Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Post Release Attributes And Survival Of Hatchery And Natural Fall Chinook Salmon In The Snake River 2000 2001 Annual Report
Download Post Release Attributes And Survival Of Hatchery And Natural Fall Chinook Salmon In The Snake River 2000 2001 Annual Report full books in PDF, epub, and Kindle. Read online Post Release Attributes And Survival Of Hatchery And Natural Fall Chinook Salmon In The Snake River 2000 2001 Annual Report ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Post-release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River by : Kenneth F. Tiffan
Download or read book Post-release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River written by Kenneth F. Tiffan and published by . This book was released on 2003 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Post-Release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River ; 2000-2001 Annual Report by :
Download or read book Post-Release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River ; 2000-2001 Annual Report written by and published by . This book was released on 2003 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes results of research activities conducted in 2000, 2001, and years previous to aid in the management and recovery of fall chinook salmon in the Columbia River basin. The report is divided into sections and self-standing chapters. For detailed summaries, we refer the reader to the abstracts given on the second page of each chapter. The Annual Reporting section includes information provided to fishery managers in-season and post-season, and it contains a detailed summary of life history and survival statistics on wild Snake River fall chinook salmon juveniles for the years 1992-2001. The Journal Manuscripts section includes complete copies of papers submitted or published during 2000 and 2001 that were not included in previous annual reports. Publication is a high priority for this project because it provides our results to a wide audience, it ensures that our work meets high scientific standards, and we believe that it is a necessary obligation of a research project. The Bibliography of Published Journal Articles section provides citations for peer-reviewed papers co-authored by personnel of project 199102900 that were published from 1998 to 2001.
Book Synopsis Post-release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River by : Kenneth F. Tiffan
Download or read book Post-release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River written by Kenneth F. Tiffan and published by . This book was released on 2001 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Post-Release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River by :
Download or read book Post-Release Attributes and Survival of Hatchery and Natural Fall Chinook Salmon in the Snake River written by and published by . This book was released on 2001 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes results of research activities conducted in 1999 and years previous. In an effort to provide this information to a wider audience, the individual chapters in this report have been submitted as manuscripts to peer-reviewed journals. These chapters communicate significant findings that will aid in the management and recovery of fall chinook salmon in the Columbia River Basin. Abundance and timing of seaward migration of Snake River fall chinook salmon was indexed using passage data collected at Lower Granite Dam for five years. We used genetic analyses to determine the lineage of fish recaptured at Lower Granite Dam that had been previously PIT tagged. We then used discriminant analysis to determine run membership of PIT-tagged smolts that were not recaptured to enable us to calculate annual run composition and to compared early life history attributes of wild subyearling fall and spring chinook salmon. Because spring chinook salmon made up from 15.1 to 44.4% of the tagged subyearling smolts that were detected passing Lower Granite Dam, subyearling passage data at Lower Granite Dam can only be used to index fall chinook salmon smolt abundance and passage timing if genetic samples are taken to identify run membership of smolts. Otherwise, fall chinook salmon smolt abundance would be overestimated and timing of fall chinook salmon smolt passage would appear to be earlier and more protracted than is the case.
Book Synopsis Lower Snake River Navigation Maintenance by :
Download or read book Lower Snake River Navigation Maintenance written by and published by . This book was released on 2005 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Survival of Hatchery Subyearling Fall Chinook Salmon in the Free-Flowing Snake River and Lower Snake River Reservoirs, 1998-2001 Summary Report by :
Download or read book Survival of Hatchery Subyearling Fall Chinook Salmon in the Free-Flowing Snake River and Lower Snake River Reservoirs, 1998-2001 Summary Report written by and published by . This book was released on 2002 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report results from four years (1998-2001) of an ongoing study of survival and travel time of subyearling fall chinook salmon in the Snake River. We report analyses of associations among river conditions and survival and travel time estimates, which include data from 1995 through 1997. At weekly intervals from early June to early July each year (mid-May to late June in 2001), hatchery-reared subyearling fall chinook salmon were PIT tagged at Lyons Ferry Hatchery, trucked upstream, acclimated, and released above Lower Granite Dam at Pittsburgh Landing and Billy Creek on the Snake River and at Big Canyon Creek on the Clearwater River. Each year, a small proportion of fish released were not detected until the following spring. However, the number that overwintered in the river and migrated seaward as yearlings the following spring was small and had minimal effect on survival estimates. Concurrent with our studies, a number of subyearling fall chinook salmon that reared naturally in the Snake River were caught by beach seine, PIT tagged, and released. We compared a number of characteristics of hatchery and wild fish. Hatchery and wild fish were similar in 2001, and from 1995 through 1997. Results for 1998 through 2000 showed some relatively large differences between hatchery and wild fish. However, recent information suggests that a considerable proportion of wild subyearling chinook salmon migrating in a given year may actually be stream-type (spring/summer), rather than ocean-type (fall) fish, which may account for some of the differences we have observed.
