{"pageNumber":"2889","pageRowStart":"72200","pageSize":"25","recordCount":184617,"records":[{"id":70025822,"text":"70025822 - 2003 - Difficulties in relating Cd concentrations in the predatory insect Chaoborus to those of its prey in nature","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025822","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":"Difficulties in relating Cd concentrations in the predatory insect Chaoborus to those of its prey in nature","docAbstract":"Because Chaoborus larvae take up most of their cadmium (Cd) from food, we tested the hypothesis that Cd concentrations in this insect are directly related to those in their planktonic prey. We measured Cd in Chaoborus and in Zooplankton collected from 24 eastern Canadian lakes varying widely in their Cd concentrations. Cd concentrations in the predator were not correlated with those in bulk zooplankton, whether separated into size fractions liable to be eaten by Chaoborus or not. In highly acidic lakes, Cd concentrations in Chaoborus did not respond to increases in zooplankton Cd because of either competition between H and Cd ions at Cd absorption sites in the predator's gut or differences in prey community composition between highly acidic and circumneutral lakes. Relationships between Cd in Chaoborus and in its potential prey were stronger when we used Cd concentrations for specific crustacean taxa in a mechanistic model. We conclude that predictive relationships between metal concentrations in predators and their prey are likely to be strongest if the subset of prey consumed by the predator has been characterized and if this information is used in a bioaccumulation model.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/f03-068","issn":"0706652X","usgsCitation":"Croteau, M., Hare, L., and Tessier, A., 2003, Difficulties in relating Cd concentrations in the predatory insect Chaoborus to those of its prey in nature: Canadian Journal of Fisheries and Aquatic Sciences, v. 60, no. 7, p. 800-808, https://doi.org/10.1139/f03-068.","startPage":"800","endPage":"808","numberOfPages":"9","costCenters":[],"links":[{"id":208706,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/f03-068"},{"id":234643,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a010ce4b0c8380cd4fa89","contributors":{"authors":[{"text":"Croteau, M.-N.","contributorId":37511,"corporation":false,"usgs":true,"family":"Croteau","given":"M.-N.","email":"","affiliations":[],"preferred":false,"id":406702,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hare, L.","contributorId":30414,"corporation":false,"usgs":true,"family":"Hare","given":"L.","email":"","affiliations":[],"preferred":false,"id":406701,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tessier, A.","contributorId":88920,"corporation":false,"usgs":true,"family":"Tessier","given":"A.","email":"","affiliations":[],"preferred":false,"id":406703,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025821,"text":"70025821 - 2003 - Shell microstructure of the late Carboniferous rostroconch mollusc Apotocardium lanterna (Branson, 1965)","interactions":[],"lastModifiedDate":"2021-08-31T23:08:34.272554","indexId":"70025821","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2412,"text":"Journal of Paleontology","active":true,"publicationSubtype":{"id":10}},"title":"Shell microstructure of the late Carboniferous rostroconch mollusc Apotocardium lanterna (Branson, 1965)","docAbstract":"<p><span>The Late Carboniferous bransoniid conocardioidean&nbsp;</span><span class=\"genus-species\">Apotocardium lanterna</span><span>&nbsp;(</span>Branson, 1965<span>) had an entirely aragonitic shell with a finely prismatic outer shell layer, a predominantly crossed lamellar to complex crossed lamellar middle shell layer, and an “inner” shell layer of finely textured porcelaneous and/or matted structure. This “inner” layer is probably homologous with the inner part of the middle shell layer and the inner layer&nbsp;</span><span class=\"genus-species\">sensu stricto</span><span>&nbsp;of bivalved molluscs. Shell morphological and microstructural convergences between conocardioids and living heart cockles suggest that at least some conocardioids may have farmed algal endosymbionts in their posterior mantle margins. This symbiosis may have helped conocardioids compete with the biomechanically more efficient bivalves during the latter part of the Paleozoic.</span></p>","language":"English","publisher":"BioOne","doi":"10.1666/0022-3360(2003)077<0655:SMOTLC>2.0.CO;2","issn":"00223360","usgsCitation":"Rogalla, N., Carter, J., and Pojeta, J., 2003, Shell microstructure of the late Carboniferous rostroconch mollusc Apotocardium lanterna (Branson, 1965): Journal of Paleontology, v. 77, no. 4, p. 655-673, https://doi.org/10.1666/0022-3360(2003)077<0655:SMOTLC>2.0.CO;2.","productDescription":"19 p.","startPage":"655","endPage":"673","costCenters":[],"links":[{"id":388708,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"77","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8e69e4b08c986b31890e","contributors":{"authors":[{"text":"Rogalla, N.S.","contributorId":68513,"corporation":false,"usgs":true,"family":"Rogalla","given":"N.S.","email":"","affiliations":[],"preferred":false,"id":406699,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carter, J.G.","contributorId":85376,"corporation":false,"usgs":true,"family":"Carter","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":406700,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pojeta, J. Jr.","contributorId":55150,"corporation":false,"usgs":true,"family":"Pojeta","given":"J.","suffix":"Jr.","affiliations":[],"preferred":false,"id":406698,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025820,"text":"70025820 - 2003 - Mercury effects on predator avoidance behavior of a forage fish, golden shiner (Notemigonus crysoleucas)","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025820","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Mercury effects on predator avoidance behavior of a forage fish, golden shiner (Notemigonus crysoleucas)","docAbstract":"Mercury contamination of fish is widespread in North America and has resulted in the establishment of fish consumption advisories to protect human health, However, the effects of mercury exposure to fish have seldom been investigated. We examined the effects of dietary mercury exposure at environmental levels in a common forage species, golden shiner (Notemigonus crysoleucas). Fish were fed either an unaltered diet (12 ng/g wet wt methylmercury [MeHg] as Hg), a low-Hg diet (455 ng/g Hg), or a high-Hg diet (959 ng/g Hg). After 90 d mean fish whole-body total Hg concentrations were 41, 230, and 518 ng/g wet wt, respectively, which were within the range of concentrations found in this species in northern U.S. lakes. There were no mortalities or differences in growth rate among groups. Groups of fish from each treatment were exposed to a model avian predator and their behavioral response videotaped for analysis. Brain acetylcholinesterase (AChE) activity was determined in fish after behavioral testing. Fish fed the high-Hg diet had significantly greater shoal vertical dispersal following predator exposure, took longer to return to pre-exposure activity level, and had greater shoal area after return to pre-exposure activity than did the other treatments, all of which would increase vulnerability of the fish to predation. There were no differences in brain AChE among treatments. We conclude that mercury exposure at levels currently occurring in northern United States lakes alters fish predator-avoidance behavior in a manner that may increase vulnerability to predation. This finding has significant implications for food chain transfer of Hg and Hg exposure of fish predators.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1897/1551-5028(2003)22<1556:MEOPAB>2.0.CO;2","issn":"07307268","usgsCitation":"Webber, H., and Haines, T., 2003, Mercury effects on predator avoidance behavior of a forage fish, golden shiner (Notemigonus crysoleucas): Environmental Toxicology and Chemistry, v. 22, no. 7, p. 1556-1561, https://doi.org/10.1897/1551-5028(2003)22<1556:MEOPAB>2.0.CO;2.","startPage":"1556","endPage":"1561","numberOfPages":"6","costCenters":[],"links":[{"id":208705,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/1551-5028(2003)22<1556:MEOPAB>2.0.CO;2"},{"id":234641,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5402e4b0c8380cd6ce60","contributors":{"authors":[{"text":"Webber, H.M.","contributorId":49962,"corporation":false,"usgs":true,"family":"Webber","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":406696,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haines, T.A.","contributorId":83062,"corporation":false,"usgs":true,"family":"Haines","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":406697,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025819,"text":"70025819 - 2003 - Characterization of microbially Fe(III)-reduced nontronite: Environmental cell-transmission electron microscopy study","interactions":[],"lastModifiedDate":"2018-01-27T18:28:12","indexId":"70025819","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1245,"text":"Clays and Clay Minerals","onlineIssn":"1552-8367","printIssn":"0009-8604","active":true,"publicationSubtype":{"id":10}},"title":"Characterization of microbially Fe(III)-reduced nontronite: Environmental cell-transmission electron microscopy study","docAbstract":"<p>Microstructural changes induced by the microbial reduction of Fe(III) in nontronite by <i>Shewanella oneidensis</i> were studied using environmental cell (EC)-transmission electron microscopy (TEM), conventional TEM, and X-ray powder diffraction (XRD). Direct observations of clays by EC-TEM in their hydrated state allowed for the first time an accurate and unambiguous TEM measurement of basal layer spacings and the contraction of layer spacing caused by microbial effects, most likely those of Fe(III) reduction. Non-reduced and Fe(III)-reduced nontronite, observed by EC-TEM, exhibited fringes with mean <i>d</i>001 spacings of 1.50 nm (standard deviation, σ = 0.08 nm) and 1.26 nm (σ = 0.10 nm), respectively. In comparison, the same samples embedded with Nanoplast resin, sectioned by microtome, and observed using conventional TEM, displayed layer spacings of 1.0–1.1 nm (non-reduced) and 1.0 nm (reduced). The results from Nanoplast-embedded samples are typical of conventional TEM studies, which have measured nearly identical layer spacings regardless of Fe oxidation state. Following Fe(III) reduction, both EC- and conventional TEM showed an increase in the order of nontronite selected area electron diffraction patterns while the images exhibited fewer wavy fringes and fewer layer terminations. An increase in stacking order in reduced nontronite was also suggested by XRD measurements. In particular, the ratio of the valley to peak intensity (<i>v/p</i>) of the 1.7 nm basal 001 peak of ethylene glycolated nontronite was measured at 0.65 (non-reduced) and 0.85 (microbially reduced).