Status of pelagic prey fishes and pelagic macroinvertebrates in Lake Michigan, 2008
David M. Warner, Randall M. Claramunt, Jeffrey D. Holuszko, Timothy J. Desorcie
2009, Conference Paper
Acoustic surveys were conducted in late summer/early fall during the years 1992-1996 and 2001-2008 to estimate pelagic prey fish biomass in Lake Michigan. Midwater trawling during the surveys provided a measure of species and size composition of the fish community for use in scaling acoustic data and providing species-specific abundance...
Age, growth, mortality, and reproduction of Roughtongue bass, Pronotogrammus martinicensis 9Serranidae), in the northeastern Gulf of Mexico
Richard S. McBride, Kenneth J. Sulak, Paul E. Thurman, Adam K. Richardson
2009, Gulf of Mexico Science (27) 30-38
The inaccessibility of outer continental shelf reefs has made it difficult to investigate the biology of Pronotogrammus martinicensis, a small sea bass known to be numerous and widely distributed in such habitat. This study takes advantage of a series of cruises in the northeastern Gulf of Mexico that collected 1,485...
Great Lakes prey fish populations: A cross-basin overview of status and trends in 2008
Owen T. Gorman, David B. Bunnell
2009, Conference Paper
Assessments of prey fishes in the Great Lakes have been conducted annually since the 1970s by the Great Lakes Science Center, sometimes assisted by partner agencies. Prey fish assessments differ among lakes in the proportion of a lake covered, seasonal timing, bottom trawl gear used, sampling design, and the manner...
A robust, multisite Holocene history of drift ice off northern Iceland: Implications for North Atlantic climate
John T. Andrews, D. Darby, D. Eberle, A. E. Jennings, M. Moros, A. Ogilvie
2009, Holocene (19) 71-77
An important indicator of Holocene climate change is provided by evidence for variations in the extent of drift ice. A proxy for drift ice in Iceland waters is provided by the presence of quartz. Quantitative x-ray diffraction analysis of the < 2 mm sediment fraction was undertaken on 16 cores...
Audiomagnetotelluric investigation of Snake Valley, eastern Nevada and western Utah
Darcy McPhee, Keith Pari, Frank Baird
2009, Geology and Geologic Resources and Issues of Western Utah 287-298
Audiomagnetotelluric (AMT) data along four profiles in western Snake Valley and the corresponding two-dimensional (2-D) inverse models reveal subsurface structures that may be significant to ground-water investigations in the area. The AMT method is a valuable tool for estimating the electrical resistivity of the earth over depth ranges from...
Indicators and standards of quality for trail and campsite conditions at Isle au Haut
Jeffrey L. Marion
Robert E. Manning, editor(s)
2009, Book chapter, Parks and people: Managing outdoor recreation at Acadia National Park
No abstract available....
Status and trends of prey fish populations in Lake Michigan, 2008
David B. Bunnell, Charles P. Madenjian, Jeffrey D. Holuszko, Timothy J. Desorcie, Jean V. Adams
2009, Report
The Great Lakes Science Center (GLSC) has conducted lake-wide surveys of the fish community in Lake Michigan each fall since 1973 using standard 12-m bottom trawls towed along contour at depths of 9 to 110 m at each of seven index transects. The resulting data on relative abundance, size structure,...
Sources of land-derived runoff to a coral reef-fringed embayment identified using geochemical tracers in nearshore sediment traps
Renee K. Takesue, Michael H. Bothner, Richard L. Reynolds
2009, Estuarine, Coastal and Shelf Science (85) 459-471
Geochemical tracers, including Ba, Co, Th, 7Be, 137Cs and 210Pb, and magnetic properties were used to characterize terrestrial runoff collected in nearshore time-series sediment traps in Hanalei Bay, Kauai, during flood and dry conditions in summer 2006, and to fingerprint possible runoff sources in the lower watershed. In combination, the...
Experimental infection of Hawai'i 'Amakihi (hemignathus virens) with West Nile virus and competence of a co-occurring vector, culex quinquefasciatus: potential impacts on endemic Hawaiian avifauna.
Dennis A. LaPointe, Erik K. Hofmeister, C. T. Atkinson, R.E. Porter, Robert J. Dusek
2009, Journal of Wildlife Diseases (45) 257-271
Introduced mosquito-borne avian disease is a major limiting factor in the recovery and restoration of native Hawaiian forest birds. Annual epizootics of avian pox (Avipoxvirus) and avian malaria (Plasmodium relictum) likely led to the extinction of some species and continue to impact populations of susceptible Hawaiian honeycreepers (Drepanidinae). The introduction...
