We monitored the movement, distribution and site affinities of radio-marked Tule Greater White-fronted Geese (Anser albifrons elgasi) during spring and summer in Alaska, 1994-1997 and 2004. Our assessment of summer movements was comprehensive, as locations were obtained during prenesting, nesting, and molt for over 90% of geese with active radios captured during winter or the previous summer in Alaska. Geese arrived to coastal and interior marshes in the Cook Inlet Basin (CIB) from mid April to early May, after which they moved to nesting areas in the upper CIB. Nesting birds used coastal staging areas in close proximity to eventual nest site location. Molting sites included a sub-glacial lake system in the upper CIB, although up to 50% of geese underwent a molt migration to wetlands across the Alaska Range, 400-600 km west of the CIB. Geese that molted at distant sites returned to the CIB before autumn migration. Length of stay in the CIB varied among years from 108-119 days, and averaged 116 days. Summer home-range sizes, exclusive of molting areas, averaged >273,000 ha, and were substantially larger than reported for other northern-nesting waterfowl. No radio-marked geese were found nesting in the vicinity of Redoubt Bay on the west side of Cook Inlet, and few nested near the Susitna Flats, the only other previously known nesting areas. The absence of nesting geese from Redoubt Bay corroborates aerial survey data showing a precipitous decline in the use of the west side of Cook Inlet between the early 1980s and early 1990s. The change in distribution of geese is likely related to a major eruption of Redoubt Volcano in 1989 that significantly altered landscapes used by nesting, brood rearing, and molting geese in the vicinity of Redoubt Bay. High inter-site movements of Greater White-fronted Geese throughout summer in south central Alaska likely increases exposure to predation, but also promotes social interactions and facilitates pioneering of distant, and diverse habitats in a vast, patchy, and often unpredictable landscape.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/1524-4695(2006)29[43:TABFLS]2.0.CO;2","issn":"15244695","usgsCitation":"Ely, C.R., Bollinger, K., Hupp, J.W., Derksen, D., Terenzi, J., Takekawa, J.Y., Orthmeyer, D., Rothe, T., Petrula, M., and Yparraguirre, D., 2006, Traversing a boreal forest landscape: Summer movements of Tule Greater White-fronted Geese: Waterbirds, v. 29, no. 1, p. 43-55, https://doi.org/10.1675/1524-4695(2006)29[43:TABFLS]2.0.CO;2.","startPage":"43","endPage":"55","numberOfPages":"13","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":239579,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212143,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/1524-4695(2006)29[43:TABFLS]2.0.CO;2"}],"country":"United States","state":"Alaska","volume":"29","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb78ce4b08c986b327335","contributors":{"authors":[{"text":"Ely, Craig R. 0000-0003-4262-0892 cely@usgs.gov","orcid":"https://orcid.org/0000-0003-4262-0892","contributorId":3214,"corporation":false,"usgs":true,"family":"Ely","given":"Craig","email":"cely@usgs.gov","middleInitial":"R.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":426393,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bollinger, K.S.","contributorId":85542,"corporation":false,"usgs":true,"family":"Bollinger","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":426391,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hupp, Jerry W. 0000-0002-6439-3910 jhupp@usgs.gov","orcid":"https://orcid.org/0000-0002-6439-3910","contributorId":127803,"corporation":false,"usgs":true,"family":"Hupp","given":"Jerry","email":"jhupp@usgs.gov","middleInitial":"W.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":426388,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Derksen, D.V.","contributorId":23483,"corporation":false,"usgs":true,"family":"Derksen","given":"D.V.","affiliations":[],"preferred":false,"id":426387,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Terenzi, J.","contributorId":18975,"corporation":false,"usgs":true,"family":"Terenzi","given":"J.","affiliations":[],"preferred":false,"id":426386,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Takekawa, John Y. 0000-0003-0217-5907 john_takekawa@usgs.gov","orcid":"https://orcid.org/0000-0003-0217-5907","contributorId":176168,"corporation":false,"usgs":true,"family":"Takekawa","given":"John","email":"john_takekawa@usgs.gov","middleInitial":"Y.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":false,"id":426389,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Orthmeyer, D.L.","contributorId":84684,"corporation":false,"usgs":true,"family":"Orthmeyer","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":426390,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Rothe, T.C.","contributorId":10016,"corporation":false,"usgs":true,"family":"Rothe","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":426385,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Petrula, M.J.","contributorId":106713,"corporation":false,"usgs":true,"family":"Petrula","given":"M.J.","affiliations":[],"preferred":false,"id":426394,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Yparraguirre, D.R.","contributorId":97442,"corporation":false,"usgs":true,"family":"Yparraguirre","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":426392,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":70030654,"text":"70030654 - 2006 - Summer food habits and trophic overlap of roundtail chub and creek chub in Muddy Creek, Wyoming","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70030654","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3451,"text":"Southwestern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Summer food habits and trophic overlap of roundtail chub and creek chub in Muddy Creek, Wyoming","docAbstract":"Native fishes of the Upper Colorado River Basin have experienced substantial declines in abundance and distribution, and are extirpated from most of Wyoming. Muddy Creek, in south-central Wyoming (Little Snake River watershed), contains sympatric populations of native roundtail chub (Gila robusta), bluehead sucker, (Catostomus discobolus), and flannelmouth sucker (C. tatipinnis), and represents an area of high conservation concern because it is the only area known to have sympatric populations of all 3 species in Wyoming. However, introduced creek chub (Semotilus atromaculatus) are abundant and might have a negative influence on native fishes. We assessed summer food habits of roundtail chub and creek chub to provide information on the ecology of each species and obtain insight on potential trophic overlap. Roundtail chub and creek chub seemed to be opportunistic generalists that consumed a diverse array of food items. Stomach contents of both species were dominated by plant material, aquatic and terrestrial insects, and Fishes, but also included gastropods and mussels. Stomach contents were similar between species, indicating high trophic, overlap. No length-related patterns in diet were observed for either species. These results suggest that creek chubs have the potential to adversely influence the roundtail chub population through competition for food and the native fish assemblage through predation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Southwestern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1894/0038-4909(2006)51[22:SFHATO]2.0.CO;2","issn":"00384909","usgsCitation":"Quist, M., Bower, M., and Hubert, W., 2006, Summer food habits and trophic overlap of roundtail chub and creek chub in Muddy Creek, Wyoming: Southwestern Naturalist, v. 51, no. 1, p. 22-27, https://doi.org/10.1894/0038-4909(2006)51[22:SFHATO]2.0.CO;2.","startPage":"22","endPage":"27","numberOfPages":"6","costCenters":[],"links":[{"id":211732,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1894/0038-4909(2006)51[22:SFHATO]2.0.CO;2"},{"id":239079,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9f39e4b08c986b31e405","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":428048,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bower, M.R.","contributorId":14094,"corporation":false,"usgs":true,"family":"Bower","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":428047,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hubert, W.A.","contributorId":12822,"corporation":false,"usgs":true,"family":"Hubert","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":428046,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70010340,"text":"70010340 - 2006 - Field tests of acoustic telemetry for a portable coastal observatory","interactions":[],"lastModifiedDate":"2012-03-12T17:18:25","indexId":"70010340","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Field tests of acoustic telemetry for a portable coastal observatory","docAbstract":"Long-term field tests of a low-cost acoustic telemetry system were carried out at two sites in Massachusetts Bay. At each site, an acoustic Doppler current profiler mounted on a bottom tripod was fitted with an acoustic modem to transmit data to a surface buoy; electronics mounted on the buoy relayed these data to shore via radio modem. The mooring at one site (24 m water depth) was custom-designed for the telemetry application, with a custom designed small buoy, a flexible electro-mechanical buoy to mooring joint using a molded chain connection to the buoy, quick-release electro-mechanical couplings, and dual hydrophones suspended 7 m above the bottom. The surface buoy at the second site (33 m water depth) was a U.S. Coast Guard (USCG) channel buoy fitted with telemetry electronics and clamps to