EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Review of Survival Flow Temperature and Migration Data for Hatchery raised Subyearling Fall Chinook Salmon Above Lower Granite Dam

Download or read book Review of Survival Flow Temperature and Migration Data for Hatchery raised Subyearling Fall Chinook Salmon Above Lower Granite Dam written by Karl J. Dreher and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Survival of Subyearling Fall Chinook Salmon in the Free flowing Snake River and Lower Snake River Reservoirs in 2003 and from McNary Dam Tailrace to John Day Dam Tailrace in the Columbia River from 1999 to 2002 1999 2003 Technical Report

Download or read book Survival of Subyearling Fall Chinook Salmon in the Free flowing Snake River and Lower Snake River Reservoirs in 2003 and from McNary Dam Tailrace to John Day Dam Tailrace in the Columbia River from 1999 to 2002 1999 2003 Technical Report written by Steven G. Smith and published by . This book was released on 2004 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report results from an ongoing study of survival and travel time of subyearling fall Chinook salmon in the Snake River during 2003 and in the Columbia River during 1999-2002. Earlier years of the study included serial releases of PIT-tagged hatchery subyearling Chinook salmon upstream from Lower Granite Dam, but these were discontinued in 2003. Instead, we estimated survival from a large number of PIT-tagged fish released upstream from Lower Granite Dam to evaluate transportation from Snake River Dams. During late May and early June 2003, 68,572 hatchery-reared subyearling fall Chinook salmon were PIT tagged at Lyons Ferry Hatchery, trucked upstream, acclimated, and released at Couse Creek and Pittsburg Landing in the free-flowing Snake River. We estimated survival for these fish from release to Lower Granite Dam tailrace. In comparison to wild subyearling fall Chinook salmon PIT tagged and released in the free-flowing Snake River, the hatchery fish we released traveled faster and had higher survival to Lower Granite Dam, likely because of their larger size at release. For fish left in the river to migrate we estimated survival from Lower Granite Dam tailrace to McNary Dam tailrace. Each year, a small proportion of fish released are not detected until the following spring. However, the number of fish released in 2003 that overwintered in the river and were detected as they migrated seaward as yearlings in 2004 was small (

Book Migratory Behavior and Survival of Juvenile Salmonids in the Lower Columbia River and Estuary in 2009

Download or read book Migratory Behavior and Survival of Juvenile Salmonids in the Lower Columbia River and Estuary in 2009 written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported herein was funded as part of the Anadromous Fish Evaluation Program, which is managed by the U.S. Army Corps of Engineers (USACE). The Anadromous Fish Evaluation Program study code is EST P 02 01: A Study of Salmonid Survival and Behavior through the Columbia River Estuary Using Acoustic Tags. The study was conducted by the Pacific Northwest National Laboratory (PNNL) and National Oceanic and Atmospheric Administration (NOAA) Fisheries for the USACE Portland District. Estimated survival of acoustic-tagged juvenile Chinook salmon and steelhead through the lower Columbia River and estuary in 2009 was lowest in the final 50 km of the estuary. Probability of survival was relatively high (>0.90) for yearling and subyearling Chinook salmon from the Bonneville Dam forebay (rkm 236) to Three-tree Point (rkm 49.6). Survival of juvenile Chinook salmon declined sharply through the lower 50 km of the estuary. Acoustic-tagged steelhead smolts did not survive as well as juvenile Chinook salmon between Bonneville Dam and the mouth of the Columbia River. Steelhead survival began to decline farther upstream (at rkm 86) relative to that of the Chinook salmon stocks. Subyearling Chinook salmon survival decreased markedly as the season progressed. It remains to be determined whether later migrating subyearling Chinook salmon are suffering increasing mortality as the season progresses or whether some portion of the apparent loss is due to fish extending their freshwater residence. This study provided the first glimpse into what promises to be a very informative way to learn more about how juvenile salmonid passage experiences through the FCRPS may influence their subsequent survival after passing Bonneville Dam. New information regarding the influence of migration pathway through the lower 50 km of the Columbia River estuary on probability of survival of juvenile salmonids, combined with increased understanding regarding the foraging distances and time periods of avian predators should prove useful in developing or assessing management actions to reduce losses of juvenile salmonid smolts that attempt to pass through the estuary on their seaward migration.

