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Title: Cle Elum Lake Sockeye Salmon Restoration Feasibility Study, 1986-1988 Progress Report.

In 1986, a multi-year project to evaluate the biological feasibility of reestablishing anadromous sockeye salmon (Oncorhynchus nerka) runs to Cle Elum Lake in the Yakima River Basin was established between the Bonneville Power Administration (BPA) and the National Marine Fisheries Service (NMFS). This program involves the capture, spawning, and rearing of disease-free donor stock in 1987 and 1988 and assessment of juvenile outmigration and survival from Cle Elum Lake in 1989 and 1990. Work in 1987--1988 involved collection of adult sockeye salmon from the Lake Wenatchee run and incubation and rearing of progeny as donor stock. In July 1987, 263 adults were captured at the Dryden fishway on the Wenatchee River and transferred to net-pens in Lake Wenatchee. Adults were held approximately 90 days and spawned, and the eggs were transferred to a quarantine hatchery. Pre-spawning survival was 95.1%, and all spawners were certified as being free of Infectious Hematopoietic Necrosis (IHN) and other replicating viruses. Egg viability averaged about 40%; however, eyed egg to hatch survival was over 99%. Juveniles are being reared in quarantine, and survival to date is about 92%. The NMFS currently has over 131,000 fry (0.7 g average weight) in culture. Fry have been certifiedmore » twice (at 0.12 g and 0.25 g average weight) as being free of IHN and other replicating viruses. Viral certification will continue throughout rearing. 13 refs., 4 figs., 3 tabs.« less
Authors:
Publication Date:
OSTI Identifier:
6675268
Report Number(s):
DOE/BP-64840-1
R&D Project: 198604500; ON: DE89004363
DOE Contract Number:
1986BP64840
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Research Org:
United States. National Oceanic and Atmospheric Administration.
Sponsoring Org:
United States. Bonneville Power Administration.
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; DAMS; ENVIRONMENTAL EFFECTS; HYDROELECTRIC POWER; POWER GENERATION; INFECTIOUS DISEASES; DETECTION; ADULTS; ANADROMOUS FISHES; BONNEVILLE POWER ADMINISTRATION; JUVENILES; MORTALITY; PROGRESS REPORT; RIVERS; SALMON; WASHINGTON; AGE GROUPS; ANIMALS; AQUATIC ORGANISMS; DISEASES; DOCUMENT TYPES; ELECTRIC POWER; ENERGY SOURCES; FEDERAL REGION X; FISHES; NATIONAL ORGANIZATIONS; NORTH AMERICA; POWER; RENEWABLE ENERGY SOURCES; STREAMS; SURFACE WATERS; US DOE; US ORGANIZATIONS; USA; VERTEBRATES Sockeye salmon - Washington (State) - Cle Elum Lake 130600* -- Hydro Energy-- Environmental Aspects