Book Synopsis Fall Chinook Salmon Survival and Supplementation Studies in the Snake River and Lower Snake River Reservoirs, 1995. Annual Report, January 1, 1995--December 31, 1995 by :
Download or read book Fall Chinook Salmon Survival and Supplementation Studies in the Snake River and Lower Snake River Reservoirs, 1995. Annual Report, January 1, 1995--December 31, 1995 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Snake River fall chinook salmon (Oncorhynchus tshawytscha) are listed as threatened under the Endangered Species Act. At present, limited data exist on the migrational characteristics of Snake River subyearling fall chinook salmon, particularly concerning the proportion of migrants that survive passage through the Snake River dams and reservoirs, the effects of flows and temperatures on survival, and the percentage of subyearlings that are guided away from turbines into collection facilities and transported. As a result, operational strategies to maximize survival have been largely based on data from studies of subyearling chinook salmon that pass through lower Columbia River dams. In 1994, the National Marine Fisheries Service and the U.S. Fish and Wildlife Service began a cooperative study to investigate migrational characteristics of subyearling fall chinook salmon in the Snake River. The primary study objectives were to (1) determine the feasibility of estimating detection and pass age survival probabilities of natural and hatchery subyearling fall chinook salmon released in the Snake River (2) investigate relationships. between detection and passage survival probabilities and travel time of subyearling fall chinook salmon and environmental influences such as flow volume and water temperature (3) monitor and evaluate dispersal of hatchery subyearling chinook salmon into nearshore rearing areas used by natural fish and (4) monitor and evaluate travel time to Lower Granite Dam, growth from release in the Snake River to recapture at Lower Granite Dam, ATPase levels of fish recaptured at Lower Granite Dam, and survival from release in the free-flowing Snake River to the tailrace of Lower Granite Dam.
Book Synopsis Post-Release Performance of Natural and Hatchery Subyearling Fall Chinook Salmon in the Snake and Clearwater Rivers by :
Download or read book Post-Release Performance of Natural and Hatchery Subyearling Fall Chinook Salmon in the Snake and Clearwater Rivers written by and published by . This book was released on 2008 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2006, we continued a multi-year study to compare smolt-to-adult return rate (SAR) ratios between two groups of Snake River Basin fall Chinook salmon Oncorhynchus tshawytscha that reached the sea through a combination of either (1) transportation and inriver migration or (2) bypass and inriver migration. We captured natural subyearlings rearing along the Snake and Clearwater rivers and implanted them with passive integrated transponder (PIT) tags, but knew in advance that sample sizes of natural fish would not be large enough for precise comparisons of SAR ratios. To increase sample sizes, we also cultured Lyons Ferry Hatchery subyearlings under a surrogate rearing strategy, implanted them with PIT tags, and released them into the Snake and Clearwater rivers to migrate seaward. The surrogate rearing strategy involved slowing growth at Dworshak National Fish Hatchery to match natural subyearlings in size at release as closely as possible, while insuring that all of the surrogate subyearlings were large enough for tagging (i.e., 60-mm fork length). Surrogate subyearlings were released from late May to early July 2006 to coincide with the historical period of peak beach seine catch of natural parr in the Snake and Clearwater rivers. We also PIT tagged a large representative sample of hatchery subyearlings reared under a production rearing strategy and released them into the Snake and Clearwater rivers in 2006 as part of new research on dam passage experiences (i.e., transported from a dam, dam passage via bypass, dam passage via turbine intakes or spillways). The production rearing strategy involved accelerating growth at Lyons Ferry Hatchery, sometimes followed by a few weeks of acclimation at sites along the Snake and Clearwater rivers before release from May to June. Releasing production subyearlings has been suggested as a possible alternative for making inferences on the natural population if surrogate fish were not available. Smoltto-adult return rates are not reported here, but will be presented in future reports written after workshops and input by federal, state, and tribal researchers. In this report, we compared the postrelease performance of natural subyearlings to the postrelease performance of surrogate and production subyearlings. We made this comparison to help the fisheries community determine which of the two hatchery rearing strategies produced fish that were more similar to natural subyearlings. We compared the following attributes of postrelease performance (1) detection dates at dams, (2) detections during the implementation of summer spill, (3) travel times, (4) migrant sizes, and (5) the joint probability of migration and survival. Overall, we found that postrelease performance was more similar between natural and surrogate subyearlings than between natural and production subyearlings. Further, the similarity between natural and surrogate subyearlings was greater in 2006 than in 2005, partly as the result of changes in incubation and early rearing practices we recommended based on 2005 results.