hold the hydrophones. The telemetry was tested in several configurations for a period of about four years. The custom-designed buoy and mooring provided nearly error-free data transmission through the acoustic link under a variety of oceanographic conditions for 261 days at the 24 m site. The electro mechanical joint, cables and couplings required minimal servicing and were very reliable, lasting 862 days deployed before needing repairs. The acoustic communication results from the USCG buoy were poor, apparently due to the hard cobble bottom, noise from the all-steel buoy, and failure of the hydrophone assembly. Access to the USCG buoy at sea required ideal weather. ??2006 IEEE.","largerWorkTitle":"OCEANS 2006","conferenceTitle":"OCEANS 2006","conferenceDate":"18 September 2006 through 21 September 2006","conferenceLocation":"Boston, MA","language":"English","doi":"10.1109/OCEANS.2006.306825","isbn":"1424401151; 9781424401154","usgsCitation":"Martini, M., Butman, B., Ware, J., and Frye, D., 2006, Field tests of acoustic telemetry for a portable coastal observatory, in OCEANS 2006, Boston, MA, 18 September 2006 through 21 September 2006, https://doi.org/10.1109/OCEANS.2006.306825.","costCenters":[],"links":[{"id":204892,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/OCEANS.2006.306825"},{"id":218863,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0fe0e4b0c8380cd53a58","contributors":{"authors":[{"text":"Martini, M.","contributorId":24909,"corporation":false,"usgs":true,"family":"Martini","given":"M.","email":"","affiliations":[],"preferred":false,"id":358669,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butman, B.","contributorId":85580,"corporation":false,"usgs":true,"family":"Butman","given":"B.","email":"","affiliations":[],"preferred":false,"id":358672,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ware, J.","contributorId":65984,"corporation":false,"usgs":true,"family":"Ware","given":"J.","email":"","affiliations":[],"preferred":false,"id":358671,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Frye, D.","contributorId":53084,"corporation":false,"usgs":true,"family":"Frye","given":"D.","email":"","affiliations":[],"preferred":false,"id":358670,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030388,"text":"70030388 - 2006 - Surface waves in the western Taiwan coastal plain from an aftershock of the 1999 Chi-Chi, Taiwan, earthquake","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030388","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Surface waves in the western Taiwan coastal plain from an aftershock of the 1999 Chi-Chi, Taiwan, earthquake","docAbstract":"Significant surface waves were recorded in the western coastal plain (WCP) of Taiwan during the 1999 Chi-Chi, Taiwan, earthquake and its series of aftershocks. We study in detail the surface waves produced by one aftershock (20 September 1999, 18hr 03m 41.16sec, M 6.2) in this paper. We take the Chelungpu-Chukou fault to be the eastern edge of the WCP because it marks a distinct lateral contrast in seismic wave velocities in the upper few kilometers of the surface. For many records from stations within the WCP, body waves and surface waves separate well in both the time domain and the period domain. Long-period (e.g., >2 sec) ground motions in the plain are dominated by surface waves. Significant prograde Rayleigh wave particle motions were observed in the WCP. The observed peak ground velocities are about 3-5 times larger than standard predictions in the central and western part of the plain. Observed response spectra at 3 sec, 4 sec, and 5 sec at the center of the plain can be 15 times larger than standard predictions and 10 times larger than the predictions of Joyner (2000) based on surface wave data from the Los Angeles basin. The strong surface waves were probably generated at the boundary of the WCP and then propagated toward the west, largely along radial directions relative to the epicenter. The geometry of the boundary may have had a slight effect on propagation directions of surface waves. Group velocities of fundamental mode Rayleigh and Love waves are estimated using the multiple filter analysis (MFA) technique and are refined with phase matched filtering (PMF). Group velocities of fundamental mode surface waves range from about 0.7 km/sec to 1.5 km/sec for the phases at periods from 3 sec to 10 sec. One important observation from this study is that the strongest surface waves were recorded in the center of the plain. The specific location of the strongest motions depends largely on the period of surface waves rather than on specific site conditions or plain structures. Accordingly, we conjecture that surface waves could be generated in a wide area close to boundaries of low-velocity sedimentary wave guides. In the case studied in this article the area can be as wide as 30 km (from the Chelungpu fault to the center of the plain). Surface waves converted by P and S waves at different locations would overlap each other and add constructively along their propagation paths. As a result, the surface waves would get stronger and stronger. Beyond a certain distance to the boundary, no more surface waves would be generated. Consequently, no more local surface waves would be superimposed into the invasive surface waves, and the surface waves would tend to decay in amplitude with distance.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120050088","issn":"00371106","usgsCitation":"Wang, G., Tang, G., Boore, D., Van Ness, B.G., Jackson, C., Zhou, X., and Lin, Q., 2006, Surface waves in the western Taiwan coastal plain from an aftershock of the 1999 Chi-Chi, Taiwan, earthquake: Bulletin of the Seismological Society of America, v. 96, no. 3, p. 821-845, https://doi.org/10.1785/0120050088.","startPage":"821","endPage":"845","numberOfPages":"25","costCenters":[],"links":[{"id":211952,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120050088"},{"id":239340,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba167e4b08c986b31f073","contributors":{"authors":[{"text":"Wang, G.-Q.","contributorId":80046,"corporation":false,"usgs":true,"family":"Wang","given":"G.-Q.","email":"","affiliations":[],"preferred":false,"id":426962,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tang, G.-Q.","contributorId":54405,"corporation":false,"usgs":true,"family":"Tang","given":"G.-Q.","email":"","affiliations":[],"preferred":false,"id":426960,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Boore, D.M. 0000-0002-8605-9673","orcid":"https://orcid.org/0000-0002-8605-9673","contributorId":64226,"corporation":false,"usgs":true,"family":"Boore","given":"D.M.","affiliations":[],"preferred":false,"id":426961,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Van Ness, Burbach G. G.","contributorId":41650,"corporation":false,"usgs":true,"family":"Van Ness","given":"Burbach","suffix":"G.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":426959,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jackson, C.R.","contributorId":16136,"corporation":false,"usgs":true,"family":"Jackson","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":426957,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zhou, X.-Y.","contributorId":83712,"corporation":false,"usgs":true,"family":"Zhou","given":"X.-Y.","email":"","affiliations":[],"preferred":false,"id":426963,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lin, Q.-L.","contributorId":17042,"corporation":false,"usgs":true,"family":"Lin","given":"Q.-L.","email":"","affiliations":[],"preferred":false,"id":426958,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70030877,"text":"70030877 - 2006 - Differential response in chick survival to diet in least and crested auklets","interactions":[],"lastModifiedDate":"2017-03-16T10:33:35","indexId":"70030877","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2663,"text":"Marine Ecology Progress Series","active":true,"publicationSubtype":{"id":10}},"title":"Differential response in chick survival to diet in least and crested auklets","docAbstract":"Least auklets Aethia pusilla and crested auklets A. cristatella are abundant planktivorous seabirds found throughout the Bering Sea and are inextricably linked to the secondary productivity of this northern marine ecosystem. We assessed the relationship between productivity and diet in least and crested auklets by examining breeding chronology, daily survival rates (DSR) of chicks, and nestling diet composition at 2 mixed colonies on St. Lawrence Island in the northern Bering Sea during the 2000 to 2002 breeding seasons. Nestlings of both least and crested auklets hatched earlier, had higher survival rates, and were fed more of the large, oceanic copepod Neocalanus cristatus in 2002 compared to the 2 yr of lower chick survival. In contrast, during the year of lowest DSR for both auklet species (2001), the small copepod Calanus marshallae was more prevalent in the diet of least auklets and the mid-sized copepod N. flemingeri was more prevalent in the diet of crested auklets compared to the other 2 yr. The prevalence of oceanic copepods in meals fed to chicks explained much of the annual variation in DSR in least auklets. Interannual differences in timing of nest initiation, nest survival, and diet of least and crested auklets may be associated with the strength of the cold, nutrient-rich Anadyr Current, which passes in close proximity to St. Lawrence Island and has important influences on zooplankton productivity and distribution. Auklet productivity and diet composition may serve as key indicators in the overall effort to monitor the impact of climate change on the productivity of the Bering Sea.
