Factors associated with mortality of walleyes and saugers caught in live-release tournaments
Harold Schramm Jr., Bruce C. Vondracek, William E. French, Patrick D. Gerard
2010, North American Journal of Fisheries Management (30) 238-253
We measured the initial mortality (fish judged nonreleasable at weigh-in), prerelease mortality (fish judged nonreleasable 1–2 h after weigh-in [which includes initial mortality]), and postrelease mortality (fish that died during a 5-d retention in net-pens) in 14 live-release tournaments for walleye Sander vitreus conducted in April–October 2006 and April–July 2007 in lakes...
Effects of prior detections on estimates of detection probability, abundance, and occupancy
Jason D. Riddle, Rua S. Mordecai, Kenneth H. Pollock, Theodore R. Simons
2010, The Auk (127) 94-99
Survey methods that account for detection probability often require repeated detections of individual birds or repeated visits to a site to conduct Counts or collect presence-absence data. Initial encounters with individual species or individuals of a species could influence detection probabilities for subsequent encounters. For example, observers may be more...
Przewalskium albirostre (Artiodactyla: Cervidae)
David M. Leslie Jr.
2010, Mammalian Species (42) 7-18
Przewalskium albirostre (Przewalski, 1883) is a physically unique cervid commonly called the white-lipped deer. Przewalskium is monotypic. This species is a high-elevation specialist endemic to the eastern Tibetan Plateau where it inhabits relatively open hills and mountains with a mosaic of forest edges, meadows, and shrublands. Populations of P. albirostre<span...
Tsunami simulations of the 1867 Virgin Island earthquake: Constraints on epicenter location and fault parameters
Roy Barkan, Uri S. ten Brink
2010, Bulletin of the Seismological Society of America (100) 995-1009
The 18 November 1867 Virgin Island earthquake and the tsunami that closely followed caused considerable loss of life and damage in several places in the northeast Caribbean region. The earthquake was likely a manifestation of the complex tectonic deformation of the Anegada Passage, which cuts across the Antilles island arc...
CO2, CO, and Hg emissions from the Truman Shepherd and Ruth Mullins coal fires, eastern Kentucky, USA
Jennifer M.K. O’Keefe, Kevin R. Henke, James C. Hower, Mark A. Engle, Glenn B. Stracher, J.D. Stucker, Jordan W. Drew, Wayne D. Staggs, Tiffany M. Murray, Maxwell L. Hammond III, Kenneth D. Adkins, Bailey J. Mullins, Edward W. Lemley
2010, Science of the Total Environment (408) 1628-1633
Carbon dioxide (CO2), carbon monoxide (CO), and mercury (Hg) emissions were quantified for two eastern Kentucky coal-seam fires, the Truman Shepherd fire in Floyd County and the Ruth Mullins fire in Perry County. This study is one of the first to estimate gas emissions from coal fires using field measurements...
Geophysical framework of the northern San Francisco Bay region, California
Victoria E. Langenheim, Russell W. Graymer, Robert C. Jachens, Robert J. McLaughlin, D.L. Wagner, Donald S. Sweetkind
2010, Geosphere (6) 594-620
We use geophysical data to examine the structural framework of the northern San Francisco Bay region, an area that hosts the northward continuation of the East Bay fault system. Although this fault system has accommodated ∼175 km of right-lateral offset since 12 Ma, how this offset is partitioned north of...
Quantifying rock uplift rates using channel steepness and cosmogenic nuclide–determined erosion rates: Examples from northern and southern Italy
Andrew J. Cyr, Darryl E. Granger, Valerio Olivetti, Paola Molin
2010, Lithosphere (2) 188-198
Rock uplift rates can be difficult to measure over 103–105 yr time scales. If, however, a landscape approaches steady state, where hillslope erosion and rock uplift rates are steady and locally similar, then it should be possible to quantify rock uplift rates from hillslope erosion rates. Here, we test this prediction...
The age of the Steens reversal and the Columbia River Basalt Group
Nicholas A. Jarboe, Robert S. Coe, Paul R. Renne, Jonathan M. G. Glen
2010, Chemical Geology (274) 158-168
The Columbia River Basalt Group (CRBG) eruptions have a well-defined relative magnetostratigraphy but have not been definitively correlated to the geomagnetic polarity time scale. 40Ar/39Ar ages are presented from lavas erupted in the R0 through N1magnetozones of the CRBG and in the transition between R0 and N0. Four ages from transitionally magnetized lava flows at Steens Mountain,...