</p>","language":"English","publisher":"The Clay Minerals Society","doi":"10.1346/CCMN.2003.0510403","usgsCitation":"Kim, J., Furukawa, Y., Daulton, T.L., Lavoie, D.L., and Newell, S.W., 2003, Characterization of microbially Fe(III)-reduced nontronite: Environmental cell-transmission electron microscopy study: Clays and Clay Minerals, v. 51, no. 4, p. 382-389, https://doi.org/10.1346/CCMN.2003.0510403.","productDescription":"8 p.","startPage":"382","endPage":"389","costCenters":[],"links":[{"id":234606,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"4","noUsgsAuthors":false,"publicationDate":"2024-01-01","publicationStatus":"PW","scienceBaseUri":"5059f4d0e4b0c8380cd4bf35","contributors":{"authors":[{"text":"Kim, Jin-wook","contributorId":61921,"corporation":false,"usgs":false,"family":"Kim","given":"Jin-wook","email":"","affiliations":[],"preferred":false,"id":406695,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Furukawa, Yoko","contributorId":74178,"corporation":false,"usgs":false,"family":"Furukawa","given":"Yoko","email":"","affiliations":[],"preferred":false,"id":406693,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Daulton, Tyrone L.","contributorId":54775,"corporation":false,"usgs":false,"family":"Daulton","given":"Tyrone","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":406691,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lavoie, Dawn L. dlavoie@usgs.gov","contributorId":3006,"corporation":false,"usgs":true,"family":"Lavoie","given":"Dawn","email":"dlavoie@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":406694,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Newell, Steven W.","contributorId":67266,"corporation":false,"usgs":false,"family":"Newell","given":"Steven","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":406692,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70025818,"text":"70025818 - 2003 - Utility of high-altitude infrared spectral data in mineral exploration: Application to Northern Patagonia Mountains, Arizona","interactions":[],"lastModifiedDate":"2021-07-27T18:20:55.676332","indexId":"70025818","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":"Utility of high-altitude infrared spectral data in mineral exploration: Application to Northern Patagonia Mountains, Arizona","docAbstract":"<p><span>Synoptic views of hydrothermal alteration assemblages are of considerable&nbsp;</span>utility<span>&nbsp;</span>in<span>&nbsp;regional-scale minerals&nbsp;</span>exploration<span>. Recent advances&nbsp;</span>in<span>&nbsp;</span>data<span>&nbsp;acquisition and analysis technologies have greatly enhanced the usefulness of remotely sensed imaging spectroscopy for reliable alteration&nbsp;</span>mineral<span>&nbsp;assemblages mapping. Using NASA's Airborne Visible&nbsp;</span>Infrared<span>&nbsp;Imaging Spectrometer (AVIRIS) sensor, this study mapped large areas of advanced argillic and phyllic-argillic alteration assemblages&nbsp;</span>in<span>&nbsp;the southeastern Santa Rita and&nbsp;</span>northern<span>&nbsp;</span>Patagonia<span>&nbsp;</span>mountains<span>,&nbsp;</span>Arizona<span>. Two concealed porphyry copper deposits have been identified during past&nbsp;</span>exploration<span>, the Red&nbsp;</span>Mountain<span>&nbsp;and Sunnyside deposits, and related published hydrothermal alteration zoning studies allow the comparison of the results obtained from AVIRIS&nbsp;</span>data<span>&nbsp;to the more traditional field mapping approaches. The AVIRIS mapping compares favorably with field-based studies. An analysis of iron-bearing oxide minerals above a concealed supergene chalcocite deposit at Red&nbsp;</span>Mountain<span>&nbsp;also indicates that remotely sensed&nbsp;</span>data<span>&nbsp;can be of value&nbsp;</span>in<span>&nbsp;the interpretation of leached caps above porphyry copper deposits.&nbsp;</span>In<span>&nbsp;conjunction with other types of geophysical&nbsp;</span>data<span>, AVIRIS&nbsp;</span>mineral<span>&nbsp;maps can be used to discriminate different&nbsp;</span>exploration<span>&nbsp;targets within a region.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.98.5.1003","issn":"03610128","usgsCitation":"Berger, B.R., King, T.V., Morath, L., and Phillips, J., 2003, Utility of high-altitude infrared spectral data in mineral exploration: Application to Northern Patagonia Mountains, Arizona: Economic Geology, v. 98, no. 5, p. 1003-1018, https://doi.org/10.2113/gsecongeo.98.5.1003.","productDescription":"16 p.","startPage":"1003","endPage":"1018","costCenters":[],"links":[{"id":387486,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"98","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc0cee4b08c986b32a324","contributors":{"authors":[{"text":"Berger, B. R.","contributorId":77914,"corporation":false,"usgs":true,"family":"Berger","given":"B.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":406690,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"King, T. V. V.","contributorId":6192,"corporation":false,"usgs":true,"family":"King","given":"T.","email":"","middleInitial":"V. V.","affiliations":[],"preferred":false,"id":406687,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morath, L.C.","contributorId":62094,"corporation":false,"usgs":true,"family":"Morath","given":"L.C.","affiliations":[],"preferred":false,"id":406689,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Phillips, J. D. 0000-0002-6459-2821","orcid":"https://orcid.org/0000-0002-6459-2821","contributorId":22366,"corporation":false,"usgs":true,"family":"Phillips","given":"J. D.","affiliations":[],"preferred":false,"id":406688,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70025816,"text":"70025816 - 2003 - Latitudinal comparisons of walleye growth in North America and factors influencing growth of walleyes in Kansas reservoirs","interactions":[],"lastModifiedDate":"2012-03-12T17:20:24","indexId":"70025816","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":"Latitudinal comparisons of walleye growth in North America and factors influencing growth of walleyes in Kansas reservoirs","docAbstract":"We compared the growth of walleyes Stizostedion vitreum in Kansas to that of other populations throughout North America and determined the effects of the abundance of gizzard shad Dorosoma cepedianum and temperature on the growth of walleyes in Kansas reservoirs. Age was estimated from scales and otoliths collected from walleyes (N = 2,072) sampled with gill nets from eight Kansas reservoirs during fall in 1991-1999. Age-0 gizzard shad abundance was indexed based on summer seining information, and temperature data were obtained from the National Oceanic and Atmospheric Administration. Parameter estimates of von Bertalanffy growth models indicated that the growth of walleyes in Kansas was more similar to that of southern latitude populations (e.g., Mississippi and Texas) than to that of northern (e.g., Manitoba, Minnesota and South Dakota) or middle latitude (e.g., Colorado and Iowa) populations. Northern and middle latitude populations had lower mean back-calculated lengths at age 1, lower growth coefficients, and greater longevity than southern and Kansas populations. A relative growth index (RGI; [Lt/Ls ] ?? 100, where Lt is the observed length at age and Ls is the age-specific standard length derived from a pooled von Bertalanffy growth model) and standardized percentile values (percentile values of mean back-calculated lengths at age) indicated that the growth of walleyes in Kansas was above average compared with that of other populations in North America. The annual growth increments of Kansas walleyes were more variable among years than among reservoirs. The growth increments of age-0 and age-1 walleyes were positively related to the catch rates of gizzard shad smaller than 80 mm, whereas the growth of age-2 and age-3 walleyes was inversely related to mean summer air temperature. Our results provide a framework for comparing North American walleye populations, and our proposed RGI provides a simple, easily interpreted index of growth.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M02-050","issn":"02755947","usgsCitation":"Quist, M., Guy, C., Schultz, R., and Stephen, J., 2003, Latitudinal comparisons of walleye growth in North America and factors influencing growth of walleyes in Kansas reservoirs: North American Journal of Fisheries Management, v. 23, no. 3, p. 677-692, https://doi.org/10.1577/M02-050.","startPage":"677","endPage":"692","numberOfPages":"16","costCenters":[],"links":[{"id":234572,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208672,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M02-050"}],"volume":"23","issue":"3","noUsgsAuthors":false,"publicationDate":"2003-08-01","publicationStatus":"PW","scienceBaseUri":"505a4582e4b0c8380cd6739c","contributors":{"authors":[{"text":"Quist, M.C. 0000-0001-8268-1839","orcid":"https://orcid.org/0000-0001-8268-1839","contributorId":62805,"corporation":false,"usgs":true,"family":"Quist","given":"M.C.","affiliations":[],"preferred":false,"id":406681,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Guy, C.S.","contributorId":59160,"corporation":false,"usgs":true,"family":"Guy","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":406680,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schultz, R.D.","contributorId":66889,"corporation":false,"usgs":true,"family":"Schultz","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":406682,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stephen, J.L.","contributorId":84126,"corporation":false,"usgs":true,"family":"Stephen","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":406683,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70025815,"text":"70025815 - 2003 - Measurement of <i>in vitro</i> leucocyte mitogenesis in fish: ELISA based detection of the thymidine analogue 5'-bromo-2'-deoxyuridine","interactions":[],"lastModifiedDate":"2015-05-07T11:54:11","indexId":"70025815","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1653,"text":"Fish and Shellfish Immunology","active":true,"publicationSubtype":{"id":10}},"title":"Measurement of <i>in vitro</i> leucocyte mitogenesis in fish: ELISA based detection of the thymidine analogue 5'-bromo-2'-deoxyuridine","docAbstract":"<p><span>In this study we present a method for the measurement of&nbsp;</span><i>in vitro</i><span>&nbsp;mitogenesis in fish leucocytes that is based on the incorporation of the thymidine analogue 5&prime;-bromo-2&prime;-deoxyuridine (BrdU) into the DNA of replicating cells, followed by ELISA-based detection. This technique, adapted from methods developed for mammalian cells, operates on a similar biological principle to&nbsp;</span><sup>3</sup><span>H-thymidine incorporation, but circumvents the logistical and safety issues inherent with the radioactive label. Because it directly measures DNA proliferation, the assay has advantages over other colorimetric methods that may be strongly influenced by leucocyte metabolic status. Using BrdU incorporation followed by ELISA, we evaluate the responsiveness of rainbow trout (</span><i>Oncorhynchus mykiss</i><span>&nbsp;[Walbaum]) leucocytes to the mammalian T-cell mitogen Concanavalin A (Con A) as well as the differential response of white perch (</span><i>Morone americana</i><span>&nbsp;[Gmelin]) leucocytes to Con A and pokeweed mitogen. Specific considerations intrinsic to the assay system are discussed, including the implications of utilising enzyme-based detection.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1006/fsim.2002.0436","issn":"10504648","usgsCitation":"Gauthier, D.T., Cartwright, D.D., Densmore, C.L., Blazer, V., and Ottinger, C.A., 2003, Measurement of <i>in vitro</i> leucocyte mitogenesis in fish: ELISA based detection of the thymidine analogue 5'-bromo-2'-deoxyuridine: Fish and Shellfish Immunology, v. 14, no. 4, p. 279-288, https://doi.org/10.1006/fsim.2002.0436.","productDescription":"10 p.","startPage":"279","endPage":"288","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":234571,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208671,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1006/fsim.2002.0436"}],"volume":"14","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a530be4b0c8380cd6c840","contributors":{"authors":[{"text":"Gauthier, David T.","contributorId":42762,"corporation":false,"usgs":true,"family":"Gauthier","given":"David","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":406678,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cartwright, Deborah D.","contributorId":28202,"corporation":false,"usgs":true,"family":"Cartwright","given":"Deborah","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":406677,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Densmore, Christine L. 0000-0001-6440-0781 cdensmore@usgs.gov","orcid":"https://orcid.org/0000-0001-6440-0781","contributorId":4560,"corporation":false,"usgs":true,"family":"Densmore","given":"Christine","email":"cdensmore@usgs.gov","middleInitial":"L.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":406676,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Blazer, Vicki 0000-0001-6647-9614 vblazer@usgs.gov","orcid":"https://orcid.org/0000-0001-6647-9614","contributorId":792,"corporation":false,"usgs":true,"family":"Blazer","given":"Vicki","email":"vblazer@usgs.gov","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":406679,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ottinger, Christopher A. 0000-0003-2551-1985 cottinger@usgs.gov","orcid":"https://orcid.org/0000-0003-2551-1985","contributorId":2559,"corporation":false,"usgs":true,"family":"Ottinger","given":"Christopher","email":"cottinger@usgs.gov","middleInitial":"A.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":406675,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70025814,"text":"70025814 - 2003 - Effects of disturbance on contribution of energy sources to growth of juvenile chinook salmon (Oncorhynchus tshawytscha) in boreal streams","interactions":[],"lastModifiedDate":"2016-04-28T15:49:16","indexId":"70025814","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":"Effects of disturbance on contribution of energy sources to growth of juvenile chinook salmon (Oncorhynchus tshawytscha) in boreal streams","docAbstract":"<p>We used stable isotopes of carbon in a growth-dependent tissue-turnover model to quantify the relative contribution of autochthonous and terrestrial energy sources to juvenile chinook salmon (Oncorhynchus tshawytscha) in five small boreal streams tributary to the upper Yukon River. We used a tissue-turnover model because fish did not grow enough to come into isotopic equilibrium with their diet. In two streams, autochthonous energy sources contributed 23 and 41% to the growth of juvenile salmon. In the other three, fish growth was largely due to terrestrial (i.e., allochthonous) energy sources. This low contribution of autochthonous energy appeared to be related to stream-specific disturbances: a recent forest fire impacted two of the streams and the third was affected by a large midsummer spate during the study. These disturbances reduced the relative abundance of herbivorous macroinvertebrates, the contribution of autochthonous material to other invertebrates, and ultimately, the energy flow between stream algae and fish. Our findings suggest that disturbances to streams can be an important mechanism affecting transfer of primary energy sources to higher trophic levels.</p>","language":"English","publisher":"NRC Research Press","doi":"10.1139/f03-035","issn":"0706652X","usgsCitation":"Perry, R., Bradford, M., and Grout, J., 2003, Effects of disturbance on contribution of energy sources to growth of juvenile chinook salmon (Oncorhynchus tshawytscha) in boreal streams: Canadian Journal of Fisheries and Aquatic Sciences, v. 60, no. 4, p. 390-400, https://doi.org/10.1139/f03-035.","productDescription":"11 p.","startPage":"390","endPage":"400","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":234538,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208653,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/f03-035"}],"country":"Canada","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -140.6634521484375,\n              64.69440978626835\n            ],\n            [\n              -140.6304931640625,\n              63.12705521006729\n            ],\n            [\n              -136.6754150390625,\n              63.17171454570863\n            ],\n            [\n              -136.9500732421875,\n              64.67091929440798\n            ],\n            [\n              -140.6634521484375,\n              64.69440978626835\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"60","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a06d4e4b0c8380cd51427","contributors":{"authors":[{"text":"Perry, R.W.","contributorId":43947,"corporation":false,"usgs":true,"family":"Perry","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":406672,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bradford, M.J.","contributorId":105495,"corporation":false,"usgs":true,"family":"Bradford","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":406674,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grout, J.A.","contributorId":93674,"corporation":false,"usgs":true,"family":"Grout","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":406673,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025807,"text":"70025807 - 2003 - Radio tag retention and tag-related mortality among adult sockeye salmon","interactions":[],"lastModifiedDate":"2017-03-10T09:00:15","indexId":"70025807","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":"Radio tag retention and tag-related mortality among adult sockeye salmon","docAbstract":"<p><span>Tag retention and tag-related mortality are concerns for any tagging study but are rarely estimated. We assessed retention and mortality rates for esophageal radio tag implants in adult sockeye salmon </span><i>Oncorhynchus nerka</i><span>. Migrating sockeye salmon captured at the outlet of Lake Clark, Alaska, were implanted with one of four different radio tags (14.5 × 43 mm (diameter × length), 14.5 × 49 mm, 16 × 46 mm, and 19 × 51 mm). Fish were observed for 15 to 35 d after tagging to determine retention and mortality rates. The overall tag retention rate was high (0.98; 95% confidence interval (CI), 0.92-1.00; minimum, 33 d), with one loss of a 19-mm × 51- mm tag. Mortality of tagged sockeye salmon (0.02; 95% CI, 0-0.08) was similar to that of untagged controls (0.03 (0-0.15)). Sockeye salmon with body lengths (mid-eye to tail fork) of 585-649 mm retained tags as large as 19 × 51 mm and those with body lengths of 499-628 mm retained tags as small as 14.5 × 43 mm for a minimum of 33 d with no increase in mortality. The tags used in this study represent a suite of radio tags that vary in size, operational life, and cost but that are effective in tracking adult anadromous salmon with little tag loss or increase in fish mortality.