Implications of anthropogenic river stage fluctuations on mass transport in a valley fill aquifer
David F. Boutt, Brandon J. Fleming
2009, Water Resources Research (45)
In humid regions a strong coupling between surface water features and groundwater systems may exist. In these environments the exchange of water and solute depends primarily on the hydraulic gradient between the reservoirs. We hypothesize that daily changes in river stage associated with anthropogenic water releases (such as those from...
Improving conceptual models of water and carbon transfer through peat
Jeffery M. McKenzie, Donald I. Siegel, Donald O. Rosenberry
Andrew J. Baird, Lisa R. Belyea, Xavier Comas, A.S. Reeve, Lee D. Slater, editor(s)
2009, Book chapter, Carbon cycling in northern peatlands: Geophysical Monograph Series
Northern peatlands store 500 × 1015 g of organic carbon and are very sensitive to climate change. There is a strong conceptual model of sources, sinks, and pathways of carbon within peatlands, but challenges remain both in understanding the hydrogeology and the linkages between carbon cycling and peat pore water...
Cutler Group alluvial, eolian, and marine deposystems: Permian facies relations and climatic variability in the Paradox Basin
Russell F. Dubiel, Jacqueline E. Huntoon, John D. Stanesco, Steven M. Condon
William S. Houston, Laura L. Wray, Peter G. Moreland, editor(s)
2009, Book chapter, The Paradox Basin revisited new developments in petroleum systems and basin analysis
No abstract available....
Exploration of Victoria crater by the mars rover opportunity
S. W. Squyres, A.H. Knoll, R. E. Arvidson, James W. Ashley, J.F. Bell III, W. M. Calvin, P. R. Christensen, B. C. Clark, B. A. Cohen, P.A. De Souza Jr., L. Edgar, W. H. Farrand, I. Fleischer, Ralf Gellert, M.P. Golombek, J. Grant, J. Grotzinger, A. Hayes, K. E. Herkenhoff, J. R. Johnson, B. Jolliff, G. Klingelhofer, A. Knudson, R. Li, T.J. McCoy, S. M. McLennan, D. W. Ming, D. W. Mittlefehldt, R.V. Morris, J. W. Rice Jr., C. Schroder, R.J. Sullivan, A. Yen, R.A. Yingst
2009, Science (324) 1058-1061
The Mars rover Opportunity has explored Victoria crater, a ???750-meter eroded impact crater formed in sulfate-rich sedimentary rocks. Impact-related stratigraphy is preserved in the crater walls, and meteoritic debris is present near the crater rim. The size of hematite-rich concretions decreases up-section, documenting variation in the intensity of groundwater processes....
The post-Mazama northwest rift zone eruption at Newberry Volcano, Oregon
Daniele McKay, Julie M. Donnelly-Nolan, Robert A. Jensen, Duane E. Champion
Jim O’Connor, Rebecca Dorsey, Ian Madin, editor(s)
2009, Book chapter, Volcanoes to vineyards: Geologic field trips through the dynamic landscape of the Pacific Northwest (GSA Field Guides 15)
The northwest rift zone (NWRZ) eruption took place at Newberry Volcano ~7000 years ago after the volcano was mantled by tephra from the catastrophic eruption that destroyed Mount Mazama and produced the Crater Lake caldera. The NWRZ eruption produced multiple lava flows from a variety of vents including cinder cones,...
VIMS spectral mapping observations of Titan during the Cassini prime mission
J. W. Barnes, J.M. Soderblom, R. H. Brown, B. J. Buratti, Christophe Sotin, K. H. Baines, R. N. Clark, R. Jaumann, T. B. McCord, R. Nelson, Stéphane Le Mouélic, S. Rodriguez, C. Griffith, P. Penteado, F. Tosi, K.M. Pitman, L. Soderblom, K. Stephan, P. Hayne, G. Vixie, J.-P. Bibring, G. Bellucci, F. Capaccioni, P. Cerroni, A. Coradini, D. P. Cruikshank, P. Drossart, V. Formisano, Y. Langevin, D. L. Matson, P. D. Nicholson, B. Sicardy
2009, Planetary and Space Science (57) 1950-1962
This is a data paper designed to facilitate the use of and comparisons to Cassini/visual and infrared mapping spectrometer (VIMS) spectral mapping data of Saturn's moon Titan. We present thumbnail orthographic projections of flyby mosaics from each Titan encounter during the Cassini prime mission, 2004 July 1 through 2008 June...
Otters, Marine
James A. Estes, James L. Bodkin, M. Ben-David
William F. Perrin, Bernd Wursing, J.G.M. Thewissen, editor(s)
2009, Book chapter, Encyclopedia of marine mammals (second edition)
The otters (Mustelidae; Lutrinae) provide an exceptional perspective into the evolution of marine living by mammals. Most extant marine mammals (e.g. the cetaceans, pinnipeds, and sirenians) have been so highly modified by long periods of selection for life in the sea that they bear little resemblance to their terrestrial ancestors....
Multifunctional grass farming: Science and policy considerations
George Boody, Prasanna H. Gowda, John Westra, Caroline van Schaik, Patrick Welle, Bruce C. Vondracek, Dennis Johnson
Alan J. Franzluebbers, editor(s)
2009, Book chapter, Farming with frass: Achieving sustainable mixed agricultural landscapes
No abstract available....
Eruption-related lahars and sedimentation response downstream of Mount Hood: Field guide to volcaniclastic deposits along the Sandy River, Oregon
Tom C. Pierson, William E. Scott, James W. Vallance, Patrick T. Pringle
Jim O’Connor, Rebecca Dorsey, Ian Madin, editor(s)
2009, Book chapter, Volcanoes to vineyards: Geologic field trips through the dynamic landscape of the Pacific Northwest
Late Holocene dome-building eruptions at Mount Hood during the Timberline and Old Maid eruptive periods resulted in numerous dome-collapse pyroclastic flows and lahars that moved large volumes of volcaniclastic sediment into temporary storage in headwater canyons of the Sandy River. During each eruptive period, accelerated sediment loading to the river...
Occurrence of transformation products in the environment
Dana W. Kolpin, William A. Battaglin, Kathleen E. Conn, Edward T. Furlong, Susan T. Glassmeyer, Stephen J. Kalkhoff, Michael T. Meyer, Douglas J. Schnoebelen
Alistair B.A. Boxall, editor(s)
2009, Book chapter, Transformation products of synthetic chemicals in the environment
Historically, most environmental occurrence research has focused on the parent compounds of organic contaminants. Research, however, has documented that the environmental transport of chemicals, such as pesticides and emerging contaminants, are substantially underestimated if transformation products are not considered. Although most examples described herein were drawn from research conducted by...
Characterization of clouds in Titan's tropical atmosphere
C.A. Griffith, P. Penteado, S. Rodriguez, Stéphane Le Mouélic, K. H. Baines, B. Buratti, R. Clark, P. Nicholson, R. Jaumann, Christophe Sotin
2009, Astrophysical Journal (702)
Images of Titan's clouds, possible over the past 10 years, indicate primarily discrete convective methane clouds near the south and north poles and an immense stratiform cloud, likely composed of ethane, around the north pole. Here we present spectral images from Cassini's Visual Mapping Infrared Spectrometer that reveal the increasing...
