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Browsing by Author "Larson, Gary L."
Now showing items 1-15 of 15
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Renner, Dirk (2005-06-07)Invasion by nonnative brook trout (Salvelinus fontinalis) often results in replacement of bull trout (Salvelinus confluentus) in western North America, but the causal mechanisms are not well understood. Removal of broo ...
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Ecological implications of trout introductions to lakes of the Selway Bitterroot Wilderness, Idaho Bahls, Peter F. (1990-10-08)The widespread introduction of trout to naturally fishless mountain lakes in the western United States has been accompanied by little research. The ecological role of trout populations occurring in 91 lakes of the centra ...
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Steil, Deborah L. (1976-07-21)Ninety-six hour acute toxicity bioassays were employed to determine the tolerance of juvenile coho salmon to chlorinated stabilized kraft mill effluent (SKME). In addition the effect of chlorinated SKME on the growth ...
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Effects of hydrology on zooplankton communities in high mountain ponds, Mount Rainier National Park Girdner, Scott F. (1994-04-06)Ten high mountain ponds in Mount Rainier National Park, Washington State, were studied from June through September 1992 to investigate the influences of fluctuating pond volumes on zooplankton communities. A temporary ...
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Heck, Michael P. (2007-04-23)Wildfire is a largely terrestrial perturbation broadly recognized as an agent of disturbance and ecological change in forested biomes. Effects of post-fire conditions on biotic components of aquatic systems have been le ...
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Brenkman, Samuel J. (1998-02-26)Distribution and life history characteristics of lacustrine-adfluvial bull trout (Salvelinus confluentus) were described in the North Fork Skokomish River Basin (including Lake Cushman, a reservoir) from 1994 to 1996. ...
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Brokes, Brendan J. (1999-10-07)Ambystoma macrodactylum (long-toed salamander) and A. gracile (northwestern salamander) are two common salamander species occupying key trophic positions in mountain ponds of Mount Rainier National Park. The objective of ...
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Gresswell, Robert E. (1994-05-19)Life-history organization of the cutthroat trout (Oncorhvnchus clarki) may be viewed at various levels, including species, subspecies, metapopulation, population, or individual. Each level varies in spatial scale and t ...
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Berger, Aaron M. (2007-07-30)Mark-recapture methods were used to examine watershed-scale survival rates of coastal cutthroat trout (Oncorhynchus clarkii clarkii) from two headwater stream networks located in the foothills of the Cascade Mountain Ran ...
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Responses to fertilization and fish stocking in the pelagic ecosystem of a naturally fishless lake Cameron, William A. (1990-08-20)Ecologists have studied the responses of pelagic ecosystems to varying levels of nutrient loading and fish predation on many different scales ranging from small experimental enclosures to whole lake systems. There are ...
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Meyerhoff, Roger Dean (1976-06-17)There is evidence that recent ecological changes in lakes and their watersheds can be detected from analysis of lake sediments. This study was initiated to correlate changes in some sediment characteristics of four Oreg ...
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Davis, Gerald E.; Larson, Gary L. ([Corvallis, Ore.] : Dept. of Fisheries and Wildlife, Water Resources Research Institute, 1976-09)
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McManus, James; Collier, Robert W.; Dymond, Jack; Wheat, C. Geoffrey; Larson, Gary L. (American Society of Limnology and Oceanography, Inc., 1996)Small temporal and spatial variations in the distribution of dissolved oxygen in Crater Lake, Oregon, are used to estimate the mean age of the lake’s deep water, the flux of labile organic carbon to the deep lake, and t ...
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Warncke, William Madara (1998-05-29)The species compositions and densities of the littoral and pelagic zooplankton assemblages in Crater Lake were compared. The littoral and pelagic zooplankton assemblages of most lakes are typically different due to dif ...
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Dymond, Jack; Collier, Robert W.; McManus, James; Larson, Gary L. (American Society of Limnology and Oceanography, Inc., 1996)Flux estimates show that upward mixing of the deep-water nitrate pool accounts for more than 85% of the total new nitrogen input to the euphotic zone of Crater Lake. Because measured primary productivity (360 mg C m-2 d- ...
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