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176 - 200 of 2700 Items << < 3 4 5 6 7 8 9 10 11 12 > >>
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A debate about the level of organic contaminants in farmed salmon relative to wild salmon was started with an article published the journal Science in January 2004. Concentrations of polychlorinated biphenyls (PCBs) and other contaminants were...
2006-11 (iso8601)
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The Agricultural Experiment Station
Records document agricultural research in Oregon from the founding of the
Experiment Station in 1880s. Research activities were conducted on the Oregon
State University campus and at branch stations...
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The Agricultural Experiment Station
Records document agricultural research in Oregon from the founding of the
Experiment Station in 1880s. Research activities were conducted on the Oregon
State University campus and at branch stations...
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EXECUTIVE SUMMARY
Limited historical references indicate that bull trout Salvelinus confluentus in Oregon were once widely spread throughout at least 12 basins in the Klamath River and Columbia River systems. No bull trout have been observed...
1997-10-01
2007-12-12 2005-08-16 |
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Causes for Depletion of Runs
The extent of depletion in Columbia River salmon runs cannot be determined because of inadequate data. The decline in the total number of fish entering the river, however, is believed to be substantially greater than...
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An oral vaccine was developed for control of vibriosis
in Pacific salmon. The vaccine consists of a lyophilized
sonicate of cells of Vibrio anguillarum, the causative
agent of this disease. The preparation was incorporated
into a ration and fed to...
1972-04-12 (iso8601)
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Most parasites and their hosts live in a balance within their environment; however a disease outbreak can occur when either the parasite, host, or environment, are perturbed. Myxozoan parasites are associated with a wide variety of cultured and...
2013-09-26 (iso8601)
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blocks of more productive agricultural lands in the Cowlitz and Lewis basins. The bottom lands along the lower courses of these streams are similar to the new alluviums of the Willamette Valley but are less extensive.
Red soils comparable to...
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and Weiser Rivers to the edge of the mountains. Lesser acreages are found along the streams of the other agricultural valleys of the area. These soils are brown to dark-brown in color, with lighter-colored subsoils. Although in most cases the...
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This thesis reports the results of a study on the influence of biologically
stabilized kraft mill effluent (SKME) on the food relations and
production of juvenile chinook salmon, Oncorhynchus tschawytscha
(Walbaum), in laboratory streams....
1969-09-03 (iso8601)
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The purpose of this study was to characterize Cytophaga
psychrophila isolates obtained from coho fingerlings with low temperature
disease collected at selected hatcheries in Oregon. In
addition, cultures thought to be related to this bacterium...
1971-08-16 (iso8601)
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Record low runs of chinook salmon to the Yukon River in the late 1990s intensified concerns about salmon bycatch by U.S. groundfish fisheries in the eastern Bering Sea and Aleutian Islands (BSAI). We estimated the bycatch of Yukon River chinook...
2012-03-19
2012-03-19 2024-11-21 |
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The collection is comprised primarily of
an early television series,
The Washington State Reporter, which was
produced by the National Bank of Commerce and aired on KING-TV (Seattle, Wash.)
from November 1951 to circa 1956. The...
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"Serial no. 107-39."
2024-11-21
2005-03-17 2004-12-21 |
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Ecological interactions between natural and
hatchery juvenile salmon during their early marine
residence, a time of high mortality, have received little
attention. These interactions may negatively influence
survival and hamper the ability of...
2011-06-04 (iso8601)
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The coded wire tag (CWT) database contains detailed information on millions of Pacific salmon
Oncorhynchus spp. released from hatcheries or smolt traps and recovered in the north Pacific Ocean and its tributaries. I used this data set to examine...
2010-01 (iso8601)
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Chinook salmon, Oncorhynchus tshawytscha, returning to the Yukon River basin and other large river systems in western Alaska have declined dramatically since the late 1990s. This continuing trend has raised concerns over the future status of the...
2013-08-01 (iso8601)
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mental water to 12,370 acres of land now irrigated and the development of 9,060 acres of new land.
The Challis project on the main stream in the upper Salmon River basin would supplement the current water supply on 2,850 acres and bring under...
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1906-07. Dr. in Ballard H. completed, making total of 340,000 c. y. removed, 07, 2221.
1907-08. Mainten. and surs., and H. lines estab. for Lake Union, 05, 2298.
1908-10. Mainten., 09, 2257; 10, 2424.
1910-11. Borings made at lock site,...
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The Bond Papers document the fisheries
research conducted by OSU Fisheries and Wildlife Professor Carl E.
Bond.; Biographical Note:; Alumnus and ichthyologist Carl Bond received B.S. and M.S. degrees from
Oregon State College in 1947...
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Photographs, clippings, writings and correspondence concerning a Salmon industry executive; Guy Graham was born on September 23, 1893. He was first hired by
Libby, McNeill & Libby in 1913 as a cannery helper. During his career with
Libby,...
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"Submitted to Klamath Falls Resource Area, Bureau of Land Management, Lakeview District, Klamath Falls, Oregon." ; "Contract no.: HAP032021."; Includes bibliographical references (p. 178-200)
2024-11-21
2008-03-28 2007-02-16 |
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I examined habitat electivity and movement patterns of adult spring chinook
salmon at microhabitat and channel unit spatial scales, and seasonal to annual temporal
scales in seven streams in the Grande Ronde, John Day, and Imnaha basins. The...
1998-11-30 (iso8601)
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We examined 1454 juvenile Chinook salmon, Oncorhynchus tshawytscha (Walbaum), captured in nearshore waters off the coasts of Washington and Oregon (USA) from 1999 to 2004 for infection by Renibacterium salmoninarum, Nanophyetus salmincola Chapin...
2015-04 (iso8601)
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The effects of sublethal concentrations of kraft mill effluents
(KME) on the growth, food consumption, and swimming ability of
juvenile chinook salmon, Oncorhynchus tschawytscha (Walbaum),
were studied from February 1966 to May, 1967.
The KME used...
1968-05-07 (iso8601)
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