","language":"English","publisher":"Inter Research Science Center","doi":"10.3354/meps308279","issn":"01718630","usgsCitation":"Gall, A.E., Roby, D., Irons, D., and Rose, I., 2006, Differential response in chick survival to diet in least and crested auklets: Marine Ecology Progress Series, v. 308, p. 279-291, https://doi.org/10.3354/meps308279.","startPage":"279","endPage":"291","numberOfPages":"13","costCenters":[],"links":[{"id":477409,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/meps308279","text":"Publisher Index Page"},{"id":238896,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"308","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0100e4b0c8380cd4fa36","contributors":{"authors":[{"text":"Gall, Adrian E.","contributorId":54396,"corporation":false,"usgs":false,"family":"Gall","given":"Adrian","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":429049,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roby, D.D. 0000-0001-9844-0992","orcid":"https://orcid.org/0000-0001-9844-0992","contributorId":70944,"corporation":false,"usgs":true,"family":"Roby","given":"D.D.","affiliations":[],"preferred":false,"id":429050,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Irons, D.B.","contributorId":52922,"corporation":false,"usgs":true,"family":"Irons","given":"D.B.","email":"","affiliations":[],"preferred":false,"id":429048,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rose, I.C.","contributorId":25355,"corporation":false,"usgs":true,"family":"Rose","given":"I.C.","email":"","affiliations":[],"preferred":false,"id":429047,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030394,"text":"70030394 - 2006 - Bacterial biomarkers thermally released from dissolved organic matter","interactions":[],"lastModifiedDate":"2012-03-12T17:21:02","indexId":"70030394","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Bacterial biomarkers thermally released from dissolved organic matter","docAbstract":"Hopane biomarker products were detected using microscale sealed vessel (MSSV) pyrolysis gas chromatography-mass spectrometry (GC-MS) analysis of dissolved organic matter from natural aquatic systems colonised by bacterial populations. MSSV pyrolysis can reduce the polyhydroxylated alkyl side chain of bacteriohopanepolyols, yielding saturated hopane products which are more amenable to GC-MS detection than their functionalised precursors. This example demonstrates how the thermal conditions of MSSV pyrolysis can reduce the biologically-inherited structural functionality of naturally occurring organic matter such that additional structural fragments can be detected using GC methods. This approach complements traditional analytical pyrolysis methods by providing additional speciation information useful for establishing the structures and source inputs of recent or extant organic material. ?? 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Organic Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.orggeochem.2005.12.009","issn":"01466380","usgsCitation":"Greenwood, P., Leenheer, J., McIntyre, C., Berwick, L., and Franzmann, P., 2006, Bacterial biomarkers thermally released from dissolved organic matter: Organic Geochemistry, v. 37, no. 5, p. 597-609, https://doi.org/10.1016/j.orggeochem.2005.12.009.","startPage":"597","endPage":"609","numberOfPages":"13","costCenters":[],"links":[{"id":212038,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.orggeochem.2005.12.009"},{"id":239445,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ef9be4b0c8380cd4a350","contributors":{"authors":[{"text":"Greenwood, P.F.","contributorId":106710,"corporation":false,"usgs":true,"family":"Greenwood","given":"P.F.","email":"","affiliations":[],"preferred":false,"id":426991,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leenheer, J.A.","contributorId":75123,"corporation":false,"usgs":true,"family":"Leenheer","given":"J.A.","affiliations":[],"preferred":false,"id":426989,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McIntyre, C.","contributorId":66896,"corporation":false,"usgs":true,"family":"McIntyre","given":"C.","email":"","affiliations":[],"preferred":false,"id":426988,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Berwick, L.","contributorId":98112,"corporation":false,"usgs":true,"family":"Berwick","given":"L.","email":"","affiliations":[],"preferred":false,"id":426990,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Franzmann, P.D.","contributorId":18175,"corporation":false,"usgs":true,"family":"Franzmann","given":"P.D.","email":"","affiliations":[],"preferred":false,"id":426987,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030392,"text":"70030392 - 2006 - Population dynamics of zebra mussels Dreissena polymorpha (Pallas, 1771) during the initial invasion of the Upper Mississippi River, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030392","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2393,"text":"Journal of Molluscan Studies","active":true,"publicationSubtype":{"id":10}},"title":"Population dynamics of zebra mussels Dreissena polymorpha (Pallas, 1771) during the initial invasion of the Upper Mississippi River, USA","docAbstract":"The aim of this study was to document and model the population dynamics of zebra mussels Dreissena polymorpha (Pallas, 1771) in Pool 8 of the Upper Mississippi River (UMR), USA, for five consecutive years (1992-1996) following their initial discovery in September 1991. Artificial substrates (concrete blocks, 0.49 m2 surface area) were deployed on or around the first of May at two sites within each of two habitat types (main channel border and contiguous backwater). Blocks were removed monthly (30 ?? 10 d) from the end of May to the end of October to obtain density and growth information. Some blocks deployed in May 1995 were retrieved in April 1996 to obtain information about overwinter growth and survival. The annual density of zebra mussels in Pool 8 of the UMR increased from 3.5/m2 in 1992 to 14,956/m 2 in 1996. The average May-October growth rate of newly recruited individuals, based on a von Bertalanffy growth model fitted to monthly shell-length composition data, was 0.11 mm/d. Model estimates of the average survival rate varied from 21 to 100% per month. Estimated recruitment varied substantially among months, with highest levels occurring in September-October of 1994 and 1996, and in July of 1995. Recruitment and density in both habitat types increased by two orders of magnitude in 1996. Follow-up studies will be necessary to assess the long-term stability of zebra mussel populations in the UMR; this study provides the critical baseline information needed for those future comparisons. ?? Published by Oxford University Press on behalf of The Malacological Society of London 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Molluscan Studies","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1093/mollus/eyi063","issn":"02601230","usgsCitation":"Cope, W., Bartsch, M., and Hightower, J., 2006, Population dynamics of zebra mussels Dreissena polymorpha (Pallas, 1771) during the initial invasion of the Upper Mississippi River, USA: Journal of Molluscan Studies, v. 72, no. 2, p. 179-188, https://doi.org/10.1093/mollus/eyi063.","startPage":"179","endPage":"188","numberOfPages":"10","costCenters":[],"links":[{"id":477443,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/mollus/eyi063","text":"Publisher Index Page"},{"id":212006,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1093/mollus/eyi063"},{"id":239408,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"72","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7d5de4b0c8380cd79ed5","contributors":{"authors":[{"text":"Cope, W.G.","contributorId":71918,"corporation":false,"usgs":true,"family":"Cope","given":"W.G.","email":"","affiliations":[],"preferred":false,"id":426983,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bartsch, M.R.","contributorId":42908,"corporation":false,"usgs":true,"family":"Bartsch","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":426982,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hightower, J.E.","contributorId":16605,"corporation":false,"usgs":true,"family":"Hightower","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":426981,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035279,"text":"70035279 - 2006 - Unravelling the structural control of mississippi valley-type deposits and prospects in carbonate sequences of the Western Canada Sedimentary Basin","interactions":[],"lastModifiedDate":"2012-03-12T17:21:53","indexId":"70035279","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1126,"text":"Bulletin of the Geological Survey of Canada","active":true,"publicationSubtype":{"id":10}},"title":"Unravelling the structural control of mississippi valley-type deposits and prospects in carbonate sequences of the Western Canada Sedimentary Basin","docAbstract":"Re-examination of selected MVT outcrops and cores in the Interior Plains and Rocky Moun-tains of Alberta, corroborated with previous paragenetic, isotopic and structural data, suggests Laramide structural channelling of dolomitizing and mineralizing fluids into strained carbonate rocks. At Pine Point, extensional faults underlying the trends of MVT ore bodies and brittle faults overprinting the Great Slave Lake Shear Zone define apinnate fault geometry and appear to be kinematically linked. Chemical and isotopic characteristics of MVT parental fluids are consistent with seawater and brine convection within fault-confined verticalaquifers, strong water-basement rock interaction, metalleaching from the basement, and focused release of hydrothermal fluids within linear zones of strained carbonate caprocks. Zones of recurrent strain in the basement and a cap of carbonate strata constitute the critical criteria for MVTexploration target selection in the WCSB.