1,720,960 research outputs found
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Deschutes River summer steelhead ecology : July 1, 1969 - December 1, 1970
Results of the first year of the Deschutes summer steelhead ecology and hatchery assessment. “This report covers the first year of a study of Deschutes summer steelhead ecology and factors limiting efficiency of hatchery production of summer steelhead smolts” (Contents)
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A summary of coastal cutthroat trout studies, 1962-1965
This report summarizes research on coastal cutthroat trout from the beginning of more intensive studies in 1962 through 1965. Early work involved studies of the growth, survival and catch of hatchery-reared cutthroat in coastal lakes, with a change in 1965 to research in coastal streams and estuaries. Research is continuing, with increased emphasis at present on the life history patterns of native cutthroat stocks and on the role of estuaries in the life of the sea-run cutthroat trout
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A review of rainbow trout stocking and catch statistics in Oregon streams, 1952-1975
This report consists of tables summarizing data regarding streams receiving hatchery-reared rainbow trout since 1952. It includes data such as sources, sizes of fish, and water temperatures at the planting sites. It also averages data from creel reports from 1965-1972
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The natural rearing of juvenile salmonids in impoundments, 1961-66
This document discusses the influence of density, fertilization, and the environment on the growth, survival, and yield of salmonid fry reared in freshwater impoundments
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Ecology and management of coastal cutthroat trout in Oregon
Federal Aid to Fish Restoration
Project F-72-R
Final ReportBiologists have allotted only minor attention to the cutthroat over the years, as evidenced by a lack of published information. Biological characteristics of wild adult populations, essential to management, were virtually unknown on Oregon's major cutthroat streams prior to this study. Hatchery fish were routinely stocked with little knowledge of the fate of the released fish, of their influence on wild populations, or of their contribution to the angler. Another question among biologists was whether management of the spring put-and-take fisheries or the fall sea-run fisheries should be emphasized on coastal streams.
To answer these questions the Game Commission began in 1965 , with the aid of federal funds through the Dingell -Johnson Act (Project F-72-R), a research program with the principal objective of determining the most efficient use of hatchery stocks of cutthroat in coastal streams. The Alsea, Siuslaw and Nestucca rivers, spanning an 83-mile length of the central Oregon coast, were selected for study as each sustained important spring and fall fisheries (Figure 1 ). A second objective of the study was to add to the biological knowledge of wild sea-run populations in the rivers through catch sampling, netting and tagging, and other studies
Ecology and management of summer steelhead in the Rogue River
Title from PDF title page (viewed on July 2, 2018)."Federal aid to fish restoration, project AFS 31, final report."This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 47-48).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
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The Biology of the winter steelhead of the Willamette River, Oregon
This report the sizes for winter steelhead runs of the Willamette River and many of its tributaries from 1958-69, giving numbers and suggesting possible reasons for small runs.Keywords: Salmo gairdneri gairdneri, Oncorhynchus mykis
Annual progress report, anadromous fish project
Title from PDF title page (viewed on June 20, 2017)."AFS-57-1.""Project period: July 1, 1970-June 30, 1971."This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Funded in part with Anadromous Fish Act (P.L. 89-304) funds through the Bureau of Sport Fisheries and Wildlife. Contract no. 14-16-0001-4138.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Annual progress report, anadromous fish project
"Project no.: AFS-31.""Contract no.: 14-16-0001-4119.""Period covered: May 1, 1968 to September 1, 1971."Title from PDF title page (viewed on June 28, 2018).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.This project was financed in part with Anadromous Fish Act (PL 89-304) funds through the Bureau of Sport Fisheries and Wildlife.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
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