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Snake River sockeye salmon captive propagation
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Northwest Fisheries Science Center (NWFSC) Environmental and Fisheries Sciences EFS - Fisheries Enhancement and Conservation
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Information
Project
Redfish sockeye
Title
Snake River sockeye salmon captive propagation
Description
Gene rescue captive broodstock program was established for ESA-listed endangered Snake River sockeye salmon from Redfish Lake, Idaho. The program has consisted of taking most of the remaining gene pool into captive culture at specialized conservation hatcheries at the Manchester Research Station and the Idaho Department of Fish and Game Eagle Hatchery. Fish are being released to native habitats as part of recovery efforts.
Data Sets
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Broodyear data
Data is collected by broodyear on % survival to eye, % survival to spawning, % survival to smolt, % survival to adult, % maturity as two year olds, % maturity as three year olds, and % maturity as four year olds. Age of maturity data is available by sex.
Environmental and Fisheries Sciences - Fisheries Enhancement and Conservation
#CARD_INITIALS#
Fish Culture data
Raw data on rearing density, loading density, water temperature, ration, and feed size may be available. Raw data on administration of therapeutic drugs may be available.
Environmental and Fisheries Sciences - Fisheries Enhancement and Conservation
#CARD_INITIALS#
Growth data
The fork length to the nearest mm and weight to the nearest gram of a subsample of fish is recorded on an approximately quarterly basis.
Environmental and Fisheries Sciences - Fisheries Enhancement and Conservation
#CARD_INITIALS#
Production data
Information on the number of eyed eggs, juveniles, and adults received into the program is maintained and summarized by year. The production of adults spawned, adults transferred to Idaho for release, green eggs taken, and eyed eggs shipped to Idaho and Oregon facilities for restoration activities is also annually summarized.
Environmental and Fisheries Sciences - Fisheries Enhancement and Conservation
#CARD_INITIALS#
Spawning data
The fork length to the nearest mm, weight to the nearest gram, fecundity, and green egg weight to the nearest mg of every female spawned is recorded. The fork length to the nearest mm, weight to the nearest gram, milt weight to the nearest 0.01 gram, milt volume, spermatocrit, and milt motility of every male spawned is recorded. The eyed egg weight and % survival to the eyed stage for every batch of fertilized eggs is recorded. A record is maintained describing which male is crossed with which female.
Environmental and Fisheries Sciences - Fisheries Enhancement and Conservation
Research Themes
Recovery and rebuilding of marine and coastal species
The Pacific Northwest is home to several iconic endangered species, including Pacific salmon and killer whales, and several rockfish species. Mandates such as the Endangered Species Act, MagnusonStevens Act, and the Marine Mammal Protection Act, grant NOAA Fisheries the authority to manage the recovery of depleted species and stocks. The NWFSC contributes to species recovery through research, monitoring and analysis, providing NOAA managers and regional stakeholders the tools and information they need to craft effective regulations and develop sustainable plans for recovery.
Research Foci
Evaluate the effects of artificial propagation on recovery, rebuilding and sustainability of marine and anadromous species
Artificial propagation has the potential to provide benefits both to species recovery and to seafood sustainability. Artificial propagation also poses risks to wild species and ecosystems. In the past, the use of artificial propagation has been an important risk factor for several threatened and endangered species, particularly Pacific salmon. Assessing the effects of artificial propagation is complicated by the fact that programs vary widely in size, rearing practices, and goals. The NWFSC conducts critical research on the influence of artificial propagation on population dynamics, growth rate, ecology of infectious disease, and the evolutionary fitness of wild fish and other marine organisms. Results of this research are needed to support the recovery of fish populations and have been especially valuable in providing critical information for recent, larger scale habitat restoration activities such as the Elwha Dam removal. NWFSC will continue to conduct science that informs the discussion about whether to allow fish to recolonize naturally after barrier removal, or to supplement populations with hatchery fish and on the impacts of aquaculture on fishing pressure and practices, and on the surrounding environment and ecosystem.
Keywords
Snake River
research area
artificial propagation
research technique
salmon
all salmonids
Products
None associated
Taxa
Class Actinopterygii
ray-finned fishes
Family Salmonidae
salmonids
Genus Oncorhynchus
-
Kingdom Animalia
animals
Phylum Chordata
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Species Oncorhynchus nerka
kokanee, red salmon, sockeye salmon
People
Brad Gadberry
Staff
Bryon Kluver
Staff
Deborah Frost
Staff
Desmond Maynard
Principal Investigator
Gladys Yanagida
Staff
James Hackett
Staff
Melissa Lomshek
Staff
Tom Flagg
Co-Lead
William McAuley
Co-Lead