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Geological Survey of Canada","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00687626","usgsCitation":"Pana, D., 2006, Unravelling the structural control of mississippi valley-type deposits and prospects in carbonate sequences of the Western Canada Sedimentary Basin: Bulletin of the Geological Survey of Canada, no. 591, p. 255-304.","startPage":"255","endPage":"304","numberOfPages":"50","costCenters":[],"links":[{"id":243202,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"591","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbce0e4b08c986b328e50","contributors":{"authors":[{"text":"Pana, D.","contributorId":34739,"corporation":false,"usgs":true,"family":"Pana","given":"D.","email":"","affiliations":[],"preferred":false,"id":449996,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70030883,"text":"70030883 - 2006 - Estimation of pseudo-2D shear-velocity section by inversion of high frequency surface waves","interactions":[],"lastModifiedDate":"2012-03-12T17:21:04","indexId":"70030883","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3317,"text":"SEG Technical Program Expanded Abstracts","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of pseudo-2D shear-velocity section by inversion of high frequency surface waves","docAbstract":"A scheme to generate pseudo-2D shear-velocity sections with high horizontal resolution and low field cost by inversion of high frequency surface waves is presented. It contains six steps. The key step is the joint method of crossed correlation and phase shift scanning. This joint method chooses only two traces to generate image of dispersion curve. For Rayleigh-wave dispersion is most important for estimation of near-surface shear-wave velocity, it can effectively obtain reliable images of dispersion curves with a couple of traces. The result of a synthetic example shows the feasibility of this scheme. ?? 2005 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"SEG Technical Program Expanded Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.2369807","issn":"10523812","usgsCitation":"Luo, Y., Liu, J., Xia, J., Xu, Y., and Liu, Q., 2006, Estimation of pseudo-2D shear-velocity section by inversion of high frequency surface waves: SEG Technical Program Expanded Abstracts, v. 25, no. 1, p. 1510-1514, https://doi.org/10.1190/1.2369807.","startPage":"1510","endPage":"1514","numberOfPages":"5","costCenters":[],"links":[{"id":211636,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.2369807"},{"id":238963,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-10-06","publicationStatus":"PW","scienceBaseUri":"505a0ba2e4b0c8380cd527ed","contributors":{"authors":[{"text":"Luo, Y.","contributorId":28417,"corporation":false,"usgs":true,"family":"Luo","given":"Y.","email":"","affiliations":[],"preferred":false,"id":429074,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, J.","contributorId":23672,"corporation":false,"usgs":false,"family":"Liu","given":"J.","affiliations":[],"preferred":false,"id":429073,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Xia, J.","contributorId":63513,"corporation":false,"usgs":true,"family":"Xia","given":"J.","email":"","affiliations":[],"preferred":false,"id":429076,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Xu, Y.","contributorId":47816,"corporation":false,"usgs":true,"family":"Xu","given":"Y.","email":"","affiliations":[],"preferred":false,"id":429075,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Liu, Q.","contributorId":17827,"corporation":false,"usgs":true,"family":"Liu","given":"Q.","email":"","affiliations":[],"preferred":false,"id":429072,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030944,"text":"70030944 - 2006 - Structural fabrics, mineralization and Lamaride kinematics of the Idaho Springs-Ralston shear zone, Colorado mineral belt and central Front Range uplift","interactions":[],"lastModifiedDate":"2017-09-26T10:04:06","indexId":"70030944","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2789,"text":"Mountain Geologist","active":true,"publicationSubtype":{"id":10}},"title":"Structural fabrics, mineralization and Lamaride kinematics of the Idaho Springs-Ralston shear zone, Colorado mineral belt and central Front Range uplift","docAbstract":"The Idaho Springs and Central City mining districts form the central portion of a structurally controlled hydrothermal precious- and base-metal vein system in the Front Range of the northeast-trending Colorado Mineral Belt. Three new 40Ar/39Ar plateau ages on hydrothermal sericite indicate the veins formed during the Laramide orogeny between 65.4??1.5 - 61.9??1.3 Ma. We compile structural geologic data from surface geological maps, subsurface mine maps, and theses for analysis using modern graphical methods and integration into models of formation of economic mineral deposits. Structural data sets, produced in the 1950s and 1960s by the U.S. Geological Survey, are compiled for fabric elements, including metamorphic foliations, fold axial trends, major brittle fault zones, quartz and precious- and base-metal veins and fault veins, Tertiary dikes, and joints. These fabric elements are plotted on equal-area projections and analyzed for mean fabric orientations. Strike-slip fault-vein sets are mostly parallel or sub-parallel, and not conjugate as interpreted by previous work; late-stage, normal-slip fault veins possibly show a pattern indicative of triaxial strain. Fault-slip kinematic analysis was used to model the trend of the Laramide maximum horizontal stress axis, or compression direction, and to determine compatibility of opening and shear motions within a single stress field. The combined-model maximum compression direction for all strike slip fault veins is ???068??, which is consistent with published Laramide compression directions of ???064?? (mean of 23 regional models) and ???072?? for the Front Range uplift. The orientations of fabric elements were analyzed for mechanical and kinematic compatibility with opening, and thus permeability enhancement, in the modeled regional east-northeast, Laramide compression direction. The fabric orientation analysis and paleostress modeling show that structural permeability during mineralization was enhanced along pre-existing metamorphic foliations and fold axial planes. Large orientation dispersion in most fabric elements likely caused myriad potential pathways for permeability. The dominant orientations of opening and shear mode structures are consistent with a sub-parallel network of structures that formed in the Laramide east-northeast compression direction. The results presented demonstrate the importance of using mechanical and kinematic theory integrated with contemporary ideas of permeability structure to better understand the coupled nature of fluid flow, mineral deposition, stress, and strain. Further, the results demonstrate that there is significant internal strain within this basement-cored uplift that was localized by optimally oriented pre-existing structures in a regional stress field.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mountain Geologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0027254X","usgsCitation":"Caine, J.S., Nelson, E., Beach, S., and Layer, P., 2006, Structural fabrics, mineralization and Lamaride kinematics of the Idaho Springs-Ralston shear zone, Colorado mineral belt and central Front Range uplift: Mountain Geologist, v. 43, no. 1, p. 1-24.","startPage":"1","endPage":"24","numberOfPages":"24","costCenters":[],"links":[{"id":238867,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9be8e4b08c986b31d178","contributors":{"authors":[{"text":"Caine, Jonathan S. 0000-0002-7269-6989 jscaine@usgs.gov","orcid":"https://orcid.org/0000-0002-7269-6989","contributorId":1272,"corporation":false,"usgs":true,"family":"Caine","given":"Jonathan","email":"jscaine@usgs.gov","middleInitial":"S.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":false,"id":429331,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nelson, E.P.","contributorId":53577,"corporation":false,"usgs":true,"family":"Nelson","given":"E.P.","email":"","affiliations":[],"preferred":false,"id":429330,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Beach, S.T.","contributorId":40012,"corporation":false,"usgs":true,"family":"Beach","given":"S.T.","email":"","affiliations":[],"preferred":false,"id":429328,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Layer, P.W.","contributorId":42398,"corporation":false,"usgs":true,"family":"Layer","given":"P.W.","email":"","affiliations":[],"preferred":false,"id":429329,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030976,"text":"70030976 - 2006 - Future trends in transport and fate of diffuse contaminants in catchments, with special emphasis on stable isotope applications","interactions":[],"lastModifiedDate":"2012-03-12T17:21:15","indexId":"70030976","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Future trends in transport and fate of diffuse contaminants in catchments, with special emphasis on stable isotope applications","docAbstract":"A summary is provided of the first of a series of proposed Integrated Science Initiative workshops supported by the UNESCO International Hydrological Programme. The workshop brought together hydrologists, environmental chemists, microbiologists, stable isotope specialists and natural resource managers with the purpose of communicating new ideas on ways to assess microbial degradation processes and reactive transport at catchment scales. The focus was on diffuse contamination at catchment scales and the application of compound-specific isotope analysis (CSIA) in the assessment of biological degradation processes of agrochemicals. Major outcomes were identifying the linkage between water residence time distribution and rates of contaminant degradation, identifying the need for better information on compound specific microbial degradation isotope fractionation factors and the potential of CSIA in identifying key degradative processes. In the natural resource management context, a framework was developed where CSIA techniques were identified as practically unique in their capacity to serve as distributed integrating indicators of process across a range of scales (micro to diffuse) of relevance to the problem of diffuse pollution assessment. Copyright ?? 