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8675(2003)023<0978:RTRATM>2.0.CO;2","issn":"02755947","usgsCitation":"Ramstad, K.M., and Woody, C.A., 2003, Radio tag retention and tag-related mortality among adult sockeye salmon: North American Journal of Fisheries Management, v. 23, no. 3, p. 978-982, https://doi.org/10.1577/1548-8675(2003)023<0978:RTRATM>2.0.CO;2.","productDescription":"5 p.","startPage":"978","endPage":"982","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":235044,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Lake Clark","volume":"23","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a939ae4b0c8380cd80f13","contributors":{"authors":[{"text":"Ramstad, Kristina M.","contributorId":172547,"corporation":false,"usgs":false,"family":"Ramstad","given":"Kristina","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":406643,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Woody, Carol Ann","contributorId":172548,"corporation":false,"usgs":false,"family":"Woody","given":"Carol","email":"","middleInitial":"Ann","affiliations":[],"preferred":false,"id":406644,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025806,"text":"70025806 - 2003 - Challenges to reestablishment of free-ranging populations of black-footed ferrets","interactions":[],"lastModifiedDate":"2021-07-26T18:22:28.433873","indexId":"70025806","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1303,"text":"Comptes Rendus - Biologies","active":true,"publicationSubtype":{"id":10}},"title":"Challenges to reestablishment of free-ranging populations of black-footed ferrets","docAbstract":"<p><span>The&nbsp;black-footed ferret&nbsp;(</span><i>Mustela nigripes</i><span>) of North America is critically endangered due in part to its extreme specialization on formerly stable and abundant&nbsp;prairie dogs&nbsp;(</span><i>Cynomys</i><span>). Its close relative, the Siberian&nbsp;polecat&nbsp;(</span><i>M. eversmannii</i><span>) seems to have been subjected to a varying environment that was not conducive to specialization. One source of environmental variation in Asian&nbsp;steppes&nbsp;was plague (caused by&nbsp;</span><i>Yersina pestis</i><span>), which was absent from North America. Introduction of plague to North America presents serious challenges to ferret recovery. Partial solutions to other biological and political problems have been found, resulting in improved production in captivity, increased survival post-release, and thriving populations in plague-free South Dakota.&nbsp;</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/s1631-0691(03)00046-5","issn":"16310691","usgsCitation":"Biggins, E., and Godbey, J.L., 2003, Challenges to reestablishment of free-ranging populations of black-footed ferrets: Comptes Rendus - Biologies, v. 326, no. SUPPL. 1, p. 104-111, https://doi.org/10.1016/s1631-0691(03)00046-5.","productDescription":"8 p.","startPage":"104","endPage":"111","costCenters":[],"links":[{"id":387438,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"326","issue":"SUPPL. 1","noUsgsAuthors":false,"publicationDate":"2003-08-01","publicationStatus":"PW","scienceBaseUri":"5059f3fde4b0c8380cd4ba89","contributors":{"authors":[{"text":"Biggins, E.","contributorId":88303,"corporation":false,"usgs":true,"family":"Biggins","given":"E.","email":"","affiliations":[],"preferred":false,"id":406642,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Godbey, Jerry L.","contributorId":58988,"corporation":false,"usgs":true,"family":"Godbey","given":"Jerry","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":406641,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025805,"text":"70025805 - 2003 - Modeling Np and Pu transport with a surface complexation model and spatially variant sorption capacities: Implications for reactive transport modeling and performance assessments of nuclear waste disposal sites","interactions":[],"lastModifiedDate":"2018-11-19T09:14:44","indexId":"70025805","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1315,"text":"Computers & Geosciences","printIssn":"0098-3004","active":true,"publicationSubtype":{"id":10}},"title":"Modeling Np and Pu transport with a surface complexation model and spatially variant sorption capacities: Implications for reactive transport modeling and performance assessments of nuclear waste disposal sites","docAbstract":"<p>One-dimensional (1D) geochemical transport modeling is used to demonstrate the effects of speciation and sorption reactions on the ground-water transport of Np and Pu, two redox-sensitive elements. Earlier 1D simulations (Reardon, 1981) considered the kinetically limited dissolution of calcite and its effect on ion-exchange reactions (involving<span>&nbsp;</span><sup>90</sup>Sr, Ca, Na, Mg and K), and documented the spatial variation of a<span>&nbsp;</span><sup>90</sup>Sr partition coefficient under both transient and steady-state chemical conditions. In contrast, the simulations presented here assume local equilibrium for all reactions, and consider sorption on constant potential, rather than constant charge, surfaces. Reardon's (1981) seminal findings on the spatial and temporal variability of partitioning (of<span>&nbsp;</span><sup>90</sup>Sr) are reexamined and found partially caused by his assumption of a kinetically limited reaction.</p><p>In the present work, sorption is assumed the predominant retardation process controlling Pu and Np transport, and is simulated using a diffuse-double-layer-surface-complexation (DDLSC) model. Transport simulations consider the infiltration of Np- and Pu-contaminated waters into an initially uncontaminated environment, followed by the cleanup of the resultant contamination with uncontaminated water. Simulations are conducted using different spatial distributions of sorption capacities (with the same total potential sorption capacity, but with different variances and spatial correlation structures). Results obtained differ markedly from those that would be obtained in transport simulations using constant<span>&nbsp;</span><i>K</i><sub>d</sub>, Langmuir or Freundlich sorption models. When possible, simulation results (breakthrough curves) are fitted to a constant<span>&nbsp;</span><i>K</i><sub>d</sub>advection–dispersion transport model and compared. Functional differences often are great enough that they prevent a meaningful fit of the simulation results with a constant<span>&nbsp;</span><i>K</i><sub>d</sub><span>&nbsp;</span>(or even a Langmuir or Freundlich) model, even in the case of Np, a weakly sorbed radionuclide under the simulation conditions. Functional behaviors that cannot be fit include concentration trend reversals and radionuclide desorption spikes. Other simulation results are fit successfully but the fitted parameters (<i>K</i><sub>d</sub><span>&nbsp;</span>and dispersivity) vary significantly depending on simulation conditions (e.g. “infiltration” vs. “cleanup” conditions). Notably, an increase in the variance of the specified sorption capacities results in a marked increase in the dispersion of the radionuclides.</p><p>The results presented have implications for the simulation of radionuclide migration in performance assessments of nuclear waste-disposal sites, for the future monitoring of those sites, and more generally for modeling contaminant transport in ground-water environments.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0098-3004(03)00009-8","issn":"00983004","usgsCitation":"Glynn, P.D., 2003, Modeling Np and Pu transport with a surface complexation model and spatially variant sorption capacities: Implications for reactive transport modeling and performance assessments of nuclear waste disposal sites: Computers & Geosciences, v. 29, no. 3, p. 331-349, https://doi.org/10.1016/S0098-3004(03)00009-8.","productDescription":"19 p.","startPage":"331","endPage":"349","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":235008,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208915,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0098-3004(03)00009-8"}],"volume":"29","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5bcae4b0c8380cd6f7e0","contributors":{"authors":[{"text":"Glynn, P. D.","contributorId":7008,"corporation":false,"usgs":true,"family":"Glynn","given":"P.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":406640,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025803,"text":"70025803 - 2003 - The effects of ultraviolet-B radiation on the toxicity of fire-fighting chemicals","interactions":[],"lastModifiedDate":"2012-03-12T17:20:32","indexId":"70025803","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"The effects of ultraviolet-B radiation on the toxicity of fire-fighting chemicals","docAbstract":"The interactive effects of ultraviolet (UV) and fire-retardant chemicals were evaluated by exposing rainbow trout (Oncorhyncus mykiss) juveniles and tadpoles of southern leopard frogs (Rana sphenocephala) to six fire-retardant formulations with and without sodium ferrocyanide (yellow prussiate of soda [YPS]) and to YPS alone under three simulated UV light treatments. Yellow prussiate of soda is used as a corrosion inhibitor in some of the fire-retardant chemical formulations. The underwater UV intensities measured were about 2 to 10% of surface irradiance measured in various aquatic habitats and were within tolerance limits for the species tested. Mortality of trout and tadpoles exposed to Fire-Trol?? GTS-R, Fire-Trol 300-F, Fire-Trol LCA-R, and Fire-Trol LCA-F was significantly increased in the presence of UV radiation when YPS was present in the formulation. The boreal toad (Bufo boreas), listed as endangered by the state of Colorado (USA), and southern leopard frog were similar in their sensitivity to these chemicals. Photoenhancement of fire-retardant chemicals can occur in a range of aquatic habitats and may be of concern even when optical clarity of water is low; however, other habitat characteristics can also reduce fire retardant toxicity.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1897/1551-5028(2003)22<1525:TEOURO>2.0.CO;2","issn":"07307268","usgsCitation":"Calfee, R., and Little, E.E., 2003, The effects of ultraviolet-B radiation on the toxicity of fire-fighting chemicals: Environmental Toxicology and Chemistry, v. 22, no. 7, p. 1525-1531, https://doi.org/10.1897/1551-5028(2003)22<1525:TEOURO>2.0.CO;2.","startPage":"1525","endPage":"1531","numberOfPages":"7","costCenters":[],"links":[{"id":208891,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/1551-5028(2003)22<1525:TEOURO>2.0.CO;2"},{"id":234973,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baba4e4b08c986b322f95","contributors":{"authors":[{"text":"Calfee, R.D.","contributorId":85130,"corporation":false,"usgs":true,"family":"Calfee","given":"R.D.","affiliations":[],"preferred":false,"id":406634,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Little, E. E.","contributorId":13187,"corporation":false,"usgs":true,"family":"Little","given":"E.","email":"","middleInitial":"E.