saudi Arabia","docAbstract":"Four stratigraphic sections through alkali basalt flows of Oligocene to Miocene age (29‐24 Ma) in the As Sarat volcanic field, south‐western Saudi Arabia, were sampled for palaeomagnetic study. After systematic alternating‐field demagnetization, 42 magnetically acceptable flows (139 samples) yield a mean direction of magnetization of =355.3°, =15.2° (α=4.3°), which defines a palaeomagnetic pole at 78.8°N, 247.8°E. Of these acceptable flows, 24 are normally, and 18 reversely, magnetized. Part of one section was apparently erupted during the early phases of a polarity reversal of the Earth's field. The mean direction derived from the 24 normally magnetized flows is significantly different (after inverting 180°) from that derived from the 18 reversed flows, supporting the hypothesis of a displaced dipole source for the Earth's field in late Oligocene to early Miocene time. A comparison of the results from As Sarat with palaeomagnetic results from upper Tertiary rocks in Africa indicates that the Red Sea has opened 12° (estimated ±8° at the 95 per cent confidence level). These results indicate that most of the counter‐clockwise rotation of Arabia relative to Africa occurred since the eruption of the As Sarat volcanics, in disagreement with proposed models for main‐stage Red Sea spreading from late Eocene to early Oligocene time. The palaeomagnetic results also indicate that the Arabian Peninsula was more equatorial in late Oligocene to early Miocene time than it is now, by an amount compatible with the opening of the Gulf of Aden
","language":"English","publisher":"Oxford Academic","usgsCitation":"Kellogg, K.S., and Reynolds, R.L., 1983, Opening of the Red Sea: Constraints from a palaeomagnetic study of the As Sarat volcanic field, south‐western Saudi Arabia: Geophysical Journal of the Royal Astronomical Society, v. 74, no. 3, p. 649-665.","productDescription":"17 p.","startPage":"649","endPage":"665","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":499681,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://academic.oup.com/gji/article/74/3/649/577855","linkFileType":{"id":5,"text":"html"}},{"id":371216,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Saudi Arabia","otherGeospatial":"As Sarat volcanic field","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 42.9345703125,\n 17.5602465032949\n ],\n [\n 45.703125,\n 17.5602465032949\n ],\n [\n 45.703125,\n 19.145168196205297\n ],\n [\n 42.9345703125,\n 19.145168196205297\n ],\n [\n 42.9345703125,\n 17.5602465032949\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"74","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Kellogg, Karl S. 0000-0002-6536-9066 kkellogg@usgs.gov","orcid":"https://orcid.org/0000-0002-6536-9066","contributorId":1206,"corporation":false,"usgs":true,"family":"Kellogg","given":"Karl","email":"kkellogg@usgs.gov","middleInitial":"S.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":779383,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reynolds, R. L. 0000-0002-4572-2942","orcid":"https://orcid.org/0000-0002-4572-2942","contributorId":79885,"corporation":false,"usgs":true,"family":"Reynolds","given":"R.","middleInitial":"L.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":779392,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70120410,"text":"70120410 - 1983 - Vegetation characteristics important to common songbirds in east Texas","interactions":[],"lastModifiedDate":"2014-08-14T11:04:22","indexId":"70120410","displayToPublicDate":"1983-09-01T10:55:32","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3783,"text":"The Wilson Bulletin","printIssn":"0043-5643","active":true,"publicationSubtype":{"id":10}},"title":"Vegetation characteristics important to common songbirds in east Texas","docAbstract":"Multivariate studies of breeding bird communities have used principal component analysis (PCA) or several-group (three or more groups) discriminant function analysis (DFA) to ordinate bird species on vegetational continua (Cody 1968, James 1971, Whitmore 1975). In community studies, high resolution of habitat requirements for individual species is not always possible with either PCA or several-group DFA. When habitat characteristics of several species are examined with a DFA the resultant axes optimally discriminate among all species simultaneously. Hence, the characteristics assigned to a particular species reflect in part the presence of other species in the analyses. A better resolution of each species' habitat requirements may be obtained from a two-group DFA, wherein habitats selected by a species are discriminated from all other available habitats.
