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526 - 550 of 2700 Items << < 17 18 19 20 21 22 23 24 25 26 > >>
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The effects of three levels of dissolved oxygen (8, 5 and 3 mg/l)
upon the feeding, growth and bioenergetics of juvenile coho salmon,
Oncorhynchus kisutch (Walbaum), were determined in laboratory
studies. Experiments with individual fish were...
1974-12-10 (iso8601)
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Historic changes that have taken place on Oregon's commercial
salmon fisheries are described in terms of their effects on the efficiency
of fishermen. This historical analysis provides a background
for comparative efficiency studies of Columbia...
1975-12-17 (iso8601)
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Plasma concentrations of cortisol, a glucocorticoid hormone that
is immunosuppressive in mammals, increase during stress and
smoltification of salmonids. There was a reduction in the ability of
lymphocytes to generate antibody producing cells...
1989-04-27 (iso8601)
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The myxozoan parasite Ceratomyxa shasta is a significant pathogen of juvenile salmonids in the Pacific Northwest of North America and is limiting recovery of Chinook (Oncorhynchus tshawytscha) and coho (O. kisutch) salmon populations in the...
2012-05 (iso8601)
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We are conducting studies on the impacts of parasites on Oregon coastal coho salmon (Oncorhynchus kistuch). An essential first step is documenting the geographic distribution of infections, which may be accomplished by using different methods for...
2011-12 (iso8601)
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Oregon Revised Statute (ORS) 541.409, which created the Independent Multidisciplinary Science Team (IMST), specifies that agencies are to respond to the recommendations of the IMST, stating “(3) If the Independent Multidisciplinary Science Team...
2009-11-09 (iso8601)
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This is the fourth report on the Oregon Plan for Salmon and Watersheds. The first three reports focused on people – their
stories and their efforts to restore watershed health and recover listed fish species. While these earlier reports contained...
2003 (iso8601)
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Wind-laid materials blanket much the greater part of the plain. These loessal materials, largely moved into the upper Snake Basin by prevailing winds from deserts and ancient lake beds to the west, range in depth from a thin sprinkling to heavy...
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tional survey of the Columbia River Basin, and (2) to make studies of specific recreational requirements, facilities, and benefits of the developments in the comprehensive plan.
133. Investigation of fish and wildlife resources in relation to...
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promptly high jacked by the Endangered Species Act process. As the final Environmental Impact Statement of the System Operation Review said in 1995:
While one of the primary goals of the SOR is to decide on a coordinated operating strategy to...
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activities that affect salmon habitat, including the operations of the Columbia River dams.65.65 Together with the conservation principle quoted above, the tribes can argue with some force that treaty fishing rights cannot be limited unless...
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I. Introduction
William Jackson Turner may have had it wrong when he announced at the 1893 Columbian Exposition in Chicago that the American frontier had closed, at least if he intended to include the Columbia River Basin.' In the Columbia... |
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From John Cobb field notebook: Salmon in Moclips, Wash. cannery of Pacific Fisheries and Packing Co., 1915
2024-11-22
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of the hatchery and related facilities appropriate to the Trinity River Project will be developed during definite planning. If found feasible, added production over that supportable under natural conditions will be planned to enhance anadromous...
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The mechanisms of mortality during critical life stages of fish are not well-understood and, for many species, it is not clear if the mechanisms are similar for naturally and artificially propagated individuals. For Chinook salmon (Oncorhynchus...
2013-03-12 (iso8601)
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Programmatic Environmental Assessment Summary This Environmental Assessment (EA) provides compliance with the National Environmental Policy Act (NEPA) for restoration actions undertaken by the US Fish & Wildlife Service's Klamath Basin Ecosystem...
2024-11-22
2005-02-01 2004-06-16 |
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Netting salmon from trap in flume to examine "ripeness" for spawning, at Leavenworth station.
1942-09-18
2024-11-22 |
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Phenotypic similarities of coho salmon (Oncorhynchus kisutch)
stocks from Oregon, Washington, and California were compared using
agglomerative and divisive cluster analyses. The phenotypic characters
evaluated included the following: 1) the...
1979-08-15 (iso8601)
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The development of empirical models and analysis of retailers' conduct as sellers have received the greatest attention by economists. However, the development of empirical models and analysis of retailers' role as buyers have received considerably...
2006-11 (iso8601)
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The occurrence and distribution of fish viruses in Oregon were
determined by the examination of anadromous and fresh water salmonids.
Infectious pancreatic necrosis virus (IPNV) was isolated and
identified from asymptomatic adult coho...
1975-09-22 (iso8601)
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Changes in the Oregon salmon, crab and shrimp fisheries were
documented from 1967 to 1980. The related socio-economic conditions in
fishing communities were described. Trends indicated that the overall
importance of fisheries to port communities...
1982-05-25 (iso8601)
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eral valleys along the Powder River and its north fork. The largest of these is the Baker Valley in the upper middle part of the drainage area.
Above Baker two irrigated valleys contain approximately 6,000 acres of irrigated land. The upper, or...
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hydropower system operations and recovery plan implementation.' But, in 1997 after the federal court upheld the Fisheries Service biological opinion on hydropower operations based in part on the Service's implementation process, the process began...
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The Henry's Fork. The Henry's Fork Watershed Council in northeast Idaho, near Yellowstone National Park, is one of the Basin's better-known watershed planning processes. The Henry's Fork is a world-class trout stream, cherished by anglers: The...
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