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":false,"id":406633,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025802,"text":"70025802 - 2003 - Empirical ground-motion relations for subduction-zone earthquakes and their application to Cascadia and other regions","interactions":[],"lastModifiedDate":"2022-10-10T16:14:11.049194","indexId":"70025802","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Empirical ground-motion relations for subduction-zone earthquakes and their application to Cascadia and other regions","docAbstract":"<p><span>Ground-motion relations for earthquakes that occur in subduction zones are an important input to seismic-hazard analyses in many parts of the world. In the Cascadia region (Washington, Oregon, northern California, and British Columbia), for example, there is a significant hazard from megathrust earthquakes along the subduction interface and from large events within the subducting slab. These hazards are in addition to the hazard from shallow earthquakes in the overlying crust. We have compiled a response spectra database from thousands of strong-motion recordings from events of moment magnitude (</span><strong>M</strong><span>) 5-8.3 occurring in subduction zones around the world, including both interface and in-slab events. The 2001&nbsp;</span><strong>M</strong><span>&nbsp;6.8 Nisqually and 1999&nbsp;</span><strong>M</strong><span>&nbsp;5.9 Satsop earthquakes are included in the database, as are many records from subduction zones in Japan (Kyoshin-Net data), Mexico (Guerrero data), and Central America. The size of the database is four times larger than that available for previous empirical regressions to determine ground-motion relations for subduction-zone earthquakes. The large dataset enables improved determination of attenuation parameters and magnitude scaling, for both interface and in-slab events. Soil response parameters are also better determined by the data.</span></p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120020156","usgsCitation":"Atkinson, G.M., and Boore, D., 2003, Empirical ground-motion relations for subduction-zone earthquakes and their application to Cascadia and other regions: Bulletin of the Seismological Society of America, v. 93, no. 4, p. 1703-1729, https://doi.org/10.1785/0120020156.","productDescription":"27 p.","startPage":"1703","endPage":"1729","costCenters":[],"links":[{"id":408090,"rank":2,"type":{"id":12,"text":"Errata"},"url":"https://doi.org/10.1785/0120080108"},{"id":234939,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"British Columbia, California, Oregon, Washington","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": 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,{"id":70025801,"text":"70025801 - 2003 - Bayesian Estimations of Peak Ground Acceleration and 5% Damped Spectral Acceleration from Modified Mercalli Intensity Data","interactions":[],"lastModifiedDate":"2012-03-12T17:20:32","indexId":"70025801","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1436,"text":"Earthquake Spectra","active":true,"publicationSubtype":{"id":10}},"title":"Bayesian Estimations of Peak Ground Acceleration and 5% Damped Spectral Acceleration from Modified Mercalli Intensity Data","docAbstract":"We describe a new probabilistic method that uses observations of modified Mercalli intensity (MMI) from past earthquakes to make quantitative estimates of ground shaking parameters (i.e., peak ground acceleration, peak ground velocity, 5% damped spectral acceleration values, etc.). The method uses a Bayesian approach to make quantitative estimates of the probabilities of different levels of ground motions from intensity data given an earthquake of known location and magnitude. The method utilizes probability distributions from an intensity/ground motion data set along with a ground motion attenuation relation to estimate the ground motion from intensity. The ground motions with the highest probabilities are the ones most likely experienced at the site of the MMI observation. We test the method using MMI/ground motion data from California and published ground motion attenuation relations to estimate the ground motions for several earthquakes: 1999 Hector Mine, California (M7.1); 1988 Saguenay, Quebec (M5.9); and 1982 Gaza, New Hampshire (M4.4). In an example where the method is applied to a historic earthquake, we estimate that the peak ground accelerations associated with the 1727 (M???5.2) earthquake at Newbury, Massachusetts, ranged from 0.23 g at Newbury to 0.06 g at Boston.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earthquake Spectra","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1193/1.1596549","issn":"87552930","usgsCitation":"Ebel, J., and Wald, D., 2003, Bayesian Estimations of Peak Ground Acceleration and 5% Damped Spectral Acceleration from Modified Mercalli Intensity Data: Earthquake Spectra, v. 19, no. 3, p. 511-529, https://doi.org/10.1193/1.1596549.","startPage":"511","endPage":"529","numberOfPages":"19","costCenters":[],"links":[{"id":208870,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1193/1.1596549"},{"id":234938,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"3","noUsgsAuthors":false,"publicationDate":"2003-08-01","publicationStatus":"PW","scienceBaseUri":"5059f029e4b0c8380cd4a609","contributors":{"authors":[{"text":"Ebel, J.E.","contributorId":54619,"corporation":false,"usgs":true,"family":"Ebel","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":406630,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wald, D.J. 0000-0002-1454-4514","orcid":"https://orcid.org/0000-0002-1454-4514","contributorId":43809,"corporation":false,"usgs":true,"family":"Wald","given":"D.J.","affiliations":[],"preferred":false,"id":406629,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025800,"text":"70025800 - 2003 - Impacts of the Columbia River hydroelectric system on main-stem habitats of fall chinook salmon","interactions":[],"lastModifiedDate":"2016-04-26T16:44:52","indexId":"70025800","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":"Impacts of the Columbia River hydroelectric system on main-stem habitats of fall chinook salmon","docAbstract":"<p>Salmonid habitats in main-stem reaches of the Columbia and Snake rivers have changed dramatically during the past 60 years because of hydroelectric development and operation. Only about 13% and 58% of riverine habitats in the Columbia and Snake rivers, respectively, remain. Most riverine habitat is found in the upper Snake River; however, it is upstream of Hells Canyon Dam and not accessible to anadromous salmonids. We determined that approximately 661 and 805 km of the Columbia and Snake rivers, respectively, were once used by fall chinook salmon Oncorhynchus tshawytscha for spawning. Fall chinook salmon currently use only about 85 km of the main-stem Columbia River and 163 km of the main-stem Snake River for spawning. We used a geomorphic model to identify three river reaches downstream of present migration barriers with high potential for restoration of riverine processes: the Columbia River upstream of John Day Dam, the Columbia-Snake-Yakima River confluence, and the lower Snake River upstream of Little Goose Dam. Our analysis substantiated the assertion that historic spawning areas for fall chinook salmon occurred primarily within wide alluvial floodplains, which were once common in the mainstem Columbia and Snake rivers. These areas possessed more unconsolidated sediment and more bars and islands and had lower water surface slopes than did less extensively used areas. Because flows in the main stem are now highly regulated, the predevelopment alluvial river ecosystem is not expected to be restored simply by operational modification of one or more dams. Establishing more normative flow regimes - specifically, sustained peak flows for scouring - is essential to restoring the functional characteristics of existing, altered habitats. Restoring production of fall chinook salmon to any of these reaches also requires that population genetics and viability of potential seed populations (i.e., from tributaries, tailrace spawning areas, and hatcheries) be considered.</p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/M02-013","issn":"02755947","usgsCitation":"Dauble, D., Hanrahan, T., Geist, D., and Parsley, M., 2003, Impacts of the Columbia River hydroelectric system on main-stem habitats of fall chinook salmon: North American Journal of Fisheries Management, v. 23, no. 3, p. 641-659, https://doi.org/10.1577/M02-013.","productDescription":"19 p.","startPage":"641","endPage":"659","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":489779,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.osti.gov/biblio/2506891","text":"External Repository"},{"id":234903,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208850,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M02-013"}],"volume":"23","issue":"3","noUsgsAuthors":false,"publicationDate":"2003-08-01","publicationStatus":"PW","scienceBaseUri":"505a38fae4b0c8380cd6176f","contributors":{"authors":[{"text":"Dauble, D.D.","contributorId":107888,"corporation":false,"usgs":true,"family":"Dauble","given":"D.D.","email":"","affiliations":[],"preferred":false,"id":406628,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hanrahan, T.P.","contributorId":47132,"corporation":false,"usgs":true,"family":"Hanrahan","given":"T.P.","email":"","affiliations":[],"preferred":false,"id":406626,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Geist, D.R.","contributorId":45091,"corporation":false,"usgs":true,"family":"Geist","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":406625,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Parsley, M.J.","contributorId":59542,"corporation":false,"usgs":true,"family":"Parsley","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":406627,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70025797,"text":"70025797 - 2003 - An empirical approach to inversion of an unconventional helicopter electromagnetic dataset","interactions":[],"lastModifiedDate":"2012-03-12T17:20:32","indexId":"70025797","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2165,"text":"Journal of Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"An empirical approach to inversion of an unconventional helicopter electromagnetic dataset","docAbstract":"A helicopter electromagnetic (HEM) survey acquired at the U.S. Idaho National Engineering and Environmental Laboratory (INEEL) used a modification of a traditional mining airborne method flown at low levels for detailed characterization of shallow waste