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Page 4677, results 116901 - 116925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Determinants of breeding distributions of ducks
Douglas H. Johnson, J.W. Grier
1988, Wildlife Monographs (100)
The settling of breeding habitat by migratory waterfowl is a topic of both theoretical and practical interest. We use the results of surveys conducted annually during 1955-81 in major breeding areas to examine the factors that affect the distributions of 10 common North American duck species. Three patterns of settling...
American wild celery (Vallisneria americana): Ecological considerations for restoration
C. E. Korschgen, W. L. Green
1988, Technical Report 19
The success of vegetation management programs for waterfowl is dependent on knowing the physical and physiological requirements of target species. Lakes and riverine impoundments that contain an abundance of the American wildcelery (Vallisneria americana ) have traditionally been favored by canvasbacks (Aythya valisineria ) and other waterfowl...
Identification, movement, growth, mortality, and exploitation of walleye stocks in Lake St. Clair and the western basin of Lake Erie
Robert C. Haas, Mary C. Fabrizio, Thomas N. Todd
1988, Fisheries Research Report 1954
The harvest of walleye by sport and commercial fisheries in lakes St. Clair and Erie is under a cooperative management program involving several states and two countries. In this report we present the results of a long-term tag-recapture study as well as corroborative evidence of stock discreteness fromstudies of...
Microbial and biogeochernical processes Soda Lake, Nevada
R.S. Oremland, J. E. Cloern, Z. Sofer, R. L. Smith, C.W. Culbertson, J. Zehr, L. Miller, B. Cole, R. Harvey, N. Iversen, M. Klug, D. J. Des Marais, G. Rau
1988, Book chapter, Lacustrine petroleum source rocks: Geological Society Special Publication No. 40
Meromictic, alkaline lakes represent modern-day analogues of lacustrine source rock depositional environments. In order to further our understanding of how these lakes function in terms of limnological and biogeochemical processes, we have conducted an interdisciplinary study of Big Soda Lake. Annual mixolimnion productivity (ca. 500 g m-2) is dominated by...
Neogene stratigraphy, foraminifera, diatoms, and depositional history of Maria Madre Island, Mexico: Evidence of early Neogene marine conditions in the southern Gulf of California
C. McCloy, J.C. Ingle, J.A. Barron
1988, Marine Micropaleontology (13) 193-212
Foraminifera and diatoms have been analyzed from an upper Miocene through Pleistocene(?) sequence of marine sediments exposed on Maria Madre Island, largest of the Trés Marias Islands off the Pacific coast of Mexico. The Neogene stratigraphic sequence exposed on Maria Madre...
Detailed record of SO2 emissions from Pu'u `O`o between episodes 33 and 34 of the 1983-86 ERZ eruption, Kilauea, Hawaii
T.A. Chartier, William I. Rose Jr., J. B. Stokes
1988, Bulletin of Volcanology (50) 215-228
A tripod-mounted correlation spectrometer was used to measure SO2 emissions from Pu`u `O`o vent, mid-ERZ, Kilauea, Hawaii between Episodes 33 and 34 (June 13 to July 6, 1985). In 24 repose days, 906 measurements were collected, averaging 38 determinations/day. Measurements reflect 13% of the total 576 hours of the repose...
Depositional environments of the Cache, Lower Lake, and Kelseyville Formations, Lake County, California
Michael J. Rymer, Barry Roth, J. Platt Bradbury, Richard M. Forester
1988, GSA Special Papers (214) 45-62
We describe the depositional environments of the Cache, Lower Lake, and Kelseyville Formations in light of habitat preferences of recovered mollusks, ostracodes, and diatoms. Our reconstruction of paleoenvironments for these late Cenozoic deposits provides a framework for an understanding of basin evolution and deposition in the Clear Lake region. The...
A history of human impacts on the Lake Erie fish community
Jeffrey M. Reutter, Wilbur L. Hartman
J.F. Downhower, editor(s)
1988, Book chapter, The biogeography of the island region of western Lake Erie
The fisheries scientist working in the island region of Lake Erie has access to an extremely large and diverse freshwater fish community. It is the intention of this essay to discuss briefly that community and the impacts of human activities to provide future students and researchers with both current and...