\nAnalyses using two-group DFAs to compare habitat used by a species with habitat unused by the same species have the potential to provide an optimal frame of reference from which to examine habitat variables (Martinka 1972, Conner and Adkisson 1976, Whitmore 1981). Mathematically (DFA) it is possible to maximally separate two groups of multivariate observations with a single axis (Harner and whitmore 1977). A line drawn in three or n-dimensional space can easily be positioned to intersect two multivariate means (centroids). If three or more centroids for species are analyzed simultaneously, a single line can no longer intersect all centroids unless a perfectly linear relationship exists for the species being examined. The probability of such an occurrence is extremely low. Thus, a high degree of resolution can be realized when a two-group DFA is used to determine habitat parameters important to individual species. We have used two-group DFA to identify vegetation variable important to 12 common species of songbirds in East Texas.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wilson Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wilson Ornithological Society","publisherLocation":"Lawrence, KS","usgsCitation":"Conner, R.N., Dickson, J., Locke, B.A., and Segelquist, C.A., 1983, Vegetation characteristics important to common songbirds in east Texas: The Wilson Bulletin, v. 95, no. 3, p. 349-361.","productDescription":"13 p.","startPage":"349","endPage":"361","numberOfPages":"13","costCenters":[],"links":[{"id":292180,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -106.65,25.84 ], [ -106.65,36.5 ], [ -93.51,36.5 ], [ -93.51,25.84 ], [ -106.65,25.84 ] ] ] } } ] }","volume":"95","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53edcd57e4b0f61b386d24cb","contributors":{"authors":[{"text":"Conner, Richard N.","contributorId":27796,"corporation":false,"usgs":true,"family":"Conner","given":"Richard","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":498167,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dickson, James G.","contributorId":31317,"corporation":false,"usgs":true,"family":"Dickson","given":"James G.","affiliations":[],"preferred":false,"id":498168,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Locke, Brian A.","contributorId":23073,"corporation":false,"usgs":true,"family":"Locke","given":"Brian","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":498165,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Segelquist, Charles A.","contributorId":27368,"corporation":false,"usgs":true,"family":"Segelquist","given":"Charles","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":498166,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70202820,"text":"70202820 - 1983 - The effects of meiofauna on settling macrofauna: meiofauna may structure macrofaunal communities","interactions":[],"lastModifiedDate":"2019-06-11T13:50:59","indexId":"70202820","displayToPublicDate":"1983-09-01T10:07:25","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2932,"text":"Oecologia","active":true,"publicationSubtype":{"id":10}},"title":"The effects of meiofauna on settling macrofauna: meiofauna may structure macrofaunal communities","docAbstract":"When macrofaunal larvae and juveniles recruit into the benthos, they are in the same size category as the meiofauna. These small size classes have been consistently ignored in macrofaunal studies despite the increasingly accepted idea that communities are structured not only by interactions between adults, but also by interactions which occurred when the animals were young and in the meiofaunal size category. I have tested the effects of turbellarians and other meiofauna on settling macrofaunal larvae and young juveniles in a one-week field experiment. Increased densities of both turbellarians and other meiofauna (tested separately) significantly reduced densities of juvenile spionids and deposit feeders. Syllid abundances increased in high density turbellarian treatments. Nereid polychaete, other predatory polychaete, and bivalve densities showed no significant differences among treatments. By both altering densities and acting selectively on various groups of macrofaunal juveniles, meiofauna may significantly affect the structure of macrofaunal communities.
","language":"English","publisher":"Springer-Verlag","doi":"10.1007/BF00378833","usgsCitation":"Watzin, M.C., 1983, The effects of meiofauna on settling macrofauna: meiofauna may structure macrofaunal communities: Oecologia, v. 59, no. 2-3, p. 163-166, https://doi.org/10.1007/BF00378833.","productDescription":"4 p.","startPage":"163","endPage":"166","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":362368,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"59","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Watzin, Mary C.","contributorId":214534,"corporation":false,"usgs":false,"family":"Watzin","given":"Mary","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":760143,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011414,"text":"70011414 - 1983 - Bathyal ostracodes from the Florida-Hatteras slope, the Straits of Florida, and the Blake Plateau","interactions":[],"lastModifiedDate":"2024-10-03T15:23:30.001699","indexId":"70011414","displayToPublicDate":"1983-09-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2673,"text":"Marine Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Bathyal ostracodes from the Florida-Hatteras slope, the Straits of Florida, and the Blake Plateau","docAbstract":"Epibathyal ostracodes from the Florida-Hatteras slope, the Blake Plateau and the Straits of Florida were studied to determine the relationship of numerous genera and species to bottom-water environmental conditions such as dissolved oxygen and bottom-water temperatures. From a total of 100 samples, 44 samples evenly distributed between 200 and 1100 m water depth and having an average of 325 specimens were examined in detail.
Using occurrence data from the adjacent continental shelf, carapace preservation, Rose Bengal staining and population data, indigenous death assemblages were distinguished from transported or reworked fossil specimens. The percent of transported specimens varied as follows: Blake Plateau less than 1%; Straits of Florida 10–60%; Florida-Hatteras slope 1–15%. Indigenous death assemblages contained between 10 and 61 species per sample, averaging 33.3 species. Krithe, Argilloecia and Pseudocythere occur in greater than 90% of the samples and usually constitute 10 to 30% of each. Trachyleberidea, Bairdoppilata, Saida, Paranesidea, Ambocythere, Bythocypris, Cytherella, Bradleya, Henryhowella, and Polycopidae occur in 45 to 80% of the samples in varying percentages.