Book Synopsis Emigration of Natural and Hatchery Chinook Salmon and Steelhead Smolts from the Imnaha River, Oregon, October 20, 1999 to June 15, 2000 by :
Download or read book Emigration of Natural and Hatchery Chinook Salmon and Steelhead Smolts from the Imnaha River, Oregon, October 20, 1999 to June 15, 2000 written by and published by . This book was released on 2002 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report details the smolt performance of natural and hatchery chinook salmon and steelhead from the Imnaha River to the Snake River and Columbia River dams during migration year 2000. Flow conditions in the Imnaha River and Snake River were appreciably lower during May and June in 2000, compared to historic levels at gauging stations, but flow conditions in the Imnaha and Snake River were above average during April. Overall, water conditions for the entire Columbia River were characterized by the Fish Passage Center as below normal levels. Spill occurred continuously at Lower Granite Dam (LGR), Little Goose Dam (LGO), and Lower Monumental Dam (LMO) from April 5, April 10, and April 4, respectively, to June 20, and encompassed the periods of migration of Imnaha River juvenile chinook salmon and steelhead, with a few exceptions. Outflow in the tailraces of LGR, LGO, and LMO decreased in May and June while temperatures increased. Chinook salmon and steelhead were captured using rotary screw traps at river kilometer (rkm) 74 and 7 during the fall from October 20 to November 24, 1999, and during the spring period from February 26 to June 15, 2000, at rkm 7. Spring trapping information was reported weekly to the Fish Passage Center's Smolt Monitoring Program. A portion of these fish were tagged weekly with passive integrated transponder (PIT) tags and were detected migrating past interrogation sites at Snake River and Columbia River dams. Survival of PIT tagged fish was estimated with the Survival Using Proportional Hazards model (SURPH model). Estimated survival of fall tagged natural chinook (with " 95% confidence intervals in parenthesis) from the upper Imnaha (rkm 74) to LGR was 29.6% (" 2.8). Natural chinook salmon tagged in the fall in the lower Imnaha River at rkm 7, which over wintered in the Snake River, had an estimated survival of 36.8% (" 2.9%) to LGR. Spring tagged natural chinook salmon from the lower site had an estimated survival of 84.8% (" 2.6%) to LGR. The season wide survival of spring tagged natural chinook salmon smolts from release in the Imnaha River to McNary Dam (MCN) was 67.9% (" 6.3%). Post release survival of hatchery chinook salmon smolts, from release at the Imnaha River acclimation facility to the lower Imnaha River trap, was estimated at 94.7% (" 4.7%). Hatchery chinook salmon, PIT tagged and released at the lower Imnaha River trap, had an estimated survival of 75.0% (" 4.2%) to LGR. Estimated survival of hatchery chinook salmon smolts from the Imnaha River to McNary Dam (MCN) was 54.1% (" 9.7%). Natural steelhead smolts had an estimated survival of 84.4% (" 2.7%) to LGR and a survival estimate of 49.9% ("12.2%) from the lower Imnaha River trap to MCN. The estimated survival of hatchery steelhead smolts to LGR was 85.8 (" 2.4) and the survival from release to MCN was 40.2% ("12.5%).
