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651 - 675 of 2700 Items << < 22 23 24 25 26 27 28 29 30 31 > >>
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Morphological, cultural, biochemical and serological characteristics of
33 bacterial strains, thought to be similar to Cytophaga psychrophila, the
causative agent of bacterial cold-water disease were compared. Bacterial
strains identified as C....
1987-08-13 (iso8601)
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The endangered salmon crisis in the Pacific Northwest has researchers scouring the scientific and institutional literature for data, analysis and information. The accessible publications are the foundation for much of the current work and debate....
1994 (iso8601)
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by sport fishermen in the Columbia River at Wenatchee and they could very well be present in the large Wanapum reservoir.
Section 8B, Item 10
The first sentence of Item 10 is satisfactory. Sentence two is inaccurate since migratory fish...
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ideological problems is undeniable. If the data say low streamflows and high temperatures undermine productivity, there is less room to evade the obvious solution.
Bonneville is funding the development of a more sophisticated analytic tool for...
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goes from one side to another. Unexpectedly the steamer will head straight for the mountains of the opposite bank, and you wonder if you are going to land when, with a sudden turn of the wheel, the pilot disappoints you once again. The channel is...
2004-03-02
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On pack trip going down Middle Fork of the Salmon River below Camas Creek confluence
1941-06-21
2003-01-01 |
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Master scanned with Epson 1640XL at 800 dpi. Image manipulated with Adobe Photoshop 7.0.
1941-06-21
2003-01-01 |
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Ten foot impassable falls on Salmon Creek, tributary to Middle Fork Willamette River Photo shows left-hand side of falls;1937-09-01
2024-11-22
2003-01-01 |
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Established in 1873 by J.S. Megler.
Caption on mount: J.G. Megler and Co.'s Cannery. Columbia River, Washington PH Coll 293.56 |
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A low sand island ideal of beach-seining, located at the mouth of the Columbia River across Baker Bay.
PH Coll 293.4 Caption on mount: Seining for salmon, Sand Island, Columbia... |
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Carbon (C) and nitrogen (N) elemental and nitrogen isotopic ratios were determined for bulk organic matter in surface sediments of 11 sockeye salmon (Onchorynchus nerka) nursery lakes in British Columbia, Canada. Chitinous exoskeletons of Bosmina...
2006-09-14
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The Frederick Nelson Journals and Flies consists of 13
journals and flies created by unknown artisans. The journals describe Nelson’s
fishing excursions in Montana and around the United States and Canada. Also...
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Papers of a
fisheries biologist in charge of the design for fish protection at Bonneville
Dam; Harlan Holmes was born in 1898. He was the fisheries biologist in
charge of the design for fish protection at Bonneville Dam. He received...
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INPFC
2008-10-03
2008-10-03 1991-11-22 |
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NMFS
2008-10-03
2008-10-03 1989-11-22 |
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The effectiveness of flow augmentation in aiding conservation and recovery of Snake River salmonid populations listed under the Endangered Species Act is questionable. The purpose of flow augmentation has been largely to increase the velocity...
2000-09-01
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Samples, consisting of scales, length and weight measurements, and sex determinations of chum, pink, and silver salmons, were taken from the commercial catch in the Columbia River in 1914. Five hundred eighteen chum scales were examined. All fish...
1944 (iso8601)
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We evaluated the impact of predation on juvenile steelhead Oncorhynchus mykiss and yearling and subyearling Chinook Salmon O. tshawytscha by piscivorous waterbirds from 11 different breeding colonies in the Columbia River basin during 2012 and...
2016 (iso8601)
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The Department of the Interior, Klamath River Basin, Work Plans and Reports
2024-11-22
2005-05-02 2005-05-02 |
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Fish scales have long been used to reconstruct fine-scale habitat transitions such as the movement of juvenile fish
from freshwater, estuary, and ocean environments. Despite the importance of life history information to fisheries
management and...
2015 (iso8601)
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Stress, including extreme or rapidly changing temperatures, are known to have deleterious effects on fish health and physiology. This thesis examines the combined effects of elevated acclimation temperature and acute handling stress on the number...
2000-11-28 (iso8601)
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We used microsatellite DNA data and genetic stock identification methods to delineate the temporal and spatial distributions of juvenile Chinook Salmon Oncorhynchus tshawytscha occupying coastal habitats extending from central Oregon to northern...
2015 (iso8601)
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Various methods have been developed to mitigate the adverse effects of the Federal Columbia River Power System on juvenile Pacific salmon out-migrating through the Columbia River basin. In this study, we found that hatchery-reared spring Chinook...
2011-03 (iso8601)
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