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Page 3740, results 93476 - 93500

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A spatial decision support system for coastal management: A research project at the National Wetlands Research Center of the U.S. Geological Survey
Wei Ji, James B. Johnston
1996, Conference Paper, GIS application for fisheries and coastal resources management
Environmental resource managers and scientists are being challenged in developing strategies to manage complex coastal systems. From an ecological perspective, there are myriad dynamic, interrelated natural and human-induced processes that affect the health and stability of coastal systems. However, the problems associated with managing coastal resources usually transcend purely ecological...
Contaminants in the Gulf of Maine-What's here and should we worry?
Marilyn R. Buchholtz ten Brink, Frank T. Manheim, Michael H. Bothner
1996, Conference Paper, The health of the Gulf of Maine ecosystem: Cumulative impacts of multiple stressors. Workshop report, RARGOM Report 96-1
The Gulf of Maine is a dynamic environment that has highly variable bottom type and localized depositional and transport processes. It is used and impacted by the people around it who hope to use the marine system for many purposes such as fishing, recreation, housing, sewage and dumped disposal, shipping,...
Fluoride in birds
Walker J Fleming
1996, Book chapter, Environmental contaminants in wildlife: Interpreting tissue concentrations
No abstract available....
The Bumpus house sparrow data: A reanalysis using structural equation models
Bruce H. Pugesek, Adrian Tomer
1996, Evolutionary Ecology (10) 387-404
We analysed the data of H.C. Bumpus on the survival of house sparrows (Passer domesticus) using structural equation modelling techniques. Using data on seven morphological variables measured by Bumpus, we tested and confirmed a three-factor model that characterized physical attributes for general size, leg size and head size....
The potential impact of herbivores on the susceptibility of the marsh plant Sagittaria lancifolia to saltwater intrusion in coastal wetlands
James B. Grace, Mark Ford
1996, Estuaries (19) 13-20
The objective of this study was to experimentally evaluate the effects of simulated herbivory on the ability of a freshwater marsh plant to recover from temporary saltwater intrusion such as can be caused by tropical storms. Sods containing Sagittaria lancifolia, a dominant plant in interior coastal marshes, were manipulated...
Small watershed studies: Analytical approaches for understanding ecosystem response to environmental change
Thomas G. Huntington, R. P. Hooper, Peter S. Murdoch
1996, Conference Paper, Proceedings of the Watershed '96 Conference--Moving ahead together
Biogeochemical studies in small watersheds provide an analytical approach to understand how ecosystems respond to natural climatic variations and human-induced environmental change. Small watersheds, usually less than 5 km2, are small enough to permit characterization and understanding of ecosystem processes within relatively simple, homogeneous biological and physical settings; yet they are large enough to...
An examination of organic/carbonate-bound metals in bottom sediments of Bayou Trepagnier, Louisiana
Timothy J. Dore, Alan M. Bailey, John W. McCoy, Glenn W. Johnson
1996, Gulf Coast Association of Geological Societies Transactions (46) 109-116
To assess potential impact of metals on the biosphere in bottom sediments, forms were determined for selected metals in a southeastern Louisiana bayou, Bayou (B.) Trepagnier, which has been impacted by industrial activity at its head by a manufacturing complex (MC). Ten pairs of cores along the length of the...
Comparative ultrastructure of two closely related thalassiosira species: Thalassiosira vulnifica (gombos) fenner and T. fasciculata Harwood et Maruyama
Albert D. Mahood, John A. Barron
1996, Diatom Research (11) 283-295
The distinctive morphology and relatively short geological range (3.25 to 2.5 Ma) of Thalassiosira vulniflca (Gombos) Fenner make it especially useful for Pliocene biostratigraphic studies in the Antarctic region. Thalassiosira fasciculata Harwood et Maruyama has a geological range (4.5 to 0.75 Ma) that overlaps that of T. vulnifica and it resembles this taxon in possessing prominent...
Tertiary igneous rocks and Laramide structure and stratigraphy of the Spanish Peaks Region, South-Central Colorado: Road log and descriptions from Walsenburg to La Veta
Brian S. Penn, D. A. Lindsay
1996, Open-File Report 96-04-28
The Spanish Peaks are located in the western part of the Raton basin in south-central Colorado, southwest of Walsenburg. The two peaks, West Spanish Peak (WSP, 13,626 feet) and East Spanish Peak (ESP, 12,683 feet), are located on the upland part of the far western edge of the Great Plains...
U.S. East Coast EEZ: Part II
James M. Robb, William P. Dillon, Dennis W O’Leary, P. Popenoe
1996, Book chapter, Geology of the United States' Sea Floor: The View from GLORIA
No abstract available....
Hematology and clinical chemistry of sea otters vaptured in Prince William Sound, Alaska following the Exxon Valdez Oil Spill
A.H. Rebar, Brenda E. Ballachey, D.L. Bruden, Kimberly A. Kloecker
1996, Report
Hematologic and serum chemical analyses were performed on sea otter blood samples collected from 31 adult males, 63 adult females, and 42 pups captured in western Prince William Sound (oiled area), and 12 adult males, 40 adult females, and 15 pups captured in eastern Prince William Sound (unoiled area) in...
Quality control considerations for the determination of acid-volatile sulfide and simultaneously extracted metals in sediments
William G. Brumbaugh, Jesse W. Arms
1996, Environmental Toxicology and Chemistry (15) 282-285
The determination of acid-volatile sulfide (AVS) and simultaneously extracted metals (SEMs) in sediment by treatment with dilute HCl shows promise as a tool for predicting the potential for metal toxicity to sediment-dwelling organisms. Effective quality control measures must be developed if this method is to become a reliable procedure and...
Oxygen transport and pyrite oxidation in unsaturated coal-mine spoil
Weixing Guo, Charles A. Cravotta III,
1996, Conference Paper, Proceedings America Society of Mining and Recreation
An understanding of the mechanisms of oxygen (02) transport in unsaturated mine spoil is necessary to design and implement effective measures to exclude 02 from pyritic materials and to control the formation of acidic mine drainage. Partial pressure of oxygen (Po2) in pore gas, chemistry of pore water, and temperature...
Proceedings of the ocean drilling program: New Jersey continental slope and rise
Gregory S. Mountain, Kenneth G. Miller, Peter Blum, Per-Gunnar Alm, Marie-Pierre Aubry, Lloyd H. Burckle, Beth A. Christensen, J. Compton, John E. Damuth, Jean-Francois Deconinck, L. De Verteuil, Craig S. Fulthorpe, Stefan Gartner, Gilles Guerin, Stephen P. Hesselbo, Bryce Hoppie, Miriam E. Katz, Nobuhiro Kotake, Juan Manuel Lorenzo, Stuart McCracken, Cecilia McHugh, Wendy C. Quayle, Yoshiki Saito, Scott W. Snyder, Warner G. ten Kate, M. Urbat, Mickey C. Van Fossen, Adam Vecsei
1996, Book
The Scientific Results volumes of the Proceedings of the Ocean Drilling Program contain specialty papers presenting the results of extensive research in various aspects of scientific ocean drilling. The authors of the papers published in this volume have enabled future investigators to gain ready access to the results of their...