Book Synopsis Lyons Ferry Hatchery Evaluation by :
Download or read book Lyons Ferry Hatchery Evaluation written by and published by . This book was released on 2006 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Natural Production Monitoring and Evaluation ; Idaho Department of Fish and Game, 2000-2001 Annual Report by :
Download or read book Natural Production Monitoring and Evaluation ; Idaho Department of Fish and Game, 2000-2001 Annual Report written by and published by . This book was released on 2001 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report covers efforts to monitor age composition of wild adult spring/summer chinook salmon returning to the Snake River Basin. Accurately determining the ocean age proportions of wild adult spring/summer chinook salmon is important information for monitoring the status and trends of these species. During this report period, project personnel selected the preferred structure for aging, set up a database to track all samples collected, developed procedures and ordered equipment for structure preparation and reading, and aged the adults that were sampled in 1999. Chinook salmon carcasses were sampled from representative spawning areas throughout the Snake River Basin. Ocean age proportions were determined for each 5 centimeter fork length group for wild adult spring/summer chinook salmon returning to the Snake River. These ocean age proportions were applied to the number and estimated length frequency distribution of wild chinook salmon adults passing Lower Granite Dam to estimate the number of adult returns for each ocean age group.
Book Synopsis Fall Chinook Salmon Survival and Supplementation Studies in the Snake River and Lower Snake River Reservoirs, 1995 Annual Report by :
Download or read book Fall Chinook Salmon Survival and Supplementation Studies in the Snake River and Lower Snake River Reservoirs, 1995 Annual Report written by and published by . This book was released on 1997 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1994, the National Marine Fisheries Service and the US Fish and Wildlife Service began a cooperative study to investigate migrational characteristics of subyearling fall chinook salmon in the Snake River. The primary study objectives were to (1) determine the feasibility of estimating detection and passage survival probabilities of natural and hatchery subyearling fall chinook salmon released in the Snake River (Chapter 1), (2) investigate relationships between detection and passage survival probabilities and travel time of subyearling fall chinook salmon and environmental influences such as flow volume and water temperature (Chapter 1), (3) monitor and evaluate dispersal of hatchery subyearling chinook salmon into nearshore rearing areas used by natural fish (Chapter 2), and (4) monitor and evaluate travel time to Lower Granite Dam, growth from release in the Snake River to recapture at Lower Granite Dam, ATPase levels of fish recaptured at Lower Granite Dam, and survival from release in the free-flowing Snake River to the tailrace of Lower Granite Dam (Chapter 2).
Book Synopsis Fall Chinook Salmon Survival and Supplementation Studies in the Snake River Reservoirs, 1996 Annual Report by :
Download or read book Fall Chinook Salmon Survival and Supplementation Studies in the Snake River Reservoirs, 1996 Annual Report written by and published by . This book was released on 1998 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1996, the National Marine Fisheries Service, the Nez Perce Tribe, and the U.S. Fish and Wildlife Service completed the second year of cooperative research to investigate migrational characteristics of subyearling fall chinook salmon in the Snake River Basin. In spring and early summer, we captured natural subyearling fall chinook salmon by beach seine, PIT tagged them, and released them in two reaches of the Snake River. Also, subyearling fall chinook salmon reared at Lyons Ferry Hatchery were PIT tagged at the hatchery, transported, and released weekly at Pittsburg Landing on the Snake River and Big Canyon Creek on the Clearwater River to collect data on survival detection probabilities, and travel time.
Book Synopsis Tucannon River Spring Chinook Salmon Hatchery Evaluation Program ... Annual Report by :
Download or read book Tucannon River Spring Chinook Salmon Hatchery Evaluation Program ... Annual Report written by and published by . This book was released on 2006 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spawning Distribution of Fall Chinook Salmon in the Snake River, Annual Report 2001-2002 by :
Download or read book Spawning Distribution of Fall Chinook Salmon in the Snake River, Annual Report 2001-2002 written by and published by . This book was released on 2003 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Bonneville Power Administration. Division of Fish and Wildlife Publisher : ISBN 13 : Total Pages :48 pages Book Rating :4.:/5 (54 download)
Book Synopsis Spawning Distribution of Fall Chinook Salmon in the Snake River by : United States. Bonneville Power Administration. Division of Fish and Wildlife
Download or read book Spawning Distribution of Fall Chinook Salmon in the Snake River written by United States. Bonneville Power Administration. Division of Fish and Wildlife and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Bonneville Power Administration. Division of Fish and Wildlife Publisher : ISBN 13 : Total Pages :56 pages Book Rating :4.:/5 (476 download)
Book Synopsis Spawning Distribution of Fall Chinook Salmon in the Snake River by : United States. Bonneville Power Administration. Division of Fish and Wildlife
Download or read book Spawning Distribution of Fall Chinook Salmon in the Snake River written by United States. Bonneville Power Administration. Division of Fish and Wildlife and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