TandEM: Titan and Enceladus mission
A. Coustenis, S.K. Atreya, T. Balint, R. H. Brown, M.K. Dougherty, F. Ferri, M. Fulchignoni, D. Gautier, R.A. Gowen, C.A. Griffith, L.I. Gurvits, R. Jaumann, Y. Langevin, M.R. Leese, J. I. Lunine, C.P. McKay, X. Moussas, I. Muller-Wodarg, F. Neubauer, T.C. Owen, F. Raulin, E.C. Sittler, F. Sohl, Christophe Sotin, G. Tobie, T. Tokano, E. P. Turtle, J.-E. Wahlund, J.H. Waite, K. H. Baines, J. E. Blamont, A.J. Coates, I. Dandouras, T. Krimigis, E. Lellouch, R. D. Lorenz, A. Morse, C.C. Porco, M. Hirtzig, J. Saur, T. Spilker, J.C. Zarnecki, E. Choi, N. Achilleos, R. Amils, P. Annan, D.H. Atkinson, Y. Benilan, C. Bertucci, B. Bezard, G.L. Bjoraker, M. Blanc, L. Boireau, J. Bouman, M. Cabane, M.T. Capria, E. Chassefiere, P. Coll, M. Combes, J.F. Cooper, A. Coradini, F. Crary, T. Cravens, I.A. Daglis, E. de Angelis, C. De Bergh, I. de Pater, C. Dunford, G. Durry, O. Dutuit, D. Fairbrother, F.M. Flasar, A.D. Fortes, R. Frampton, M. Fujimoto, M. Galand, O. Grasset, M. Grott, T. Haltigin, A. Herique, F. Hersant, H. Hussmann, W. Ip, R. Johnson, E. Kallio, S. Kempf, M. Knapmeyer, W. Kofman, R. Koop, T. Kostiuk, N. Krupp, M. Kuppers, H. Lammer, L.-M. Lara, P. Lavvas, Stéphane Le Mouélic, S. Lebonnois, S. Ledvina, Ji Li, T.A. Livengood, R.M. Lopes, J. #NAME? Lopez-Moreno, D. Luz, P.R. Mahaffy, U. Mall, J. Martinez-Frias, B. Marty, T. McCord, C.M. Salvan, A. Milillo, D.G. Mitchell, R. Modolo, O. Mousis, M. Nakamura, Catherine D. Neish, C.A. Nixon, D.N. Mvondo, G. Orton, M. Paetzold, J. Pitman, S. Pogrebenko, W. Pollard, O. Prieto-Ballesteros, P. Rannou, K. Reh, L. Richter, F.T. Robb, R. Rodrigo, S. Rodriguez, P. Romani, M.R. Bermejo, E.T. Sarris, P. Schenk, B. Schmitt, N. Schmitz, D. Schulze-Makuch, K. Schwingenschuh, A. Selig, B. Sicardy, L. Soderblom, L.J. Spilker, D. Stam, A. Steele, K. Stephan, D.F. Strobel, K. Szego, Szopa
2009, Experimental Astronomy (23) 893-946
TandEM was proposed as an L-class (large) mission in response to ESA’s Cosmic Vision 2015–2025 Call, and accepted for further studies, with the goal of exploring Titan and Enceladus. The mission concept is to perform in situ investigations of two worlds tied together by location and properties, whose remarkable natures...
Using occupancy models of forest breeding birds to prioritize conservation planning
A. A. De Wan, P.J. Sullivan, A.J. Lembo, C. R. Smith, J.C. Maerz, J.P. Lassoie, M. E. Richmond
2009, Biological Conservation (142) 982-991
As urban development continues to encroach on the natural and rural landscape, land-use planners struggle to identify high priority conservation areas for protection. Although knowing where urban-sensitive species may be occurring on the landscape would facilitate conservation planning, research efforts are often not sufficiently designed to make quality predictions at...
Many monstrous Missoula floods down channeled scabland and Columbia Valley, Washington
Richard B. Waitt, Roger P. Denlinger, Jim O’Connor
Jim O’Connor, Ian Madin, Rebecca Dorsey, editor(s)
2009, Book chapter, Volcanoes to vineyards: geologic field trips through the dynamic landscape of the Pacific Northwest
The late Wisconsin Missoula floods are Earth's largest known discharges of fresh water. They carved Washington's Channeled Scabland--made famous by J H. Bretz's writings in the 1920s to 1950s--and deposited sporadic huge gravel bars in the Scab-lands and Columbia valley. Since the late 1970s the great floods have been shown...
Ice and water on Newberry Volcano, central Oregon
Julie M. Donnelly-Nolan, Robert A. Jensen
Jim O’Connor, Ian P. Madin, Rebecca Dorsey, editor(s)
2009, Book chapter, Volcanoes to vineyards: Geologic field trips through the dynamic landscape of the Pacific Northwest
Newberry Volcano in central Oregon is dry over much of its vast area, except for the lakes in the caldera and the single creek that drains them. Despite the lack of obvious glacial striations and well-formed glacial moraines, evidence indicates that Newberry was glaciated. Meter-sized foreign blocks, commonly with smoothed...
Warmwater fish in wadeable streams
Charles F. Rabeni, John J. Lyons, Norman Mercado-Silva, James T. Peterson
Scott A. Bonar, Wayne A. Hubert, David W. Willis, editor(s)
2009, Book chapter, Standard methods for sampling North American freshwater fishes
Both “warmwater” and “wadeable” are terms of convenience without precise definition and are used by biologists to describe streams that are generally too warm to have sustainable salmonid populations and can be safely traversed by walking (i.e., a section of stream should have the majority of its length less than...
