Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries 1986 Annual Report written by and published by . This book was released on 1986 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: FY 1986 was the eighth year of a study to determine the distribution, contribution, and value of artificially propagated fall chinook on the Columbia River. Tagging of hatchery fall chinook was completed in FY81. Sampling of sport and commercial marine fisheries from Alaska through California, Columbia River fisheries, and Columbia River hatcheries and adjacent streams occurred in 1986 as planned. Catches and returns of one brood year tagged for this study (1981) could have occurred in 1986. Returns of fall chinook to Columbia River facilities as of December 1, 1986 are 108,154. This return is already the fourth largest of the past seven years. Several facilities (Cowlitz, Grays River, and Washougal) are having the greatest returns since inception of the study. However, Spring Creek and Lewis River hatcheries are having the smallest return. Estimated Catches of coded wire tagged salmonids are available through 1984 for all fisheries except Alaska in 1981 and Washington in 1984. Catch proportions by fishery for the 1978 brood are .01, .39, .34, .07, 0, and .19 for the Alaska, Canada, Washington, Oregon, California, and Columbia River fisheries respectively. Catch proportions for the 1979 brood are similar to those for the 1978 brood (.03, .33, .37, .05, .01, and . 21) for the same fisheries respectively. The proportion of recoveries for the four age groups of 1978-brood fish caught are .07, .69, .23, .01 for the two-through five-year-old chinook respectively.
Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries written by Robert Ramsay Vreeland and published by . This book was released on 1986 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Columbia River Basin Salmon Recovery Efforts written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1993 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries written by Robert Ramsay Vreeland and published by . This book was released on 198? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries written by Robert Ramsay Vreeland and published by . This book was released on 1985 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Contribution of Fall Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries 1989 Final Report written by and published by . This book was released on 1989 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1979 this study was initiated to determine the distribution, contribution, and value of artificially propagated fall chinook salmon from the Columbia River. Coded wire tagging (CWT) of hatchery fall chinook salmon began in 1979 with the 1978 brood and was completed in 1982 with the 1981 brood of fish at rearing facilities on the Columbia River system. From 18 to 20 rearing facilities were involved in the study each brood year. Nearly 14 million tagged fish, about 4% of the production, were released as part of this study over the four years, 1979 through 1982. Sampling for recoveries of these tagged fish occurred from 1980 through 1986 in the sport and commercial marine fisheries from Alaska through California, Columbia River fisheries, and returns to hatcheries and adjacent streams. The National Marine Fisheries Service coordinated this study among three fishery agencies: US Fish and Wildfire Service, Oregon Department of Fish and Wildlife, and Washington Department of Fisheries. The objectives of this study were to determine the distribution, fishery contribution, survival, and value of the production of fall chinook salmon from each rearing facility on the Columbia River system to Pacific coast salmon fisheries. To achieve these objectives fish from each hatchery were given a distinctive CWT. 81 refs., 20 figs., 68 tabs.
Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries written by Robert Ramsay Vreeland and published by . This book was released on 1984 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries 1985 Annual Report written by and published by . This book was released on 1985 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: FY 1985 was the seventh year of an eight-year study to determine the distribution, contribution, and value of artificially propagated fall chinook on the Columbia River. Tagging of hatchery fall chinook was completed in FY81. Sampling of sport and commercial marine fisheries from Alaska through California, Columbia River fisheries, and Columbia River hatcheries and adjacent streams occurred in 1985 as planned. Returns of fall chinook to Columbia River facilities as of September 30, 1985 are 85,222. This return is already larger than three of the past five years. Estimated Catches of coded wire tagged salmonids are available through 1983 for all fisheries except Alaska in 1981 and Washington in 1983. Catch proportions by fishery for the 1978 brood are .01, .41, .34, .07, 0, and .17 for the Alaska, Canada, Washington, Oregon, California, and Columbia River fisheries respectively. The proportion of recoveries for the four age groups of 1978-brook fish caught are .05, .63, .30, .01 for the two-through five-year-old chinook respectively. Contributions to the fisheries per 1000 fish released for all hatcheries combined are 2.7 and 3.6 for the 1978 and 1979 broods respectively. Four years (1980 to 1983) are included in the contribution values for the 1978 brood and three years (1981 to 1983) for the 1970 brood. Spring Creek Hatchery has the greatest contribution to the fisheries of 8.3 and 12.8 fish per 1000 fish released for the 1978 and 1979 broods respectively. The Spring Creek contribution is followed by Stayton Pond, Abernathy, Bonneville and Big Creek at 6.5, 4.2, 2.9 and 2.6 respectively for the 1978 brood and Big Creek, Stayton Pond and Abernathy at 8.4, 6.7 and 4.7 respectively for the 1979 brood. Other facilities have contributions per 1000 releases of approximately 2 or less. These contributions are minimums since all possible fisheries and catch years are not yet included.
Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries written by Robert Ramsay Vreeland and published by . This book was released on 1988 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development Report written by United States. Bonneville Power Administration and published by . This book was released on 1989 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Contribution of Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries 1984 Annual Report written by and published by . This book was released on 1984 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The distribution, contribution, and value of artificially propagated fall chinook on the Columbia River was determined. Total returns of fall chinook to Columbia River facilities in 1984 were 74,401. This was the second smallest return over the past five years. Returns to Bonneville, Spring Creek, Little White Salmon, Klickitat and Klaskanine hatcheries were smaller than any previous year during this study. However, returns to Priest Rapids and Sea Resources hatcheries were greater than in previous years. Final estimated catch values are available through 1982 for British Columbia, Washington, Oregon and Columbia River fisheries. Fall chinook from the Columbia River hatcheries are predominately recovered in these fisheries. The percentages of the 1978-brood fish caught in these fisheries was 40.3, 35.0, 7.5 and 17.2 respectively. Contributions to the fisheries per 1000 fish released for all hatcheries combined were 2.6 and 3.0 for the 1978 and 1979 broods respectively. Three years (1980 to 1982) were included in the contribution values for the 1978 brood and two years (1981 and 1982) for the 1979 brood. Spring Creek Hatchery had the greatest contribution to the fisheries of 8.2 and 12.7 fish per 1000 fish released for the 1978 and 1979-broods respectively. The Spring Creek contribution was followed by Stayton Pond, Abernathy, Bonneville and Big Creek at 6.3, 4.1, 2.9 and 2.6 respectively for the 1978 brood and Big Creek, Stayton Pond and Abernathy at 7.4, 6.2 and 3.9 respectively for the 1979 brood. Other facilities had contributions per 1000 releases of less than 2. These contributions are minimums since all possible catch years are not included. 2 figs., 36 tabs.
Download or read book NOAA Technical Report NMFS written by and published by . This book was released on 1984 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development Report Fiscal Years written by United States. Bonneville Power Administration and published by . This book was released on 1987 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Contribution of Fall Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries Appendix 1989 Final Report written by and published by . This book was released on 1989 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document contains 43 appendices for the Evaluation of the Contribution of Fall Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries'' report. This study was initiated to determine the distribution, contribution, and value of artificially propagated fall Chinook Salmon from the Columbia River.
Download or read book Evaluation of the Contribution of Fall Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries written by Robert Ramsay Vreeland and published by . This book was released on 1989 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