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

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 Monitoring the Migrations of Wild Snake River Spring Summer Chinook Salmon Juveniles 2003 2004 Annual Report

Download or read book Monitoring the Migrations of Wild Snake River Spring Summer Chinook Salmon Juveniles 2003 2004 Annual Report written by Stephen Achord and published by . This book was released on 2005 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides information on PIT-tagging of wild Chinook salmon parr in Idaho in 2003 and the subsequent monitoring of these fish and similarly tagged fish from Oregon. We report estimated parr-to-smolt survival and arrival timing of these fish at Lower Granite Dam, as well as interrogation data collected at several other sites throughout the Snake and Columbia River system. This research continues studies that began under Bonneville Power Administration (BPA) funding in 1991. Results from previous study years were reported by Achord et al. (1994; 1995a, b; 1996a; 1997; 1998; 2000; 2001a, b; 2002, 2003, 2004). Goals of this ongoing study are: (1) Characterize the migration timing and estimate parr-to-smolt survival of different stocks of wild Snake River spring/summer Chinook salmon smolts at Lower Granite Dam. (2) Determine whether consistent migration patterns are apparent. (3) Determine what environmental factors influence migration patterns. (4) Characterize the migration behavior and estimate survival of different wild juvenile fish stocks as they emigrate from their natal rearing areas. This study provides critical information for recovery planning, and ultimately recovery for these ESA-listed wild fish stocks. In 2003-2004, we also continued to measure water temperature, dissolved oxygen, specific conductance, turbidity, water depth, and pH at five monitoring stations in the Salmon River Basin, Idaho for the Baseline Environmental Monitoring Program. These data, along with parr/smolt migration, survival, and timing data, will help to discern patterns or characteristic relationships between fish movement/survival and environmental factors.

Book Fall Chinook Salmon Survival and Supplementation Studies in the Snake River and Lower Snake River Reservoirs 1995 Annual Report

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 Effects of Flow on the Migratory Behavior and Survival of Juvenile Fall and Summer Chinook Salmon in John Day Reservior 1982 Annual Report of Research

Download or read book Effects of Flow on the Migratory Behavior and Survival of Juvenile Fall and Summer Chinook Salmon in John Day Reservior 1982 Annual Report of Research written by and published by . This book was released on 1983 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Marine Fisheries Service in cooperation with the Bonneville Power Administration is conducting a 6-year study of the effects of instream flows on the passage time, survival, and migrational behavior of juvenile fall and summer (O-age) chinook salmon in John Day Reservoir. In 1982, the second year of the study, research activities concentrated on refining distribution and behavior data in John Day Reservoir and on releasing and recapturing marked fish needed to define flow/travel time relationships. Twenty-two groups (61,887 fish) of marked O-age chinook salmon were wire-tagged, branded, and released into the tailrace at McNary Dam, and forty-four groups (13,128 fish) were branded and released into the reservoir at various other sites. Sampling at the John Day Dam airlift facility captured 54,647 subyearling chinook salmon including 482 marked recoveries. Additional marks (279) were recovered from purse seine samples taken at various sites throughout the reservoir. The average passage time to John Day Dam for marked O-age chinook salmon released in the McNary tailrace was 23 days. Weekend flow reductions at McNary Dam did not affect passage time of subyearling chinook salmon in John Day Reservoir. There was no statistical evidence to indicate that instream flows affected either the rate of movement or residence time of O-age chinook salmon in John Day Reservoir.

Book A Literature Review Relevant to Juvenile Fall Chinook Salmon Habitat Use Migration Behavior and Survival in the Lower Snake River

Download or read book A Literature Review Relevant to Juvenile Fall Chinook Salmon Habitat Use Migration Behavior and Survival in the Lower Snake River written by Matthew L. Keefer and published by . This book was released on 2008 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Relative Survival of Subyearling Chinook Salmon After Passage Through the Bypass System at the First Powerhouse Or a Turbine at the First Or Second Powerhouse and Through the Tailrace Basins at Bonneville Dam 1992

Download or read book Relative Survival of Subyearling Chinook Salmon After Passage Through the Bypass System at the First Powerhouse Or a Turbine at the First Or Second Powerhouse and Through the Tailrace Basins at Bonneville Dam 1992 written by and published by . This book was released on 1994 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: