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1076 - 1100 of 2700 Items << < 39 40 41 42 43 44 45 46 47 48 > >>
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This Norman Strung Papers are made up primarily of literary
manuscripts written by Norman Strung. There are rough and final drafts of the books he wrote
along with galley proofs. In addition to his feature article manuscripts is...
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Papers of a former United States Congressman for Washington state.; Thor Carl Tollefson (1901-1982), Representative to Congress from
Washington State, was born in Minnesota and later moved to Tacoma, Washington
in 1912. In 1930, he...
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ADF&G
2008-10-03
2008-10-03 1984-11-23 |
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The F. Ross Brown Papers consist of
materials generated and assembled by Brown documenting his student years
at Oregon Agricultural College, agricultural work in the 1910s, and
participation in the Oregon Wildlife Federation and the National...
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2008-10-03
2008-10-03 1980-11-23 |
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The writer of this report has been assigned the task of preparing information for the navigation and flood control subprojects, the latter being the subject of this report. The objectives of the flood control study are: 1. To determine the flood...
1970-02-01
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This report is a subproject of an overall study to try to provide a better methodology for evaluating wild and scenic rivers for possible inclusion in a National Wild and Scenic Rivers System. The Salmon River in Idaho has been chosen as the basis...
1971-06-01
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A fish hatchery was built on the Salmon River and began operating in late 1976. The early part of this study describes pre-hatchery status of salmonids in the river. Later work formulated a hatchery-rearing program.
1979 (iso8601)
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A study was undertaken in the fall of 1948 by the Oregon Fish Commission to determine the possible presence and importance of a delay in the migration of adult chinook salmon (Oncorhynchus tshawytscha) at Bonneville Dam on the Columbia River....
1956 (iso8601)
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Dams have contributed to the decline of migratory fishes by blocking access to historical habitat. The active transport (trap and haul) of migratory fish species above existing dams can sometimes support population recovery when the use of fish...
2015-09 (iso8601)
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Abstract Quigley, Thomas M.; Haynes, Richard W.; Graham, Russell T., tech. eds. 1996. Integrated scientific assessment for ecosystem management in the interior Columbia basin and portions of the Klamath and Great Basins. Gen. Tech. Rep....
1996-11-23
2005-03-17 2005-02-26 |
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Captive rearing programs (hatcheries) are often used in conservation and management efforts
for at-risk salmonid fish populations. However, hatcheries typically rear juveniles in environments
that contrast starkly with natural conditions, which...
2015-03-05 (iso8601)
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Dramatic changes in the physical and biological conditions off Washington and Oregon,
USA, have occurred since 1998, including extreme El Niño (warm) and La Niña (cool) years, high and low Columbia River flow years, a major intrusion of subarctic...
2005-08-15 (iso8601)
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Native to the Pacific Northwest, Ceratomyxashastais a myxosporeanparasite that infects wild and cultivated salmon and has a significance impact on its population in the Klamath River basin. The study suggests that the transmission of mixed...
2013-06-07 (iso8601)
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Japan has about 10% and 15% share for the consumption and trade of marine products respectively, and the trend has
significant impacts on world markets. Thus the purpose of this article is to estimate the income elasticity of the demand, that...
2001 (iso8601)
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Bankfull discharge is an important indicator of streamfiow and affects
physical instream habitat. Geographic Information Systems (G IS), hydrologic
modeling, and statistical analysis were utilized to assess the relationship of
bankfull discharge...
2000-04-06 (iso8601)
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New coast and river craft registered at Astoria, 8; tonnage, 222.44.
The above statements include those vessels twice discharging or receiving part cargo at Astoria and Portland, which class is principally made up of the San Francisco passenger...
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counts from the game preserve on Sauvie Island indicate the popularity of the area. In 1964, over 10,000 hunter-days were recorded in this one area.
FISHERY RESOURCES
One of the outstanding uses of the Columbia River is the sport and...
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Irrigation.--Within the Klickitat Basin, opportunity for increase in irrigated acreage is limited to expansion in the Glenwood area. By enlarging the existing main canal and extending it to intercept the west fork of the Klickitat River,...
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Notwithstanding the quantity of ink that has been spilt over such questions, only a few things are clear. There was significant over-fishing and habitat disturbance in the Columbia River Basin long before the mainstem dams were built. Snake River...
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paved, this summer. The Sandy river is crossed, the Portland Auto Club House is passed, and an easy ascent is made to Chanticleer at an elevation of over nine hundred feet. The term "easy ascent" is used advisedly, for this part of the Columbia...
2004-03-02
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Master scanned with Epson 1640XL at 800 dpi. Image manipulated with Adobe Photoshop 7.0.
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