Download or read book Yakima River Spring Chinook Enhancement Study Fisheries Resource Management Yakima Indian Nation written by Larry Wasserman and published by . This book was released on 1984 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yakima River Spring Chinook Enhancement Study Fisheries Resource Management Yakima Indian Nation1983 Annual Report written by and published by . This book was released on 1984 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose was to evaluate enhancement methodologies that can be used to rebuild runs of spring chinook to the Yakima River system. In January, 1983, 100,000 fish raised at Leavenworth National Fish Hatchery were transported to Nile Springs Rearing Ponds on the Naches River. These fish were allowed a volitional release as smolts in April. An additional 100,000 smolts were transported from Leavenworth Hatchery in April and immediately released to the Upper Yakima River. Relative survival of smolts from their points of release to a trap at Prosser (RM48) was 1.69:1 for fish from Nile Springs, versus the trucked smolts. The fish from Nile Springs arrived at Prosser and McNary Dam approximately 1 week earlier than the transported fish. To better determine the magnitude and location of releases, distribution and abundance studies were undertaken. There is a decrease in abundance from upstream areas over time, indicating a general downstream movement. In the Naches System, the lower Naches River is heavily utilized by juvenile spring chinook during the early summer. A preliminary study evaluated physical limitations of production. On a single evening 67 fish were killed on diversion screens at Chandler Canal. This constituted 5.7% of the wild spring chinook entering the canal and 8.2% of the fall chinook. The larger hatchery spring chinook sustained a 2.3% loss. Adult returns resulted in 443 redds in the Yakima System, with 360 in the Yakima River and 83 in the Naches System.
Download or read book Yakima River Spring Chinook Enhancement Study 1991 Final Report written by and published by . This book was released on 1991 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: The population of Yakima River spring chinook salmon (Oncorhynchus tschawytscha) has been drastically reduced from historic levels reported to be as high as 250,000 adults (Smoker 1956). This reduction is the result of a series of problems including mainstem Columbia dams, dams within the Yakima itself, severely reduced flows due to irrigation diversions, outmigrant loss in irrigation canals, increased thermal and sediment loading, and overfishing. Despite these problems, the return of spring chinook to the Yakima River has continued at levels ranging from 854 to 9,442 adults since 1958. In October 1982, the Bonneville Power Administration contracted the Yakima Indian Nation to develop methods to increase production of spring chinook in the Yakima system. The Yakima Nation's current enhancement policy attempts to maintain the genetic integrity of the spring chinook stock native to the Yakima Basin. Relatively small numbers of hatchery fish have been released into the basin in past years. The goal of this study was to develop data that will be used to present management alternatives for Yakima River spring chinook. A major objective of this study is to determine the distribution, abundance and survival of wild Yakima River spring chinook. The second major objective of this study is to determine the relative effectiveness of different methods of hatchery supplementation. The last three major objectives of the study are to locate and define areas in the watershed that may be used for the rearing of spring chinook; to define strategies for enhancing natural production of spring chinook in the Yakima River; and to determine the physical and biological limitations on production within the system. 47 refs., 89 figs., 67 tabs.
Download or read book Programmatic EIS Yakima River Basin Water Enhancement Phase 2 Project written by and published by . This book was released on 1999 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yakima River Spring Chinook Enhancement Study Appendices 1991 Final Report written by and published by . This book was released on 1991 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document consists of the appendices for annual report DOE/BP/39461--9 which is summarized as follows. The population of Yakima River spring chinook salmon (Oncorhynchus tschawytscha) has been drastically reduced from historic levels reported to be as high as 250,000 adults (Smoker 1956). This reduction is the result of a series of problems including mainstem Columbia dams, dams within the Yakima itself, severely reduced flows due to irrigation diversions, outmigrant loss in irrigation canals, increased thermal and sediment loading, and overfishing. Despite these problems, the return of spring chinook to the Yakima River has continued at levels ranging from 854 to 9,442 adults since 1958. In October 1982, the Bonneville Power Administration contracted the Yakima Indian Nation to develop methods to increase production of spring chinook in the Yakima system. The Yakima Nation's current enhancement policy attempts to maintain the genetic integrity of the spring chinook stock native to the Yakima Basin. Relatively small numbers of hatchery fish have been released into the basin in past years. The goal of this study was to develop data that will be used to present management alternatives for Yakima River spring chinook. A major objective of this study is to determine the distribution, abundance and survival of wild Yakima River spring chinook. The second major objective of this study is to determine the relative effectiveness of different methods of hatchery supplementation. The last three major objectives of the study are to locate and define areas in the watershed that may be used for the rearing of spring chinook; to define strategies for enhancing natural production of spring chinook in the Yakima River; and to determine the physical and biological limitations on production within the system.
Download or read book Yakima River Spring Chinook Enhancement Study written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yakima River Spring Chinook Enhancement Study Appendices written by D. E. Fast and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Run Size Forecast for Yakima River Adult Spring Chinook 2020 written by Bill Bosch and published by . This book was released on 2019 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yakima River Spring Chinook Enhancement Study 1987 Annual Report written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The smelt outmigration was monitored at wapatox on the Naches River and Prosser on the lower Yakima. The spring outmigration at Wapatox was estimated to be 16,141 smolts. The 1987 spring outmigration of wild spring chinook from the Yakima Basin was estimated to be 251,975 smolts at Prosser. The survival from egg to smelt was calculated using the 1985 redd counts and the 1987 smolt outmigration at Prosser. The estimated survival was 4.16%, which gives a mean egg to smolt survival over four years of 6.32%. In 1987 a total of 3,683 adult and 335 jack spring chinook salmon returning to the Yakima River were counted at Prosser fish ladder. This gives a total of 4,018 salmon returning to Prosser Dam. The median dates of passage were May 12 and May 16 for adults and jacks respectively. An additional 372 fish were estimated to have been caught in the Yakima River subsistence dipnet fishery below Horn Rapids and Prosser Dams. Therefore, total return to the Yakima system was 4,390 spring chinook salmon. Spring chinook were counted at Roza Dam from May 1 to September 30, 1987. Passage at Roza Dam was 1,610 adult and 67 jack spring chinook for a total of 1,677 wild fish. The median dates of passage at Roza Dam were May 29 and May 26 for spring chinook adults and jacks respectively. The smolt to adult (S{sub sa}) survival was calculated based on the 1983 smelt outmigration estimated at Prosser and the 1984 return of jacks (3 year old fish) the 1985 return of four year old adults, and the 1986 return of five year old fish to the Yakima River. It was estimated that 6,012 wild three, four, and five year old fish returned from an estimated smolt outmigration of 135,548 fish in 1983. This gives an estimated survival from smolt to adult of 4.4%. The smolt to adult survival for the 1984 smolt outmigration was 5.3% with 423 jacks returning in 1985, 5,163 four year old adults returning in 1986, and 983 five year old fish returning in 1987 fran an estimated 123,732 smolts in 1984. Spring chinook adults from fourteen different hatchery release groups were recovered in 1987. A total of 211 coded wire tags were recovered and these were expanded to an estimated 253 returning hatchery fish in 1987. Nine of these fish were jacks.
Download or read book Yakima River Spring Chinook Enhancement Study 1984 Annual Report written by and published by . This book was released on 1985 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study develops data to present management alternatives for Yakima River spring chinook. The first objective is to determine the distribution, abundance and survival of wild Yakima River spring chinook. Naturally produced populations will be studied to determine if these runs can be sustained in the face of present harvest and environmental conditions. This information will be gathered through spawning ground surveys, counting of adults at Prosser and Roza fish ladders, and through monitoring the tribal dipnet fishery. Concurrent studies will examine potential habitat limitations within the basin. Presently, survival to emergence studies, in conjunction with substrate quality analysis is being undertaken. Water temperature is monitored throughout the basin, and seining takes place monthly to evaluate distribution and abundance. The outcome of this phase of the investigation is to determine an effective manner for introducing hatchery stocks that minimize the impacts on the wild population. The second objective of this study is to determine relative effectiveness of different methods of hatchery supplementation.
Download or read book Yakima Fisheries Project written by and published by . This book was released on 1995 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: BPA proposes to fund several fishery-related activities in the Yakima River Basin. The Yakima Fisheries Project (YFP), included in the Northwest Power Planning Council's fish and wildlife program, would be jointly managed by the State of Washington and the Yakima Indian Nation. Fisheries resources in the Yakima River are severely reduced from historical levels and there is a significant potential for enhancement of these resources. BPA's proposed action is to fund (1) information gathering on the implementation of supplementation techniques and on feasibility of reintroducing coho salmon in an environment where native populations have become extinct; (2) research activities based on continuous assessment, feedback and improvement of research design and activities ({open_quotes}adaptive management{close_quotes}); and (3) the construction, operation, and maintenance of facilities for supplementing populations of upper Yakima spring chinook salmon. The project has been considerably revised from the original proposal described in the first draft EIS. Examined in addition to No Action (which would leave present anadromous fisheries resources unchanged in the, Basin) are two alternatives for action: (1) supplementation of depressed natural populations of upper Yakima spring chinook and (2) that same supplementation plus a study to determine the feasibility of re-establishing (via stock imported from another basin) naturally spawning population and a significant fall fishery for coho in the Yakima Basin. Alternative 2 has been identified as the preferred action. Major issues examined in the Revised Draft EIS include potential impacts of the project on genetic and ecological resources of existing fish populations, on water quality and quantity, on threatened and endangered species listed under the Endangered Species Act, and on the recreational fishery.
Download or read book Yakima River Basin Fisheries Project written by and published by . This book was released on 1996 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yakima River Spring Chinook Enhancement Study 1986 Annual Report written by and published by . This book was released on 1986 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of eight spring chinook redds were successfully capped in 1986. The mean survival to emergence was 56.7% and ranged from 21.9 to 90.0%. The spring outmigration at Wapatox was estimated to be 6671 smolts. The 1986 outmigration of wild spring chinook from the Yakima Basin was estimated to be 169,076 smolts at Prosser. The survival from egg to smolt was 4.6%, which gives a mean egg to smolt survival over four years of 5.1%. In 1986 a total of 8557 adult and 349 jack spring chinook salmon returning to the Yakima River were counted at Prosser fish ladder. An additional 530 fish were estimated to have been caught in the Yakima River subsistence dipnet fishery below Horn Rapids and Prosser Dams. This was the largest return of spring chinook salmon to the Yakima River in 29 years. The smolt to adult (S/sub sa/) survival was estimated to be 6102 wild three, four, and five year old fish returned from an estimated smolt outmigration of 135,548 fish in 1983. This gives an estimated survival from smolt to adult of 4.4%.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992-04 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yakima River Spring Chinook Enhancement Study written by D. E. Fast and published by . This book was released on 1988 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yakima Fisheries Project written by and published by . This book was released on 1996 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: BPA proposes to fund several fishery-related activities in the Yakima River Basin. These activities, known as the Yakima Fisheries Project (YFP), would be jointly managed by the State of Washington and the Yakima Indian Nation. The YFP is included in the Northwest Power Planning Councils̀ (Councils̀) fish and wildlife program. The Council selected the Yakima River system for attention because fisheries resources are severely reduced from historical levels and because there is a significant potential for enhancement of these resources. BPAs̀ proposed action is to fund (1) information gathering on the implementation of supplementation techniques and on feasibility of reintroducing coho salmon in an environment where native populations have become extinct; (2) research activities based on continuous assessment, feedback and improvement of research design and activities ({open_quotes}adaptive management{close_quotes}); and (3) die construction, operation, and maintenance of facilities for supplementing populations of upper Yakima spring chinook salmon. Examined in addition to No Action are two alternatives for action: (1) supplementation of depressed natural populations of upper Yakima spring chinook and (2) that same supplementation plus a study to determine the feasibility of reestablishing naturally spawning population and a significant fall fishery for coho in the Yakima Basin. Alternative 2 is the preferred action. A central hatchery would be built for either alternative, as well as three sites with six raceways each for acclimation and release of spring chinook smolts. Major issues examined in the Revised Draft EIS include potential impacts of the project on genetic and ecological resources of existing fish populations, on water quality and quantity, on threatened and endangered species listed under the Endangered Species Act, and on the recreational fishery.
Download or read book Final Environmental Impact Statement Land and Resource Management Plan written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 1990 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