2006 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.6074","issn":"08856087","usgsCitation":"Turner, J., Albrechtsen, H., Bonell, M., Duguet, J., Harris, B., Meckenstock, R., McGuire, K., Moussa, R., Peters, N., Richnow, H., Sherwood-Lollar, B., Uhlenbrook, S., and van, L.H., 2006, Future trends in transport and fate of diffuse contaminants in catchments, with special emphasis on stable isotope applications: Hydrological Processes, v. 20, no. 1, p. 205-213, https://doi.org/10.1002/hyp.6074.","startPage":"205","endPage":"213","numberOfPages":"9","costCenters":[],"links":[{"id":211536,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6074"},{"id":238838,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1438e4b0c8380cd54960","contributors":{"authors":[{"text":"Turner, J.","contributorId":24565,"corporation":false,"usgs":true,"family":"Turner","given":"J.","affiliations":[],"preferred":false,"id":429468,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Albrechtsen, H.-J.","contributorId":20150,"corporation":false,"usgs":true,"family":"Albrechtsen","given":"H.-J.","email":"","affiliations":[],"preferred":false,"id":429466,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bonell, M.","contributorId":82041,"corporation":false,"usgs":true,"family":"Bonell","given":"M.","email":"","affiliations":[],"preferred":false,"id":429473,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Duguet, J.-P.","contributorId":97703,"corporation":false,"usgs":true,"family":"Duguet","given":"J.-P.","email":"","affiliations":[],"preferred":false,"id":429476,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Harris, B.","contributorId":67723,"corporation":false,"usgs":true,"family":"Harris","given":"B.","email":"","affiliations":[],"preferred":false,"id":429470,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Meckenstock, R.","contributorId":84560,"corporation":false,"usgs":true,"family":"Meckenstock","given":"R.","email":"","affiliations":[],"preferred":false,"id":429474,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McGuire, K.","contributorId":63219,"corporation":false,"usgs":true,"family":"McGuire","given":"K.","email":"","affiliations":[],"preferred":false,"id":429469,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Moussa, R.","contributorId":72199,"corporation":false,"usgs":true,"family":"Moussa","given":"R.","email":"","affiliations":[],"preferred":false,"id":429472,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Peters, N.","contributorId":91297,"corporation":false,"usgs":true,"family":"Peters","given":"N.","email":"","affiliations":[],"preferred":false,"id":429475,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Richnow, H.H.","contributorId":70997,"corporation":false,"usgs":true,"family":"Richnow","given":"H.H.","email":"","affiliations":[],"preferred":false,"id":429471,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Sherwood-Lollar, B.","contributorId":8674,"corporation":false,"usgs":true,"family":"Sherwood-Lollar","given":"B.","email":"","affiliations":[],"preferred":false,"id":429465,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Uhlenbrook, S.","contributorId":24169,"corporation":false,"usgs":true,"family":"Uhlenbrook","given":"S.","email":"","affiliations":[],"preferred":false,"id":429467,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"van, Lanen H.","contributorId":6658,"corporation":false,"usgs":true,"family":"van","given":"Lanen","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":429464,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70030245,"text":"70030245 - 2006 - Continuous resistivity profiling to delineate submarine groundwater discharge - Examples and limitations","interactions":[],"lastModifiedDate":"2019-10-17T07:08:41","indexId":"70030245","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2610,"text":"Leading Edge (Tulsa, OK)","active":true,"publicationSubtype":{"id":10}},"title":"Continuous resistivity profiling to delineate submarine groundwater discharge - Examples and limitations","docAbstract":"Aquifer-ocean interaction, saline intrusion, and submarine groundwater discharge (SGD) are emerging topics in hydrology and oceanography with important implications for water-resource management and estuarine ecology. Although the threat of saltwater intrusion has long been recognized in coastal areas, SGD has, until recently, received much less attention. It is clear that SGD constitutes a major nutrient flux to coastal waters, with implications for estuarine ecology, eutrophication, and loss of coral reefs; however, fundamental questions regarding SGD remain unanswered: What are the spatial and temporal distributions of SGD offshore? How do seasonal and storm-related variations in aquifer recharge affect SGD flux and nutrient loading? What controls do aquifer structure and heterogeneity impose? How are SGD and saline recirculation related? Geophysical methods can provide insights to help answer these questions and improve the understanding of this intriguing and environmentally relevant hydrologic phenomenon.
","language":"English","publisher":"Society of Exploration Geophysicists","doi":"10.1190/1.2210056","issn":"1070485X","usgsCitation":"Day-Lewis, F., White, E., Johnson, C., Lane, J.W., and Belaval, M., 2006, Continuous resistivity profiling to delineate submarine groundwater discharge - Examples and limitations: Leading Edge (Tulsa, OK), v. 25, no. 6, p. 724-728, https://doi.org/10.1190/1.2210056.","productDescription":"5 p.","startPage":"724","endPage":"728","numberOfPages":"5","costCenters":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"links":[{"id":239160,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fa5fe4b0c8380cd4da94","contributors":{"authors":[{"text":"Day-Lewis, F. D. 0000-0003-3526-886X","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":35773,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"F. D.","affiliations":[],"preferred":false,"id":426282,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"White, E.A.","contributorId":53034,"corporation":false,"usgs":true,"family":"White","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":426284,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, C. D.","contributorId":8120,"corporation":false,"usgs":true,"family":"Johnson","given":"C. D.","affiliations":[],"preferred":false,"id":426280,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lane, J. W.","contributorId":31431,"corporation":false,"usgs":true,"family":"Lane","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":426281,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Belaval, M.","contributorId":45898,"corporation":false,"usgs":true,"family":"Belaval","given":"M.","affiliations":[],"preferred":false,"id":426283,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":1003986,"text":"1003986 - 2006 - Persistence of Pasteurella multocida in wetlands following avian cholera outbreaks","interactions":[],"lastModifiedDate":"2017-12-21T11:21:20","indexId":"1003986","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Persistence of Pasteurella multocida in wetlands following avian cholera outbreaks","docAbstract":"Avian cholera, caused by Pasteurella multocida, affects waterbirds across North America and occurs worldwide among various avian species. Once an epizootic begins, contamination of the wetland environment likely facilitates the transmission of P. multocida to susceptible birds. To evaluate the ability of P. multocida serotype-1, the most common serotype associated with avian cholera in waterfowl in western and central North America, to persist in wetlands and to identify environmental factors associated with its persistence, we collected water and sediment samples from 23 wetlands during winters and springs of 1996a??99. These samples were collected during avian cholera outbreaks and for up to 13 wk following initial sampling. We recovered P. multocida from six wetlands that were sampled following the initial outbreaks, but no P. multocida was isolated later than 7 wk after the initial outbreak sampling. We found no significant relationship between the probability of recovery of P. multocida during resampling and the abundance of the bacterium recovered during initial sampling, the substrate from which isolates were collected, isolate virulence, or water quality conditions previously suggested to be related to the abundance or survival of P. multocida. Our results indicate that wetlands are unlikely to serve as a long-term reservoir for P. multocida because the bacterium does not persist in wetlands for long time periods following avian cholera outbreaks.