Migratory urge and gll Na+,K+-ATPase activity of hatchery-reared Atlantic salmon smolts from the Dennys and Penobscot River stocks, Maine
Randall C. Spencer, Joseph D. Zydlewski, Gayle B. Zydlewski
2010, Transactions of the American Fisheries Society (139) 947-956
Hatchery-reared Atlantic salmon Salmo salar smolts produced from captive-reared Dennys River and sea-run Penobscot River broodstock are released into their source rivers in Maine. The adult return rate of Dennys smolts is comparatively low, and disparity in smolt quality between stocks resulting from genetic or broodstock rearing effects is plausible. Smolt behavior...
Colony attendance patterns by mated Forster's Terns Sterna forsteri using an automated data-logging receiver system
Jill D. Bluso-Demers, Joshua T. Ackerman, John Y. Takekawa
2010, Ardea (98) 59-65
In order to examine 24-hour colony attendance patterns by mated Forster's Terns Sterna forsteri in South San Francisco Bay, California, during incubation and chick-rearing stages, we radio-marked 10 individuals consisting of five pairs and recorded colony attendance using an automated data-logging receiver system. We calculated and analyzed five variables: the total attendance...
Standard-target calibration of an acoustic backscatter system
Kenneth G. Foote, Marinna A. Martini
2010, Conference Paper, MTS/IEEE Seattle OCEANS 2010
The standard-target method used to calibrate scientific echo sounders and other scientific sonars by a single, solid elastic sphere is being adapted to acoustic backscatter (ABS) systems. Its first application, to the AQUAscat 1000, is described. The on-axis sensitivity and directional properties of transducer beams at three operating frequencies, nominally...
Factors influencing the at-sea distribution of Cassin's Auklets (Ptychoramphus aleuticus) that breed in the Channel Islands, California
Josh Adams, John Y. Takekawa, Harry R. Carter, Julie L. Yee
2010, The Auk (127) 503-513
We used radiotelemetry to evaluate at-sea habitat use by Cassin's Auklets (Ptychoramphus aleuticus) that bred at Prince Island, off southern California, from 1999 through 2001. We used logistic regression to compare paired radiotelemetry (presence) with random (pseudo-absence) location-associated habitat variables derived from (1) satellite remote-sensing of sea surface temperature and...
Geometric evaluation and validation of aerial and satellite data using Sioux Falls Geometric test range
Aparajithan Sampath, Donald Moe, Jon Christopherson, Gregory L. Stensaas
2010, Conference Paper, ASPRS 2010 Annual Conference
No abstract available....
Coupled hydrology and biogeochemistry of Paleocene–Eocene coal beds, northern Gulf of Mexico
Jennifer C. McIntosh, Peter D. Warwick, Anna M. Martini, Stephen G. Osborn
2010, GSA Bulletin (122) 1248-1264
Thirty-six formation waters, gas, and microbial samples were collected and analyzed from natural gas and oil wells producing from the Paleocene to Eocene Wilcox Group coal beds and adjacent sandstones in north-central Louisiana, USA, to investigate the role hydrology plays on the generation and distribution of microbial methane. Major ion...
Anomalous spawning of smallmouth bass in Nebish Lake, Wisconsin: Implications for early spawning and over-winter survival
Peter James Brown, Michael A. Bozek
2010, Journal of Freshwater Ecology (25) 169-177
We observed that the smallmouth bass (Micropterus dolomieu) population in Nebish Lake, Wisconsin spawned twice-once during the traditional spring period and then again in summer, well beyond the typical spawning season for north-temperate lakes. We documented this anomalous spawning behavior and compared the characteristics of smallmouth bass nests built during...
Distribution and habitat use by the critically endangered Stout Iguana (Cyclura pinguis) on Guana Island, British Virgin Islands
Wesley M. Anderson, Grant E. Sorensen, Jenny D. Lloyd-Strovas, Renaldo J. Arroyo, J. Alan Sosa, Sarah J. Wulff, Brent D. Bibles, Clint W. Boal, Gad Perry
2010, IRCF Reptiles & Amphibians (17) 158-165
No abstract available....
Geologic controls on thermal maturity patterns in Pennsylvanian coal-bearing rocks in the Appalachian basin
Leslie F. Ruppert, James C. Hower, Robert T. Ryder, Jeffrey R. Levine, Michael H. Trippi, William C. Grady
2010, International Journal of Coal Geology (81) 169-181
Thermal maturation patterns of Pennsylvanian strata in the Appalachian basin were determined by compiling and contouring published and unpublished vitrinite reflectance (VR) measurements. VR isograd values range from 0.6% in eastern Ohio and eastern Kentucky (western side of the East Kentucky coal field) to greater than 5.5% in eastern Pennsylvania (Southern Anthracite field,...
