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Subject series H. Forestry 6
2024-11-22
2007-12-05 2007-07-25 |
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The objective of this research was to study the effects of increased water temperature characteristic of clearcut watersheds of Pacific coastal streams upon the growth rate of juvenile coho salmon. The natural temperature fluctuations of the...
1971-05-10 (iso8601)
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Coho salmon (Oncorhynchus kisutch) were exposed to sublethal levels of a water-soluble fraction (WSF) of Cook Inlet crude oil for periods ranging from 18 to 31 days, at four acclimation temperatures. The fatty acid composition of phospholipids...
1980-04-09 (iso8601)
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This study investigates a possible structural break in the relationship between the price of Norwegian salmon
exported to the EU and prices of Chilean salmon exported to the US. A structural break is expected in the spring/summer
1997 because...
2001 (iso8601)
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4-nonylphenol (NP), a surfactant degradation product, is an unregulated,
ubiquitous aquatic contaminant and endocrine disruptor, for which aquatic life
criteria are currently under development by U.S. EPA. The effects of NP on
estuarine amphipods...
2002-08-09 (iso8601)
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Oregon Revised Statute 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 submits...
2001-02-09 (iso8601)
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full environmental and economic costs of energy alternatives; emphasize energy conservation, renewable energy development and high efficiency generation; and include a program to offset the effects of the dams on salmon and other fish and wildlife...
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Confluence of Middle Fork and Main Salmon River
Turbidity of main stream is shown 2003-01-01 |
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Recovery efforts for Snake River sockeye salmon were initiated in 1991 in response to a decline in the number of returning adults and listing of this population under the Endangered Species Act. We examined limnological conditions in five nursery...
1995-01-01
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Recovery efforts for Snake River sockeye salmon were initiated in 1991 in response to a decline in the number of returning adults and listing of this population under the Endangered Species Act. We examined limnological conditions in five nursery...
1995-01-01
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In July and August 1961, nine lots of 500 juvenile silver salmon each were subjected to one-, two-, three- and four-week periods of complete starvation. The three- and four-week periods produced the best growth checks for that time of year, but...
1963-06 (iso8601)
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Includes bibliographical references; "GAO-05-804"
2024-11-22
2006-11-28 2006-01-27 |
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CRS issue brief; "Updated May 19, 2005."
2005-05-19
2005-07-22 2005-06-27 |
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Title from cover; "May 1991"
1991-11-22
2004-10-21 2004-06-16 |
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An approach to understanding and managing anadromous salmon, steelhead,
and sea-run cutthroat trout (Oncorhynchus spp.) based on life history and
evolutionary adaptive capacities of species and stocks is presented. Species, stocks,
and local...
1993-06-11 (iso8601)
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Successful fertilization of fresh steelhead trout, pink salmon, kokanee, chum salmon, fall chinook salmon, and coho salmon eggs with cryopreserved sperm is reported in this thesis. A mean percent fertilization greater than 50 percent was achieved...
1975-05-07 (iso8601)
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Early ocean residence is assumed to be a critical period for juvenile Pacific salmon Oncorhynchus spp. However, the specific mechanisms influencing growth and survival in the ocean have not been identified for most populations. Therefore, three...
2010-11-16 (iso8601)
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Efforts to manage stocks of salmonids in Pacific Northwest stream systems are complicated by the occurrence of several runs of a species thought to represent races rearing sympatrically as juveniles. In order to collect the population statistics...
1978-05-02 (iso8601)
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Research on regulatory mechanisms in biological populations often focuses on environmental covariates. An integrated
approach that combines environmental indices with organismal-level information can provide additional insight on
regulatory...
2014-06-12 (iso8601)
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One aspect of diadromy that has received little attention is buoyancy regulation in fish moving between freshwater and marine environments. Because of density differences between the two water types, fish must alter their whole-fish density (WFD)...
2008-05 (iso8601)
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This research was initiated to investigate the effects of various
parameters on the immune response of juvenile coho salmon to Aeromonas
salmonicida. The antibody response and development of protective
immunity in juvenile coho salmon were...
1971-11-30 (iso8601)
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The ex-vessel coho salmon market has been paid scant attention
in the study of the salmon resources. This study is an attempt to
advance an understanding of the variations of ex-vessel prices and
landings during the coho season as well as between...
1978-11-17 (iso8601)
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Diseases caused by parasites are recognized as significant sources of mortality in wild fish populations. I assessed the impacts of multispecies parasitism on a threatened stock of juvenile coho salmon (Oncorhynchus kisutch). A crucial...
2011-01-04 (iso8601)
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The myxozoan parasite, Ceratomyxa shasta, is the most significant pathogen of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Klamath River, CA, USA. This parasite requires two hosts - a freshwater polychaete (Manayunkia speciosa) and a...
2009-11-24 (iso8601)
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