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Three groups of terranes are identified: 1) the western arc terranes, 2) the eastern arc terranes, and 3) the Khida terrane. The Khida terrane is the only terrane composed of pre-Neoproterozoic continental crust. The western arc terranes are of oceanic arc affinity, and have the least radiogenic Pb and Sr and most radiogenic Nd isotopic compositions and some of the lowest ??18O values of any rocks of the Saudi Arabian Shield. Although some previous studies have characterized the eastern arc terranes as of continental affinity, this study shows that they too are composed of Neoproterozoic oceanic arcs, although their sources have slightly elevated 208Pb/204Pb, Nd, Sri, and ??18O values compared to the western arc terranes. These data suggest that either the isotopic composition of the mantle source for the western arc terranes is more depleted than that of the eastern arc terranes or the eastern arc terranes have been mixed with a small amount of cratonic source material, or both. We further elaborate on the Hulayfah-Ad Dafinah fault zone as a major boundary within the Saudi Arabian portion of the East African Orogen. With further study, its northern extension may be shown to pass through what has been defined as the Hail terrane, and its southern extension appears to lie under cover east of the Tathlith-Malahah terrane and extend into Yemen. It may represent the collision zone between East and West Gondwana, and at the very least it is an important suture between groups of arc terranes of contrasting isotopic composition caught between two converging continents.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemgeo.2005.09.019","issn":"00092541","usgsCitation":"Stoeser, D.B., and Frost, C., 2006, Nd, Pb, Sr, and O isotopic characterization of Saudi Arabian Shield terranes: Chemical Geology, v. 226, no. 3-4, p. 163-188, https://doi.org/10.1016/j.chemgeo.2005.09.019.","startPage":"163","endPage":"188","numberOfPages":"26","costCenters":[],"links":[{"id":211777,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2005.09.019"},{"id":239130,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"226","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a63c4e4b0c8380cd7269a","contributors":{"authors":[{"text":"Stoeser, D. B.","contributorId":18735,"corporation":false,"usgs":true,"family":"Stoeser","given":"D.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":426755,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frost, C.D.","contributorId":20900,"corporation":false,"usgs":true,"family":"Frost","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":426756,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030247,"text":"70030247 - 2006 - State summaries: Indiana","interactions":[],"lastModifiedDate":"2012-03-12T17:21:02","indexId":"70030247","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2755,"text":"Mining Engineering","active":true,"publicationSubtype":{"id":10}},"title":"State summaries: Indiana","docAbstract":"In 2005, the Indiana industrial minerals industry generated $789 million, a record high for the state and an increase of 2.2% from 2004. Among all states, Indiana ranked 24th. Mineral commodities produced in the state included crushed limestone and dolomite, construction sand and gravel, industrial sand, dimension limestone, dimension sandstone, gypsum, common clay and shale, freshwater pearls, peat, lime, and masonry and portland cement.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mining Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00265187","usgsCitation":"Shaffer, K., 2006, State summaries: Indiana: Mining Engineering, v. 58, no. 5, p. 90-92.","startPage":"90","endPage":"92","numberOfPages":"3","costCenters":[],"links":[{"id":239193,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"58","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b96d6e4b08c986b31b737","contributors":{"authors":[{"text":"Shaffer, K.R.","contributorId":35945,"corporation":false,"usgs":true,"family":"Shaffer","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":426287,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70030334,"text":"70030334 - 2006 - Comparative performance of fixed-film biological filters: Application of reactor theory","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70030334","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":852,"text":"Aquacultural Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Comparative performance of fixed-film biological filters: Application of reactor theory","docAbstract":"Nitrification is classified as a two-step consecutive reaction where R1 represents the rate of formation of the intermediate product NO2-N and R2 represents the rate of formation of the final product NO3-N. The relative rates of R1 and R2 are influenced by reactor type characterized hydraulically as plug-flow, plug-flow with dispersion and mixed-flow. We develop substrate conversion models for fixed-film biofilters operating in the first-order kinetic regime based on application of chemical reactor theory. Reactor type, inlet conditions and the biofilm kinetic constants Ki (h-1) are used to predict changes in NH4-N, NO2-N, NO3-N and BOD5. The inhibiting effects of the latter on R1 and R2 were established based on the ?? relation, e.g.:{A formula is presented}where BOD5,max is the concentration that causes nitrification to cease and N is a variable relating Ki to increasing BOD5. Conversion models were incorporated in spreadsheet programs that provided steady-state concentrations of nitrogen and BOD5 at several points in a recirculating aquaculture system operating with input values for fish feed rate, reactor volume, microscreen performance, make-up and recirculating flow rates. When rate constants are standardized, spreadsheet use demonstrates plug-flow reactors provide higher rates of R1 and R2 than mixed-flow reactors thereby reducing volume requirements for target concentrations of NH4-N and NO2-N. The benefit provided by the plug-flow reactor varies with hydraulic residence time t as well as the effective vessel dispersion number, D/??L. Both reactor types are capable of providing net increases in NO2-N during treatment but the rate of decrease in the mixed-flow case falls well behind that predicted for plug-flow operation. We show the potential for a positive net change in NO2-N increases with decreases in the dimensionless ratios K2, (R2 )/K1,( R1 ) and [NO2-N]/[NH4-N] and when the product K1, (R1) t provides low to moderate NH4-N conversions. Maintaining high levels of the latter reduces the effective reactor utilization rate (%) defined here as (RNavg/RNmax)100 where RNavg is the mean reactive nitrogen concentration ([NH4-N] + [NO2-N]) within the reactor, and RNmax represents the feed concentration of the same. Low utilization rates provide a hedge against unexpected increases in substrate loading and reduce water pumping requirements but force use of elevated reactor volumes. Further ?? effects on R1 and R2 can be reduced through use of a tanks-in-series versus a single mixed-flow reactor configuration and by improving the solids removal efficiency of microscreen treatment.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquacultural Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.aquaeng.2005.03.006","issn":"01448609","usgsCitation":"Watten, B., and Sibrell, P., 2006, Comparative performance of fixed-film biological filters: Application of reactor theory: Aquacultural Engineering, v. 34, no. 3, p. 198-213, https://doi.org/10.1016/j.aquaeng.2005.03.006.","startPage":"198","endPage":"213","numberOfPages":"16","costCenters":[],"links":[{"id":212145,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.aquaeng.2005.03.006"},{"id":239582,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f821e4b0c8380cd4cecd","contributors":{"authors":[{"text":"Watten, B.J. 0000-0002-2227-8623","orcid":"https://orcid.org/0000-0002-2227-8623","contributorId":11537,"corporation":false,"usgs":true,"family":"Watten","given":"B.J.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":426733,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sibrell, P.L.","contributorId":13343,"corporation":false,"usgs":true,"family":"Sibrell","given":"P.L.","affiliations":[],"preferred":false,"id":426734,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030792,"text":"70030792 - 2006 - Evidence for hydraulic heterogeneity and anisotropy in the mostly carbonate Prairie du Chien Group, southeastern Minnesota, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:15","indexId":"70030792","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3368,"text":"Sedimentary Geology","active":true,"publicationSubtype":{"id":10}},"title":"Evidence for hydraulic heterogeneity and anisotropy in the mostly carbonate Prairie du Chien Group, southeastern Minnesota, USA","docAbstract":"In southeastern Minnesota, Paleozoic bedrock aquifers have typically been represented in groundwater flow simulations as isotropic, porous media. To obtain a more accurate hydrogeologic characterization of the Ordovician Prairie du Chien Group, a new approach was tested, combining detailed geologic observations, particularly of secondary porosity, with hydraulic data. Lithologic observations of the depositional and erosional history of the carbonate-dominated bedrock unit constrained characterization of both primary (matrix) and secondary porosity from outcrops and core. Hydrostratigraphic data include outcrop and core observations along with core plug permeability tests. Hydrogeologic data include discrete interval aquifer tests, borehole geophysics, water chemistry and isotope data, and dye trace studies. Results indicate that the Prairie du Chien Group can be subdivided into the Shakopee aquifer at the top, consisting of interbedded dolostone, sandstone and shale, and the underlying Oneota confining unit consisting of thickly bedded dolostone. The boundary between these two hydrogeologic units does not correspond to lithostratigraphic boundaries, as commonly presumed. Groundwater flow in the Shakopee aquifer is primarily through secondary porosity features, most commonly solution-enlarged bedding planes and sub-horizontal and vertical fractures. Regional scale preferential development of cavernous porosity and permeability along specific stratigraphic intervals that correspond to paleokarst were also identified, along with a general depiction of the distribution of vertical and horizontal fractures. The combination of outcrop and core investigations, along with borehole geophysics, discrete interval aquifer tests, water chemistry and isotope data and dye trace studies show that the Prairie du Chien Group is best represented hydrogeologically as heterogeneous and anisotropic. Furthermore, heterogeneity and anisotropy within the Prairie du Chien Group is mappable at a regional scale (>15,000 km2). ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sedimentary Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.sedgeo.2005.11.007","issn":"00370738","usgsCitation":"Tipping, R., Runkel, A.C., Alexander, E., Alexander, S., and Green, J., 2006, Evidence for hydraulic heterogeneity and anisotropy in the mostly carbonate Prairie du Chien Group, southeastern Minnesota, USA: Sedimentary Geology, v. 184, no. 3-4, p. 305-330, https://doi.org/10.1016/j.sedgeo.2005.11.007.","startPage":"305","endPage":"330","numberOfPages":"26","costCenters":[],"links":[{"id":211353,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.sedgeo.2005.11.007"},{"id":238629,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"184","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0d43e4b0c8380cd52ee9","contributors":{"authors":[{"text":"Tipping, R.G.","contributorId":67272,"corporation":false,"usgs":true,"family":"Tipping","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":428705,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Runkel, Anthony C.","contributorId":63186,"corporation":false,"usgs":true,"family":"Runkel","given":"Anthony","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":428704,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alexander, E.C. Jr.","contributorId":94062,"corporation":false,"usgs":true,"family":"Alexander","given":"E.C.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":428707,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Alexander, S.C.","contributorId":9853,"corporation":false,"usgs":true,"family":"Alexander","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":428703,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Green, J.A.","contributorId":75753,"corporation":false,"usgs":true,"family":"Green","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":428706,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030405,"text":"70030405 - 2006 - Isoeugenol concentrations in rainbow trout (Oncorhynchus mykiss) skin-on fillet tissue after exposure to AQUI-S™ at different temperatures, durations, and concentrations","interactions":[],"lastModifiedDate":"2015-04-27T10:01:40","indexId":"70030405","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":853,"text":"Aquaculture","active":true,"publicationSubtype":{"id":10}},"title":"Isoeugenol concentrations in rainbow trout (Oncorhynchus mykiss) skin-on fillet tissue after exposure to AQUI-S™ at different temperatures, durations, and concentrations","docAbstract":"AQUI-S™ is a fish anesthetic/sedative approved for use in several countries including Australia, Chile, and New Zealand and is being pursued for use in the United States. Legal use of AQUI-S™ as an anesthetic in U.S. fish culture depends on approval by the U.S. Food and Drug Administration (FDA). To gain approval in the United States, a number of drug attributes must be characterized including (1) depletion of a drug's total residues from edible fillet tissue taken from exposed fish and (2) depletion of one primary drug residue (a marker residue) from the fillet tissue. The marker residue is selected on the basis of data generated during the total residue depletion study. Characterizing marker residue depletion allows the FDA to establish a withdrawal time for exposed fish ensuring total residue concentrations reach safe levels before fish are made available for human consumption in the U.S. Before an AQUI-S™ total residue depletion study could be conducted with rainbow trout (Oncorhynchus mykiss), the exposure parameters (water temperature, isoeugenol concentration, and exposure duration) that generate the greatest total AQUI-S™ residues in fillet tissue need to be determined.
\nRainbow trout were exposed to AQUI-S™ in water temperatures of 7, 12, and 17 °C in one of two static exposure regimens: (1) AQUI-S™ concentrations of 14 mg/L (nominal concentration) with an exposure duration of 60 min or (2) AQUI-S™ concentrations of 34 mg/L (nominal concentration) with an exposure duration of 10 min (exposure conditions based on probable U.S. use regimens). Immediately after the end of an exposure, fish were rinsed, sacrificed, and skin-on fillets removed. The fillets were homogenized with dry ice, the homogenate extracted with acetonitrile, and extracts analyzed for isoeugenol (the active ingredient in AQUI-S™) by liquid chromatography with absorbance detection.
\nAt common water temperatures, the tissue concentration of isoeugenol in fillet tissue from fish exposed to 14-mg/L AQUI-S™ for 60 min was significantly greater than the isoeugenol concentration in fillet tissue from fish exposed to 34-mg/L AQUI-S™ for 10 min (P < 0.01). The isoeugenol concentration (78.8 μg/g) found in fillet tissue from fish exposed to 14-mg/L AQUI-S™ for 60 min at 17 °C was significantly greater than the isoeugenol tissue concentration (57.3 μg/g) generated at 7 °C (P < 0.01), but was not significantly greater than the isoeugenol tissue concentration (70.7 μg/g) generated at 12 °C (P = 0.22). AQUI-S™ exposure regimens and exposure temperatures can significantly impact drug residue concentrations in fillet tissue.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.aquaculture.2005.09.028","issn":"00448486","usgsCitation":"Meinertz, J.R., Greseth, S.L., Schreier, T.M., Bernardy, J.A., and Gingerich, W.H., 2006, Isoeugenol concentrations in rainbow trout (Oncorhynchus mykiss) skin-on fillet tissue after exposure to AQUI-S™ at different temperatures, durations, and concentrations: Aquaculture, v. 254, no. 1-4, p. 347-354, https://doi.org/10.1016/j.aquaculture.2005.09.028.","productDescription":"8 p.","startPage":"347","endPage":"354","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":239064,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211720,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.aquaculture.2005.09.028"}],"volume":"254","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3f3de4b0c8380cd64390","contributors":{"authors":[{"text":"Meinertz, Jeffery R. 0000-0002-8855-2648 jmeinertz@usgs.gov","orcid":"https://orcid.org/0000-0002-8855-2648","contributorId":2495,"corporation":false,"usgs":true,"family":"Meinertz","given":"Jeffery","email":"jmeinertz@usgs.gov","middleInitial":"R.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":427025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Greseth, Shari L.","contributorId":105681,"corporation":false,"usgs":true,"family":"Greseth","given":"Shari","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":427029,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schreier, Theresa M. 0000-0001-7722-6292 tschreier@usgs.gov","orcid":"https://orcid.org/0000-0001-7722-6292","contributorId":3344,"corporation":false,"usgs":true,"family":"Schreier","given":"Theresa","email":"tschreier@usgs.gov","middleInitial":"M.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":427027,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bernardy, Jeffry A. 0000-0001-7443-1995 jbernardy@usgs.gov","orcid":"https://orcid.org/0000-0001-7443-1995","contributorId":3537,"corporation":false,"usgs":true,"family":"Bernardy","given":"Jeffry","email":"jbernardy@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":427026,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gingerich, William H.","contributorId":36086,"corporation":false,"usgs":true,"family":"Gingerich","given":"William","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":427028,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030358,"text":"70030358 - 2006 - Kaolin","interactions":[],"lastModifiedDate":"2013-04-16T14:21:15","indexId":"70030358","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2755,"text":"Mining Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Kaolin","docAbstract":"In 2005, 22 companies mined kaolin in nine US states. Production in Georgia declined to 6.19 Mt down from 6.78 Mt in 2004. Despite the decline, Georgia remained the leading producer state followed by Alabama, South Carolina, Arkansas, Texas, Nevada, California, North Carolina and Florida. In the next year or two, domestic and export sales of kaolin for paper application are not expected to change significantly.