The upper depth limits of 39 taxa occur at or just below the thermocline suggesting a relationship to temperature. Australoecia, Quasibuntonia, Cytheropteron, Ruggieriella, Saida, Ambocythere, Trachyleberidea, Macrocypris, Krithe, “Thalassocythere”, and Cytherella are most common or restricted to the O2 minimum zone. Conversely, Anchistrocheles, Bradleya, Henryhowella, and Rockallia are most common below 750 m in well oxygenated water with temperatures below 8°C.
The results show that: (1) ostracodes display a narrow depth zonation controlled by dissolved oxygen and water temperature; (2) species diversity is very high for a bathyal zone; (3) ostracodes can be used to identify the source of sediment that has been transported downslope; and (4) some taxa are useful in recognizing low oxygenated water in Cenozoic deposits.
A high‐performance liquid chromatography (HPLC) procedure that is rapid, specific, and sensitive (limit of detection <0.005 mg/liter) was developed for monitoring application and degradation rates of rotenone. For analysis, a water sample is buffered to pH 5 and injected through a Sep Pak(R) C18 disposable cartridge. The cartridge adsorbs and retains the rotenone which then can be eluted quantitatively from the cartridge with a small volume of methanol. This step effectively concentrates the sample and provides sample cleanup. The methanol extract is analyzed directly by HPLC on an MCH 10 reverse‐phase column; methanol: Water (75:25, volume : Volume) is the mobile phase and flow rate is 1.5 ml/minute. The rotenone is detected by ultraviolet spectrophotometry at a wavelength of 295 nm.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1983)112<725:RMFMRI>2.0.CO;2","usgsCitation":"Dawson, V.K., Harman, P., Schultz, D., and Allen, J.L., 1983, Rapid method for measuring rotenone in water at piscicidal concentrations: Transactions of the American Fisheries Society, v. 112, no. 5, p. 725-727, https://doi.org/10.1577/1548-8659(1983)112<725:RMFMRI>2.0.CO;2.","productDescription":"3 p.","startPage":"725","endPage":"727","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":129117,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62c1d7","contributors":{"authors":[{"text":"Dawson, V. K.","contributorId":48900,"corporation":false,"usgs":true,"family":"Dawson","given":"V.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":313109,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harman, P.D.","contributorId":56595,"corporation":false,"usgs":true,"family":"Harman","given":"P.D.","email":"","affiliations":[],"preferred":false,"id":313111,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schultz, D.P.","contributorId":106054,"corporation":false,"usgs":true,"family":"Schultz","given":"D.P.","email":"","affiliations":[],"preferred":false,"id":313112,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Allen, J. L.","contributorId":49295,"corporation":false,"usgs":true,"family":"Allen","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":313110,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1013932,"text":"1013932 - 1983 - Feminization of channel catfish by oral administration of steroid sex hormones","interactions":[],"lastModifiedDate":"2026-04-10T15:42:52.599207","indexId":"1013932","displayToPublicDate":"1983-09-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Feminization of channel catfish by oral administration of steroid sex hormones","docAbstract":"Oral administration of 17‐β‐estradiol or 17‐α‐ethynyltestosterone to sexually undifferentiated channel catfish Ictaturus punctatus during the first 21 days after yolk‐sac absorption resulted in the production of 100% females. The androgen was effective at doses of 6 to 600 μg/g of feed, but not at 0.6 μg/g.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1983)112<670:FOCCBO>2.0.CO;2","usgsCitation":"Goudie, C.A., Redner, B., Simco, B., and Davis, K.B., 1983, Feminization of channel catfish by oral administration of steroid sex hormones: Transactions of the American Fisheries Society, v. 112, no. 5, p. 670-672, https://doi.org/10.1577/1548-8659(1983)112<670:FOCCBO>2.0.CO;2.","productDescription":"3 p.","startPage":"670","endPage":"672","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":130864,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fce4b07f02db5f5c75","contributors":{"authors":[{"text":"Goudie, C. A.","contributorId":97851,"corporation":false,"usgs":false,"family":"Goudie","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":319463,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Redner, B.D.","contributorId":54554,"corporation":false,"usgs":true,"family":"Redner","given":"B.D.","email":"","affiliations":[],"preferred":false,"id":319461,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Simco, B.A.","contributorId":101216,"corporation":false,"usgs":true,"family":"Simco","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":319464,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Davis, K. B.","contributorId":83869,"corporation":false,"usgs":true,"family":"Davis","given":"K.