sites. The low sensor height, used to increase resolution, invalidates standard assumptions used in processing HEM data. Although the survey design strategy was sound, traditional interpretation techniques, routinely used in industry, proved ineffective. Processed data and apparent resistivity maps were severely distorted, and hence unusable, due to low flight height effects, high magnetic permeability of the basalt host, and the conductive, three-dimensional nature of the waste site targets.To accommodate these interpretation challenges, we modified a one-dimensional inversion routine to include a linear term in the objective function that allows for the magnetic and three-dimensional electromagnetic responses in the in-phase data. Although somewhat ad hoc, the use of this term in the inverse routine, referred to as the shift factor, was successful in defining the waste sites and reducing noise due to the low flight height and magnetic characteristics of the host rock. Many inversion scenarios were applied to the data and careful analysis was necessary to determine the parameters appropriate for interpretation, hence the approach was empirical. Data from three areas were processed with this scheme to highlight different interpretational aspects of the method. Wastes sites were delineated with the shift terms in two of the areas, allowing for separation of the anthropomorphic targets from the natural one-dimensional host. In the third area, the estimated resistivity and the shift factor were used for geological mapping. The high magnetic content of the native soil enabled the mapping of disturbed soil with the shift term. Published by Elsevier Science B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0926-9851(03)00011-9","issn":"09269851","usgsCitation":"Pellerin, L., and Labson, V., 2003, An empirical approach to inversion of an unconventional helicopter electromagnetic dataset: Journal of Applied Geophysics, v. 53, no. 1, p. 49-61, https://doi.org/10.1016/S0926-9851(03)00011-9.","startPage":"49","endPage":"61","numberOfPages":"13","costCenters":[],"links":[{"id":208831,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0926-9851(03)00011-9"},{"id":234864,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea33e4b0c8380cd486d7","contributors":{"authors":[{"text":"Pellerin, L.","contributorId":94073,"corporation":false,"usgs":true,"family":"Pellerin","given":"L.","email":"","affiliations":[],"preferred":false,"id":406613,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Labson, V.F.","contributorId":20506,"corporation":false,"usgs":true,"family":"Labson","given":"V.F.","email":"","affiliations":[],"preferred":false,"id":406612,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025795,"text":"70025795 - 2003 - Pore space analysis of NAPL distribution in sand-clay media","interactions":[],"lastModifiedDate":"2012-03-12T17:20:33","indexId":"70025795","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":664,"text":"Advances in Water Resources","active":true,"publicationSubtype":{"id":10}},"title":"Pore space analysis of NAPL distribution in sand-clay media","docAbstract":"This paper introduces a conceptual model of clays and non-aqueous phase liquids (NAPLs) at the pore scale that has been developed from a mathematical unit cell model, and direct micromodel observation and measurement of clay-containing porous media. The mathematical model uses a unit cell concept with uniform spherical grains for simulating the sand in the sand-clay matrix (???10% clay). Micromodels made with glass slides and including different clay-containing porous media were used to investigate the two clays (kaolinite and montmorillonite) and NAPL distribution within the pore space. The results were used to understand the distribution of NAPL advancing into initially saturated sand and sand-clay media, and provided a detailed analysis of the pore-scale geometry, pore size distribution, NAPL entry pressures, and the effect of clay on this geometry. Interesting NAPL saturation profiles were observed as a result of the complexity of the pore space geometry with the different packing angles and the presence of clays. The unit cell approach has applications for enhancing the mechanistic understanding and conceptualization, both visually and mathematically, of pore-scale processes such as NAPL and clay distribution. ?? 2003 Elsevier Science Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Advances in Water Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0309-1708(03)00032-0","issn":"03091708","usgsCitation":"Matmon, D., and Hayden, N., 2003, Pore space analysis of NAPL distribution in sand-clay media: Advances in Water Resources, v. 26, no. 7, p. 773-785, https://doi.org/10.1016/S0309-1708(03)00032-0.","startPage":"773","endPage":"785","numberOfPages":"13","costCenters":[],"links":[{"id":208811,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0309-1708(03)00032-0"},{"id":234824,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7dcce4b0c8380cd7a178","contributors":{"authors":[{"text":"Matmon, D.","contributorId":6284,"corporation":false,"usgs":true,"family":"Matmon","given":"D.","email":"","affiliations":[],"preferred":false,"id":406608,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayden, N.J.","contributorId":25425,"corporation":false,"usgs":true,"family":"Hayden","given":"N.J.","email":"","affiliations":[],"preferred":false,"id":406609,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025794,"text":"70025794 - 2003 - Timing of recent accelerations of Pine Island Glacier, Antarctica","interactions":[],"lastModifiedDate":"2018-11-01T14:28:56","indexId":"70025794","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Timing of recent accelerations of Pine Island Glacier, Antarctica","docAbstract":"We have used Interferometric Synthetic Aperture Radar (InSAR) data and sequential Landsat imagery to identify and temporally constrain two acceleration events on Pine Island Glacier (PIG). These two events are separated by a period of at least seven years (1987 - 1994). The change in discharge between two flux gates indicates that the majority of the increase in discharge associated with the second acceleration originates well inland (>80 km) from the grounding line. An analysis indicates that changes in driving stress consistent with observed thinning rates are sufficient in magnitude to explain much of the acceleration.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","doi":"10.1029/2003GL017609","issn":"00948276","usgsCitation":"Joughin, I., Rignot, E., Rosanova, C.E., Lucchitta, B.K., and Bohlander, J., 2003, Timing of recent accelerations of Pine Island Glacier, Antarctica: Geophysical Research Letters, v. 30, no. 13, 4 p., https://doi.org/10.1029/2003GL017609.","productDescription":"4 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":478473,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://escholarship.org/uc/item/00m2p7sb","text":"External Repository"},{"id":234823,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Antarctica","otherGeospatial":"Pine Island Glacier","volume":"30","issue":"13","noUsgsAuthors":false,"publicationDate":"2003-07-11","publicationStatus":"PW","scienceBaseUri":"505bb3f5e4b08c986b3260bd","contributors":{"authors":[{"text":"Joughin, I.","contributorId":105084,"corporation":false,"usgs":true,"family":"Joughin","given":"I.","affiliations":[],"preferred":false,"id":406607,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rignot, Eric","contributorId":34760,"corporation":false,"usgs":true,"family":"Rignot","given":"Eric","email":"","affiliations":[],"preferred":false,"id":406604,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rosanova, Christine E.","contributorId":77239,"corporation":false,"usgs":true,"family":"Rosanova","given":"Christine","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":406605,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lucchitta, Baerbel K. blucchitta@usgs.gov","contributorId":3649,"corporation":false,"usgs":true,"family":"Lucchitta","given":"Baerbel","email":"blucchitta@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":406603,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bohlander, J.","contributorId":82101,"corporation":false,"usgs":true,"family":"Bohlander","given":"J.","email":"","affiliations":[],"preferred":false,"id":406606,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70025793,"text":"70025793 - 2003 - Identification of linear and threshold responses in streams along a gradient of urbanization in Anchorage, Alaska","interactions":[],"lastModifiedDate":"2018-07-07T18:18:38","indexId":"70025793","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Identification of linear and threshold responses in streams along a gradient of urbanization in Anchorage, Alaska","docAbstract":"We examined biotic and physiochemical responses in urbanized Anchorage, Alaska, to the percent of impervious area within stream basins, as determined by high-resolution IKONOS satellite imagery and aerial photography. Eighteen of the 86 variables examined, including riparian and instream habitat, macroinvertebrate communities, and water/sediment chemistry, were significantly correlated with percent impervious area. Variables related to channel condition, instream substrate, water chemistry, and residential and transportation right-of-way land uses were identified by principal components analysis as significant factors separating site groups. Detrended canonical correspondence analysis indicated that the macroinvertebrate communities responded to an urbanization gradient closely paralleling the percent of impervious area within the subbasin. A sliding regression analysis of variables significantly correlated with percent impervious area revealed 8 variables exhibiting threshold responses that correspond to a mean of 4.4-5.8% impervious area, much lower than mean values reported in other, similar investigations. As contributing factors to a subbasin's impervious area, storm drains and roads appeared to be important elements influencing the degradation of water quality with respect to the biota.","language":"English","publisher":"Springer","doi":"10.1023/A:1026211808745","issn":"00188158","usgsCitation":"Ourso, R.T., and Frenzel, S., 2003, Identification of linear and threshold responses in streams along a gradient of urbanization in Anchorage, Alaska: Hydrobiologia, v. 501, p. 117-131, https://doi.org/10.1023/A:1026211808745.","productDescription":"15 p.","startPage":"117","endPage":"131","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":234787,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","city":"Anchorage","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -150.281982421875,\n              60.975772391022176\n            ],\n            [\n              -149.46350097656247,\n              60.975772391022176\n            ],\n            [\n              -149.46350097656247,\n              61.38225157465406\n            ],\n            [\n              -150.281982421875,\n              61.38225157465406\n            ],\n            [\n              -150.281982421875,\n              60.975772391022176\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"501","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3830e4b0c8380cd61498","contributors":{"authors":[{"text":"Ourso, Robert T. 0000-0002-5952-8681 rtourso@usgs.gov","orcid":"https://orcid.org/0000-0002-5952-8681","contributorId":203207,"corporation":false,"usgs":true,"family":"Ourso","given":"Robert","email":"rtourso@usgs.gov","middleInitial":"T.