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mining Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"SME","publisherLocation":"Englewood, CO","issn":"00265187","usgsCitation":"Virta, R., 2006, Kaolin: Mining Engineering, v. 58, no. 6, p. 40-41.","productDescription":"2 p.","startPage":"40","endPage":"41","costCenters":[{"id":432,"text":"National Minerals Information Center","active":true,"usgs":true}],"links":[{"id":239407,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"58","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a405be4b0c8380cd64cc7","contributors":{"authors":[{"text":"Virta, R.L.","contributorId":39357,"corporation":false,"usgs":true,"family":"Virta","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":426844,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70030886,"text":"70030886 - 2006 - Organic geochemistry - A retrospective of its first 70 years","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030886","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Organic geochemistry - A retrospective of its first 70 years","docAbstract":"Organic geochemistry had its origin in the early part of the 20th century when organic chemists and geologists realized that detailed information on the organic materials in sediments and rocks was scientifically interesting and of practical importance. The generally acknowledged \"father\" of organic geochemistry is Alfred E. Treibs (1899-1983), who discovered and described, in 1936, porphyrin pigments in shale, coal, and crude oil, and traced the source of these molecules to their biological precursors. Thus, the year 1936 marks the beginning of organic geochemistry. However, formal organization of organic geochemistry dates from 1959 when the Organic Geochemistry Division (OGD) of The Geochemical Society was founded in the United States, followed 22 years later (1981) by the establishment of the European Association of Organic Geochemists (EAOG). Organic geochemistry (1) has its own journal, Organic Geochemistry (beginning in 1979) which, since 1988, is the official journal of the EAOG, (2) convenes two major conferences [International Meeting on Organic Geochemistry (IMOG), since 1962, and Gordon Research Conferences on Organic Geochemistry (GRC), since 1968] in alternate years, and (3) is the subject matter of several textbooks. Organic geochemistry is now a widely recognized geoscience in which organic chemistry has contributed significantly not only to geology (i.e., petroleum geochemistry, molecular stratigraphy) and biology (i.e., biogeochemistry), but also to other disciplines, such as chemical oceanography, environmental science, hydrology, biochemical ecology, archaeology, and cosmochemistry.","largerWorkTitle":"Organic Geochemistry","language":"English","doi":"10.1016/j.orggeochem.2005.09.001","issn":"01466380","usgsCitation":"Kvenvolden, K., 2006, Organic geochemistry - A retrospective of its first 70 years, in Organic Geochemistry, v. 37, no. 1, p. 1-11, https://doi.org/10.1016/j.orggeochem.2005.09.001.","startPage":"1","endPage":"11","numberOfPages":"11","costCenters":[],"links":[{"id":211691,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.orggeochem.2005.09.001"},{"id":239031,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6fb7e4b0c8380cd75c0e","contributors":{"authors":[{"text":"Kvenvolden, K.A.","contributorId":80674,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":429088,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70028041,"text":"70028041 - 2006 - Processes affecting transport of uranium in a suboxic aquifer","interactions":[],"lastModifiedDate":"2018-10-26T07:45:57","indexId":"70028041","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3067,"text":"Physics and Chemistry of the Earth","active":true,"publicationSubtype":{"id":10}},"title":"Processes affecting transport of uranium in a suboxic aquifer","docAbstract":"At the Naturita site in Colorado, USA, groundwaters were sampled and analyzed for chemical composition and by culture and culture-independent microbiological techniques. In addition, sediments were extracted with a dilute sodium carbonate solution to determine quantities of labile uranium within the sediments. Samples from the upgradient portion of the contaminated aquifer, where very little dissolved Fe(II) is found in the groundwater, have uranium content that is controlled by U(VI) adsorption and few metal-reducing bacteria are observed. In the extreme downgradient portion of the aquifer, where dissolved Fe(II) is observed, uranium content of the sediments includes significant quantities of reduced U(IV) and diverse populations of Fe(III)-reducing bacteria were present in the subsurface with the potential of reducing U(VI) to U(IV).
Relative contributions of geologic and anthropogenic processes to subsidence of southern Louisiana are vigorously debated. Of these, shallow sediment compaction is often considered dominant, although this has never been directly observed or effectively demonstrated. Quantitative understanding of subsidence is important for predicting relative sea level rise, storm surge flooding due to hurricanes, and for successful wetland restoration. Despite many shallow borings, few appropriate stratigraphic and geotechnical data are available for site-specific calculations. We overcome this by determining present compaction rates from Monte Carlo simulations of the incremental sedimentation and compaction of stratigraphies typical of the Holocene of southern Louisiana. This approach generates distributions of present compaction rates that are not expected to exceed 5 mm/yr, but may locally. Locations with present subsidence rates greater than the predicted maximum probable shallow compaction rates are likely influenced by additional processes.
","language":"English","publisher":"AGU Publications","doi":"10.1029/2006GL026300","usgsCitation":"Meckel, T., ten Brink, U., and Williams, S., 2006, Current subsidence rates due to compaction of Holocene sediments in southern Louisiana: Geophysical Research Letters, v. 33, no. 11, Article L11403; 5 p., https://doi.org/10.1029/2006GL026300.","productDescription":"Article L11403; 5 p.","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":486881,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006gl026300","text":"Publisher Index Page"},{"id":236837,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -92.25769042968749,\n 28.7965462417692\n ],\n [\n -88.9398193359375,\n 28.7965462417692\n ],\n [\n -88.9398193359375,\n 31.034108344903512\n ],\n [\n -92.25769042968749,\n 31.034108344903512\n ],\n [\n -92.25769042968749,\n 28.7965462417692\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"33","issue":"11","noUsgsAuthors":false,"publicationDate":"2006-06-14","publicationStatus":"PW","scienceBaseUri":"5059fd14e4b0c8380cd4e60f","contributors":{"authors":[{"text":"Meckel, T.A.","contributorId":91676,"corporation":false,"usgs":true,"family":"Meckel","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":416433,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"ten Brink, Uri S. 0000-0001-6858-3001 utenbrink@usgs.gov","orcid":"https://orcid.org/0000-0001-6858-3001","contributorId":127560,"corporation":false,"usgs":true,"family":"ten Brink","given":"Uri S.","email":"utenbrink@usgs.gov","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":416431,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Williams, S.J.","contributorId":85203,"corporation":false,"usgs":true,"family":"Williams","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":416432,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028077,"text":"70028077 - 2006 - The influence of hazard models on GIS-based regional risk assessments and mitigation policies","interactions":[],"lastModifiedDate":"2012-03-12T17:20:42","indexId":"70028077","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2069,"text":"International Journal of Risk Assessment and Management","active":true,"publicationSubtype":{"id":10}},"title":"The influence of hazard models on GIS-based regional risk assessments and mitigation policies","docAbstract":"Geographic information systems (GIS) are important tools for understanding and communicating the spatial distribution of risks associated with natural hazards in regional economies. We present a GIS-based decision support system (DSS) for assessing community vulnerability to natural hazards and evaluating potential mitigation policy outcomes. The Land Use Portfolio Modeler (LUPM) integrates earth science and socioeconomic information to predict the economic impacts of loss-reduction strategies. However, the potential use of such systems in decision making may be limited when multiple but conflicting interpretations of the hazard are available. To explore this problem, we conduct a policy comparison using the LUPM to test the sensitivity of three available assessments of earthquake-induced lateral-spread ground failure susceptibility in a coastal California community. We find that the uncertainty regarding the interpretation of the science inputs can influence the development and implementation of natural hazard management policies. Copyright ?? 2006 Inderscience Enterprises Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Risk Assessment and Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1504/IJRAM.2006.009537","issn":"14668297","usgsCitation":"Bernknopf, R., Rabinovici, S., Wood, N., and Dinitz, L., 2006, The influence of hazard models on GIS-based regional risk assessments and mitigation policies: International Journal of Risk Assessment and Management, v. 6, no. 4-6, p. 369-387, https://doi.org/10.1504/IJRAM.2006.009537.","startPage":"369","endPage":"387","numberOfPages":"19","costCenters":[],"links":[{"id":210038,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1504/IJRAM.2006.009537"},{"id":236836,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"4-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bad26e4b08c986b3239f7","contributors":{"authors":[{"text":"Bernknopf, R. L.","contributorId":46082,"corporation":false,"usgs":true,"family":"Bernknopf","given":"R. L.","affiliations":[],"preferred":false,"id":416429,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rabinovici, S.J.M.","contributorId":103832,"corporation":false,"usgs":true,"family":"Rabinovici","given":"S.J.M.","affiliations":[],"preferred":false,"id":416430,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wood, N.J.","contributorId":7900,"corporation":false,"usgs":true,"family":"Wood","given":"N.J.","email":"","affiliations":[],"preferred":false,"id":416427,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dinitz, L.B.","contributorId":16192,"corporation":false,"usgs":true,"family":"Dinitz","given":"L.B.","email":"","affiliations":[],"preferred":false,"id":416428,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}