Brine delineation and monitoring with electrical resistivity tomography and electromagnetic borehole logging at the Fort Knox well field near West Point, Kentucky
Rory Henderson, Michael D. Unthank, Douglas D. Zettwoch, John W. Lane Jr.
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
The potable water system at Fort Knox is threatened by brine contamination from improperly abandoned natural gas exploration wells. The Fort Knox well field is located near the town of West Point, Kentucky, in the flood plain of the Ohio River. At the site, unconsolidated sediments approximately 30 – 40...
Book review: Hollowed ground—Copper mining and community building on Lake Superior, 1840s–1990s
Klaus J. Schulz
2010, Economic Geology (105) 1351-1354
In 1843, six years before the Forty-niners headed west for the goldfields of California, the United States’ first great mineral rush began to a land that was, as Patrick Henry told Congress, “beyond the most distant wilderness and remote as the moon.” He was referring to the Keweenaw Peninsula of...
Aquatic community responses to salmon carcass analog and wood bundle additions in restored floodplain habitats in an Alaskan stream
Aaron E. Martin, Mark S. Wipfli, Robert E. Spangler
2010, Transactions of the American Fisheries Society (139) 1828-1845
Land use activities often directly and indirectly limit the capacity of freshwater habitats to produce fish. Consequently, habitat creation and enhancement actions are often undertaken to increase the quantity and quality of resources available to aquatic communities within these impaired systems, with the intent to increase fish production. The objectives...
Shaded seafloor relief, backscatter strength, and surficial geology; German Bank, Scotian Shelf, offshore Nova Scotia
B.J. Todd, Page C. Valentine
2010, Open File 6124
This map is part of a three-map series of German Bank, located on the Scotian Shelf off southern Nova Scotia. This map is the product of a number of surveys (1997-2003) that used a multibeam sonar system to map 5321 km2 of the seafloor. Other surveys collected geological data for...
Maintenance of Eastern hemlock forests: Factors associated with hemlock vulnerability to hemlock woolly adelgid
Mary Ann Fajvan, Petra Bohall Wood
2010, Conference Paper, Proceedings from the Conference on the Ecology and Management of High-Elevation Forests in the Central and Southern Appalachian Mountains
Eastern hemlock (Tsuga canadensis [L.]) is the most shade-tolerant and long-lived tree species in eastern North America. The hemlock woolly adelgid (Adelges tsugae) (HWA), is a nonnative invasive insect that feeds on eastern hemlock and Carolina hemlock (Tsuga caroliniana Engelm.). HWA currently is established in 17 eastern states and is...
Assessing the response of the Pamlico Sound, North Carolina, USA to human and climatic disturbances: Management implications
H.W. Paerl, B.L. Peierls, N. S. Hall, A. R. Joyner, R.R. Christian, Jerad D. Bales, S.R. Riggs
2010, Book chapter, Coastal lagoons: Critical habitats of environmental change
The Pamlico Sound (PS) with its sub-estuaries is the largest lagoonal ecosystem in the United States. It exhibits periodically strong salinity stratification and an average freshwater residence time of 1 year for the sound proper. This relatively long residence time promotes effective use and cycling of nutrients, allowing the system...
Use of induced polarization to characterize the hydrogeologic framework of the zone of surface‐water/groundwater exchange at the Hanford 300 Area, WA
Lee Slater, Dimitrios Ntarlagiannis, Frederick D. Day-Lewis, Kisa Mwakanyamale, John W. Lane Jr., Andy Ward, Roelof J. Versteeg
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
An extensive continuous waterborne electrical imaging (CWEI) survey was conducted along the Columbia River corridor adjacent to the U.S. Department of Energy (DOE) Hanford 300 Area, WA, in order to improve the conceptual model for exchange between surface water and U‐contaminated groundwater. The primary objective was to determine spatial variability...
Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity andinduced-polarization data
Timothy C. Johnson, Roelof J. Versteeg, Andy Ward, Frederick D. Day-Lewis, André Revil
2010, Geophysics (75) WA27-WA41
Electrical geophysical methods have found wide use in the growing discipline of hydrogeophysics for characterizing the electrical properties of the subsurface and for monitoring subsurface processes in terms of the spatiotemporal changes in subsurface conductivity, chargeability, and source currents they govern. Presently, multichannel and multielectrode data collections systems can collect...
