Columbia River White Sturgeon Genetics and Early Life History [electronic resource] : Population Segregation and Juvenile Feeding Behavior, 1987 Final Report.

The geographic area of the genetics study broadly covered the distribution range of sturgeon in the Columbia from below Bonneville Dam at Ilwaco at Lake Roosevelt, the Upper Snake River, and the Kootenai River. The two remote river sections provided data important for enhancement considerations. The...

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Bibliographic Details
Online Access: Online Access
Corporate Author: University of Washington (Researcher)
Format: Government Document Electronic eBook
Language:English
Published: Portland, Ore. : Oak Ridge, Tenn. : United States. Bonneville Power Administration ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, 1988.
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MARC

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245 0 0 |a Columbia River White Sturgeon Genetics and Early Life History  |h [electronic resource] :  |b Population Segregation and Juvenile Feeding Behavior, 1987 Final Report. 
260 |a Portland, Ore. :  |b United States. Bonneville Power Administration ;  |a Oak Ridge, Tenn. :  |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,  |c 1988. 
300 |a 88 pages :  |b digital, PDF file. 
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500 |a 06/01/1988. 
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500 |a "DE89001540" 
500 |a Brannon, Ernest L. 
520 3 |a The geographic area of the genetics study broadly covered the distribution range of sturgeon in the Columbia from below Bonneville Dam at Ilwaco at Lake Roosevelt, the Upper Snake River, and the Kootenai River. The two remote river sections provided data important for enhancement considerations. There was little electrophoretic variation seen among individuals from the Kootenai River. Upper Snake river sturgeon showed a higher percentage of polymorphic loci than the Kootenai fish, but lower than the other areas in the Columbia River we sampled. Sample size was increased in both Lake Roosevelt and at Electrophoretic variation was specific to an individual sampling area in several cases and this shaped our conclusions. The 1987 early life history studies concentrated on the feeding behavior of juvenile sturgeon. The chemostimulant components in prey attractive to sturgeon were examined, and the sensory systems utilized by foraging sturgeon were determined under different environmental conditions. These results were discussed with regard to the environmental changes that have occurred in the Columbia River. Under present river conditions, the feeding mechanism of sturgeon is more restricted to certain prey types, and their feeding range may be limited. In these situations, enhancement measures cannot be undertaken without consideration given to the introduction of food resources that will be readily available under present conditions. 89 refs., 7 figs., 11 tabs. 
520 0 |a White Sturgeon Fisheries - Columbia River. 
536 |b 1984BP18952. 
650 7 |a Fishes.  |2 local. 
650 7 |a Life Cycle.  |2 local. 
650 7 |a Genetic Variability.  |2 local. 
650 7 |a Evaluation.  |2 local. 
650 7 |a Baseline Ecology.  |2 local. 
650 7 |a Electrophoresis.  |2 local. 
650 7 |a Hydroelectric Power.  |2 local. 
650 7 |a Juveniles.  |2 local. 
650 7 |a Morphology.  |2 local. 
650 7 |a Progress Report.  |2 local. 
650 7 |a Rivers.  |2 local. 
650 7 |a Sense Organs.  |2 local. 
650 7 |a Animals.  |2 local. 
650 7 |a Aquatic Organisms.  |2 local. 
650 7 |a Biological Variability.  |2 local. 
650 7 |a Body.  |2 local. 
650 7 |a Columbia River.  |2 local. 
650 7 |a Document Types.  |2 local. 
650 7 |a Ecology.  |2 local. 
650 7 |a Electric Power.  |2 local. 
650 7 |a Energy Sources.  |2 local. 
650 7 |a Organs.  |2 local. 
650 7 |a Feeding.  |2 local. 
650 7 |a Power.  |2 local. 
650 7 |a Renewable Energy Sources.  |2 local. 
650 7 |a Streams.  |2 local. 
650 7 |a Surface Waters.  |2 local. 
650 7 |a Vertebrates.  |2 local. 
650 7 |a Hydro Energy.  |2 edbsc. 
710 2 |a University of Washington.  |4 res. 
710 1 |a United States.  |b Bonneville Power Administration.  |4 spn. 
710 1 |a United States.  |b Department of Energy.  |b Office of Scientific and Technical Information.  |4 dst. 
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