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":120,"text":"Alaska Science Center Water","active":true,"usgs":true}],"preferred":true,"id":406602,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frenzel, S.A.","contributorId":9246,"corporation":false,"usgs":true,"family":"Frenzel","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":406601,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025792,"text":"70025792 - 2003 - Hilbert-Huang transform analysis of dynamic and earthquake motion recordings","interactions":[],"lastModifiedDate":"2016-01-25T15:48:04","indexId":"70025792","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2252,"text":"Journal of Engineering Mechanics","active":true,"publicationSubtype":{"id":10}},"title":"Hilbert-Huang transform analysis of dynamic and earthquake motion recordings","docAbstract":"<p>This study examines the rationale of Hilbert-Huang transform (HHT) for analyzing dynamic and earthquake motion recordings in studies of seismology and engineering. In particular, this paper first provides the fundamentals of the HHT method, which consist of the empirical mode decomposition (EMD) and the Hilbert spectral analysis. It then uses the HHT to analyze recordings of hypothetical and real wave motion, the results of which are compared with the results obtained by the Fourier data processing technique. The analysis of the two recordings indicates that the HHT method is able to extract some motion characteristics useful in studies of seismology and engineering, which might not be exposed effectively and efficiently by Fourier data processing technique. Specifically, the study indicates that the decomposed components in EMD of HHT, namely, the intrinsic mode function (IMF) components, contain observable, physical information inherent to the original data. It also shows that the grouped IMF components, namely, the EMD-based low- and high-frequency components, can faithfully capture low-frequency pulse-like as well as high-frequency wave signals. Finally, the study illustrates that the HHT-based Hilbert spectra are able to reveal the temporal-frequency energy distribution for motion recordings precisely and clearly.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Engineering Mechanics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Society of Civil Engineers","publisherLocation":"New York","doi":"10.1061/(ASCE)0733-9399(2003)129:8(861)","issn":"07339399","usgsCitation":"Zhang, R., Ma, S., Safak, E., and Hartzell, S., 2003, Hilbert-Huang transform analysis of dynamic and earthquake motion recordings: Journal of Engineering Mechanics, v. 129, no. 8, p. 861-875, https://doi.org/10.1061/(ASCE)0733-9399(2003)129:8(861).","productDescription":"15 p.","startPage":"861","endPage":"875","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":234786,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208790,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)0733-9399(2003)129:8(861)"}],"volume":"129","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a314ce4b0c8380cd5dde6","contributors":{"authors":[{"text":"Zhang, R.R.","contributorId":18942,"corporation":false,"usgs":true,"family":"Zhang","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":406598,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ma, S.","contributorId":59189,"corporation":false,"usgs":true,"family":"Ma","given":"S.","email":"","affiliations":[],"preferred":false,"id":406599,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Safak, E.","contributorId":104070,"corporation":false,"usgs":true,"family":"Safak","given":"E.","email":"","affiliations":[],"preferred":false,"id":406600,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hartzell, S.","contributorId":12603,"corporation":false,"usgs":true,"family":"Hartzell","given":"S.","email":"","affiliations":[],"preferred":false,"id":406597,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70025790,"text":"70025790 - 2003 - Relative contribution of stocked walleyes in Tennessee reservoirs","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025790","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":"Relative contribution of stocked walleyes in Tennessee reservoirs","docAbstract":"Since the mid-1950s, fisheries biologists with the Tennessee Wildlife Resources Agency have stocked walleyes Stizostedion vitreum in several tributary reservoirs of the Cumberland and Tennessee rivers to augment declining native stocks; however, the efficacy of these management actions has never been formally evaluated. The contribution of stocked walleyes in four Tennessee reservoirs was evaluated during 1999 and 2000 by marking fry and fingerlings through oxytetracycline (OTC) immersion. Stocking densities were 13-48 fingerlings/ha, and marking efficacy was high for fish marked as fry (mean = 98%; SE = 1.7%) and fingerlings (mean = 99%; SE = 0.6%). Nearly all (94-100%; N = 509) of the age-1 and age-2 walleyes collected in the four reservoirs were OTC-marked. Based on these findings, fingerling walleyes must be stocked annually to sustain the walleye populations in these tributary impoundments.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M02-090","issn":"02755947","usgsCitation":"Vandergoot, C., and Bettoli, P., 2003, Relative contribution of stocked walleyes in Tennessee reservoirs: North American Journal of Fisheries Management, v. 23, no. 3, p. 1036-1041, https://doi.org/10.1577/M02-090.","startPage":"1036","endPage":"1041","numberOfPages":"6","costCenters":[],"links":[{"id":208772,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M02-090"},{"id":234750,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"3","noUsgsAuthors":false,"publicationDate":"2003-08-01","publicationStatus":"PW","scienceBaseUri":"505aa678e4b0c8380cd84e88","contributors":{"authors":[{"text":"Vandergoot, C.S.","contributorId":77080,"corporation":false,"usgs":true,"family":"Vandergoot","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":406592,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bettoli, P.W.","contributorId":80606,"corporation":false,"usgs":true,"family":"Bettoli","given":"P.W.","affiliations":[],"preferred":false,"id":406593,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025789,"text":"70025789 - 2003 - Managing a subsidized predator population: Reducing common raven predation on desert tortoises","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025789","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Managing a subsidized predator population: Reducing common raven predation on desert tortoises","docAbstract":"Human communities often are an inadvertent source of food, water, and other resources to native species of wildlife. Because these resources are more stable and predictable than those in a natural environment, animals that subsist on them are able to increase in numbers and expand their range, much to the detriment of their competitors and species they prey upon. In the Mojave Desert, common ravens (Corvus corax) have benefited from human-provided resources to increase in population size precipitously in recent years. This trend has caused concern because ravens prey on juvenile desert tortoises (Gopherus agassizii), a federally threatened species. In this paper, I discuss management strategies to reduce raven predation on desert tortoises. The recommendations fall into three categories: (1) managing raven populations by reducing access to anthropogenic resources; (2) removing offending ravens or other birds in specially targeted tortoise management zones; and (3) continuing research on raven ecology, raven behavior, and methods of reducing raven predation on tortoises. I also recommend approaching the problem within an adaptive management framework: management efforts should first be employed as scientific experiments - with replicates and controls - to yield an unbiased assessment of their effectiveness. Furthermore, these strategies should be implemented in concert with actions that reduce other causes of desert tortoise mortality to aid the long-term recovery of their populations. Overall, the approaches outlined in this paper are widely applicable to the management of subsidized predators, particularly where they present a threat to a declining species of prey.