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":319462,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70204617,"text":"70204617 - 1983 - Seedling establishment on a landslide site","interactions":[],"lastModifiedDate":"2019-08-06T12:22:26","indexId":"70204617","displayToPublicDate":"1983-08-06T12:02:24","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1195,"text":"Castanea","active":true,"publicationSubtype":{"id":10}},"title":"Seedling establishment on a landslide site","docAbstract":"Two landslide scars (slide tracks) were plot sampled one and two years after landsliding to determine plant species involved in ecesis. The study site is located in a blockfield cove on Massanutten Mountain, northern Virginia. Old growth forest, adjacent to the slide tracks, is composed primarily of hemlock (Tsuga canadensis) and sweet birch (Betula lenta). These species are the first and foremost colonizers on the slide tracks. Dendrochronological analysis shows that landsliding is frequent at the study site and this disturbance may impart non-equilibrium conditions on the forest. Seed bed characteristics, light availability, and mode of dispersal may be important factors in plant ecesis on slide tracks
","language":"English","publisher":"Southern Appalachian Botanical Society","usgsCitation":"Hupp, C.R., 1983, Seedling establishment on a landslide site: Castanea, v. 48, no. 2, p. 89-98.","productDescription":"10 p.","startPage":"89","endPage":"98","costCenters":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"links":[{"id":366309,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":366302,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://www.jstor.org/stable/4033072"}],"country":"United States","state":"Virginia","otherGeospatial":" Massanutten Mountain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -78.79394531249999,\n 38.35027253825765\n ],\n [\n -78.5302734375,\n 38.35027253825765\n ],\n [\n -78.5302734375,\n 38.62545397209084\n ],\n [\n -78.79394531249999,\n 38.62545397209084\n ],\n [\n -78.79394531249999,\n 38.35027253825765\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"48","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hupp, Cliff R. 0000-0003-1853-9197 crhupp@usgs.gov","orcid":"https://orcid.org/0000-0003-1853-9197","contributorId":2344,"corporation":false,"usgs":true,"family":"Hupp","given":"Cliff","email":"crhupp@usgs.gov","middleInitial":"R.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":767786,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70120437,"text":"70120437 - 1983 - Density estimation of small-mammal populations using a trapping web and distance sampling methods","interactions":[],"lastModifiedDate":"2014-08-14T13:22:27","indexId":"70120437","displayToPublicDate":"1983-08-01T13:13:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Density estimation of small-mammal populations using a trapping web and distance sampling methods","docAbstract":"Distance sampling methodology is adapted to enable animal density (number per unit of area) to be estimated from capture-recapture and removal data. A trapping web design provides the link between capture data and distance sampling theory. The estimator of density is D = Mt+1f(0), where Mt+1 is the number of individuals captured and f(0) is computed from the Mt+1 distances from the web center to the traps in which those individuals were first captured. It is possible to check qualitatively the critical assumption on which the web design and the estimator are based. This is a conceptual paper outlining a new methodology, not a definitive investigation of the best specific way to implement this method. Several alternative sampling and analysis methods are possible within the general framework of distance sampling theory; a few alternatives are discussed and an example is given.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Ecological Society of America","publisherLocation":"Brooklyn, NY","doi":"10.2307/1937188","usgsCitation":"Anderson, D.R., Burnham, K.P., White, G.C., and Otis, D.L., 1983, Density estimation of small-mammal populations using a trapping web and distance sampling methods: Ecology, v. 64, no. 4, p. 674-680, https://doi.org/10.2307/1937188.","productDescription":"7 p.","startPage":"674","endPage":"680","numberOfPages":"7","costCenters":[],"links":[{"id":292209,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":292206,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2307/1937188"}],"volume":"64","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53edcd45e4b0f61b386d23b4","contributors":{"authors":[{"text":"Anderson, David R.","contributorId":92722,"corporation":false,"usgs":true,"family":"Anderson","given":"David","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":498211,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burnham, Kenneth P.","contributorId":95025,"corporation":false,"usgs":true,"family":"Burnham","given":"Kenneth","email":"","middleInitial":"P.","affiliations":[{"id":189,"text":"Colorado Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"preferred":false,"id":498212,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"White, Gary C.","contributorId":66831,"corporation":false,"usgs":false,"family":"White","given":"Gary","email":"","middleInitial":"C.","affiliations":[{"id":6621,"text":"Colorado State University","active":true,"usgs":false}],"preferred":false,"id":498209,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Otis, David L.","contributorId":78455,"corporation":false,"usgs":true,"family":"Otis","given":"David","email":"","middleInitial":"L.","affiliations":[{"id":350,"text":"Iowa Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"preferred":false,"id":498210,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}