Results
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1251 - 1275 of 2700 Items << < 46 47 48 49 50 51 52 53 54 55 > >>
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ADF&G
2008-10-03
2008-10-03 1978-11-23 |
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The original plans for the methodology study did not include provisions for a history subproject. However, as studies progressed on some of the other subprojects, it became evident that a general history of Salmon Basin was desirable. The writer...
1971-03-01
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ADF&G
2008-10-03
2008-10-03 1977-11-23 |
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The Oregon Fish Commission opposed construction at this time any dam in the middle of Snake River which would block salmon runs.
1953-11-18
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2008-10-03
2008-10-03 1974-11-23 |
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2008-10-03
2008-10-03 1973-11-23 |
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1
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California
Oregon
Cover Photo: Lower Klamath
National Wildlife Refuge at sunset
Tupper Ansel Blake/ USFWS
Map Detail Area:
Upper Klamath
River Basin
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T he Klamath River Basin presents
numerous challenges as well as
opportunities...
2024-11-23
2005-02-04 2005-01-27 |
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This report presents information on biogeography and broad-scale ecology (macroecology) of selected fungi, lichens, bryophytes, vascular plants, invertebrates, and vertebrates of the interior Columbia River basin and adjacent areas. Rare plants...
1998-11-23
2006-11-30 2005-09-22 |
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1. There is no evidence of a decline in the striped bass population of Coos Bay.
2. The striped bass, a species introduced to the West Coast of North America, has been important as a recreational and commercial fish in Coos Bay since the late...
1950 (iso8601)
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We recovered passive integrated transponder (PIT) tags from nine piscivorous waterbird colonies in the Columbia River basin to evaluate avian predation on Endangered Species Act (ESA)-listed salmonid Oncorhynchus spp. populations during 2007–2010....
2012 (iso8601)
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Five species of aquatic organisms were exposed to TCDD. Lethal effects of initial exposure to coho salmon of 23.4 nanogram TCDD/gram fish wet weight (23.4 ng/g), or equivalent to 100 nanogram
per liter (100 ng/l) TCDD in water, for 24 hours were...
1974-04-16 (iso8601)
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1957-08-02 (iso8601)
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"Kokanee salmon, Oncorhynchus nerka (Walbaum), are well distributed over much of central and eastern Oregon but are relative newcomers to lakes along the Oregon coast. Kokanee were first introduced into coastal waters in 1952 when 51,802 fry were...
1965-08-01 (iso8601)
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"Final report to the U.S. Environmental Protection Agency. Funds supporting this study have been provided by Region 10 of the U.S. Environmental Protection Agency, Seattle, WA."
1990-02-05 (iso8601)
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A study on the cellular differentiation of the gill structure in
juvenile coho salmon (O. kisutch) with emphasis on the excretion of
monovalent ions was performed upon animals maintained under both
seawater and freshwater environments.
1. The...
1965-09-27 (iso8601)
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This thesis describes the viral susceptibility of two cell
cultures established from embryonic tissue of salmonid
fish, chinook salmon line CHSE-114 and steelhead trout line STE-137. The viruses used were Oregon sockeye salmon virus (OSV),...
1968-05-11 (iso8601)
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A year-long caged study the belted kingfisher (Megaceryle
alcyon) combined time-budget and food-balance techniques to obtain
data on daily energy consumption (DEC) throughout an annual cycle.
This study tested the hypothesis that seasonal...
1977-08-09 (iso8601)
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Focusing on the Columbia River as part of Pastoral Letter Steering Committee, traveling around the Northwest to
public hearings and working as an environmental scientist, has given me a chance to think and hear a lot about salmon.
My more recent...
2001 (iso8601)
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