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00267-003-2982-x","issn":"0364152X","usgsCitation":"Boarman, W., 2003, Managing a subsidized predator population: Reducing common raven predation on desert tortoises: Environmental Management, v. 32, no. 2, p. 205-217, https://doi.org/10.1007/s00267-003-2982-x.","startPage":"205","endPage":"217","numberOfPages":"13","costCenters":[],"links":[{"id":208771,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00267-003-2982-x"},{"id":234749,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4c88e4b0c8380cd69d08","contributors":{"authors":[{"text":"Boarman, W.I.","contributorId":73523,"corporation":false,"usgs":true,"family":"Boarman","given":"W.I.","email":"","affiliations":[],"preferred":false,"id":406591,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025787,"text":"70025787 - 2003 - To the National Map and beyond","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025787","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1191,"text":"Cartography and Geographic Information Science","active":true,"publicationSubtype":{"id":10}},"title":"To the National Map and beyond","docAbstract":"Scientific understanding, technology, and social, economic, and environmental conditions have driven a rapidly changing demand for geographic information, both digital and analog. For more than a decade, the U.S. Geological Survey (USGS) has been developing innovative partnerships with other government agencies and private industry to produce and distribute geographic information efficiently; increase activities in remote sensing to ensure ongoing monitoring of the land surface; and develop new understanding of the causes and consequences of land surface change. These activities are now contributing to a more robust set of geographic information called The National Map (TNM). The National Map is designed to provide an up-to-date, seamless, horizontally and vertically integrated set of basic digital geographic data, a frequent monitoring of changes on the land surface, and an understanding of the condition of the Earth's surface and many of the processes that shape it. The USGS has reorganized its National Mapping Program into three programs to address the continuum of scientific activities-describing (mapping), monitoring, understanding, modeling, and predicting. The Cooperative Topographic Mapping Program focuses primarily on the mapping and revision aspects of TNM. The National Map also includes results from the Land Remote Sensing and Geographic Analysis and Monitoring Programs that provide continual updates, new insights, and analytical tools. The National Map is valuable as a framework for current research, management, and operational activities. It also provides a critical framework for the development of distributed, spatially enabled decision support systems.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Cartography and Geographic Information Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1559/152304003100011018","issn":"15230406","usgsCitation":"Kelmelis, J., 2003, To the National Map and beyond: Cartography and Geographic Information Science, v. 30, no. 2, p. 185-198, https://doi.org/10.1559/152304003100011018.","startPage":"185","endPage":"198","numberOfPages":"14","costCenters":[],"links":[{"id":208744,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1559/152304003100011018"},{"id":234711,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb42be4b08c986b326212","contributors":{"authors":[{"text":"Kelmelis, J.","contributorId":73386,"corporation":false,"usgs":true,"family":"Kelmelis","given":"J.","email":"","affiliations":[],"preferred":false,"id":406585,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025786,"text":"70025786 - 2003 - Clay-mineral suites, sources, and inferred dispersal routes: Southern California continental shelf","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025786","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2664,"text":"Marine Environmental Research","active":true,"publicationSubtype":{"id":10}},"title":"Clay-mineral suites, sources, and inferred dispersal routes: Southern California continental shelf","docAbstract":"Clay mineralogy is useful in determining the distribution, sources, and dispersal routes of fine-grained sediments. In addition, clay minerals, especially smectite, may control the degree to which contaminants are adsorbed by the sediment. We analyzed 250 shelf sediment samples, 24 river-suspended-sediment samples, and 12 river-bed samples for clay-mineral contents in the Southern California Borderland from Point Conception to the Mexico border. In addition, six samples were analyzed from the Palos Verdes Headland in order to characterize the clay minerals contributed to the offshore from that point source. The <2 ??m-size fraction was isolated, Mg-saturated, and glycolated before analysis by X-ray diffraction. Semi-quantitative percentages of smectite, illite, and kaolinite plus chlorite were calculated using peak areas and standard weighting factors. Most fine-grained sediment is supplied to the shelf by rivers during major winter storms, especially during El Nin??o years. The largest sediment fluxes to the region are from the Santa Ynez and Santa Clara Rivers, which drain the Transverse Ranges. The mean clay-mineral suite for the entire shelf sediment data set (26% smectite, 50% illite, 24% kaolinite+chlorite) is closely comparable to that for the mean of all the rivers (31% smectite, 49% illite, 20% kaolinite+chlorite), indicating that the main source of shelf fine-grained sediments is the adjacent rivers. However, regional variations do exist and the shelf is divided into four provinces with characteristic clay-mineral suites. The means of the clay-mineral suites of the two southernmost provinces are within analytical error of the mineral suites of adjacent rivers. The next province to the north includes Santa Monica Bay and has a suite of clay minerals derived from mixing of fine-grained sediments from several sources, both from the north and south. The northernmost province clay-mineral suite matches moderately well that of the adjacent rivers, but does indicate some mixing from sources in adjacent provinces.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Environmental Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0141-1136(02)00326-4","issn":"01411136","usgsCitation":"Hein, J., Dowling, J., Schuetze, A., and Lee, H., 2003, Clay-mineral suites, sources, and inferred dispersal routes: Southern California continental shelf: Marine Environmental Research, v. 56, no. 1-2, p. 79-102, https://doi.org/10.1016/S0141-1136(02)00326-4.","startPage":"79","endPage":"102","numberOfPages":"24","costCenters":[],"links":[{"id":208721,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0141-1136(02)00326-4"},{"id":234676,"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":"5059f63fe4b0c8380cd4c62d","contributors":{"authors":[{"text":"Hein, J.R. 0000-0002-5321-899X","orcid":"https://orcid.org/0000-0002-5321-899X","contributorId":61429,"corporation":false,"usgs":true,"family":"Hein","given":"J.R.","affiliations":[],"preferred":false,"id":406582,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dowling, J.S.","contributorId":72443,"corporation":false,"usgs":true,"family":"Dowling","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":406583,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schuetze, A.","contributorId":21323,"corporation":false,"usgs":true,"family":"Schuetze","given":"A.","affiliations":[],"preferred":false,"id":406581,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lee, H.J.","contributorId":96693,"corporation":false,"usgs":true,"family":"Lee","given":"H.J.","email":"","affiliations":[],"preferred":false,"id":406584,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70025785,"text":"70025785 - 2003 - Application of a multipurpose unequal probability stream survey in the Mid-Atlantic Coastal Plain","interactions":[],"lastModifiedDate":"2012-03-12T17:20:23","indexId":"70025785","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Application of a multipurpose unequal probability stream survey in the Mid-Atlantic Coastal Plain","docAbstract":"A stratified, spatially balanced sample with unequal probability selection was used to design a multipurpose survey of headwater streams in the Mid-Atlantic Coastal Plain. Objectives for the survey include unbiased estimates of regional stream conditions, and adequate coverage of unusual but significant environmental settings to support empirical modeling of the factors affecting those conditions. The design and field application of the survey are discussed in light of these multiple objectives. A probability (random) sample of 175 first-order nontidal streams was selected for synoptic sampling of water chemistry and benthic and riparian ecology during late winter and spring 2000. Twenty-five streams were selected within each of seven hydrogeologic subregions (strata) that were delineated on the basis of physiography and surficial geology. In each subregion, unequal inclusion probabilities were used to provide an approximately even distribution of streams along a gradient of forested to developed (agricultural or urban) land in the contributing watershed. Alternate streams were also selected. Alternates were included in groups of five in each subregion when field reconnaissance demonstrated that primary streams were inaccessible or otherwise unusable. Despite the rejection and replacement of a considerable number of primary streams during reconnaissance (up to 40 percent in one subregion), the desired land use distribution was maintained within each hydrogeologic subregion without sacrificing the probabilistic design.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"1093474X","usgsCitation":"Ator, S., Olsen, A., Pitchford, A., and Denver, J.M., 2003, Application of a multipurpose unequal probability stream survey in the Mid-Atlantic Coastal Plain: Journal of the American Water Resources Association, v. 39, no. 4, p. 873-885.","startPage":"873","endPage":"885","numberOfPages":"13","costCenters":[],"links":[{"id":234675,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ec8ee4b0c8380cd4933a","contributors":{"authors":[{"text":"Ator, S.W. 0000-0002-9186-4837","orcid":"https://orcid.org/0000-0002-9186-4837","contributorId":104100,"corporation":false,"usgs":true,"family":"Ator","given":"S.W.","affiliations":[],"preferred":false,"id":406580,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Olsen, A.R.","contributorId":98089,"corporation":false,"usgs":true,"family":"Olsen","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":406578,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pitchford, A.M.","contributorId":75593,"corporation":false,"usgs":true,"family":"Pitchford","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":406577,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Denver, J. M.","contributorId":100356,"corporation":false,"usgs":true,"family":"Denver","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":406579,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
]}