Smolt Monitoring at the Head of Granite Reservoir and Lower Granite Dam, 1989 Annual Report.
This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha and steelhead trout O. mykiss smolts during the 1989 spring outmigration at a migrant trap on the Snake River and the Clearwater River. Chinook salmon catch at the Snake River trap was much higher in 1989 than in either of the 1987 or 1988 drought years. The 1989 Snake River trap catch was similar to 1986. Effort was the same during the four years. Steelhead trout catch was greater than in any previous year. Chinook salmon and steelhead trout catch at the Clearwater River trap was similar to 1986, even though effort was greatly reduced in 1989 due to high runoff during most of the season. The 1989 Clearwater River trap catch was lower than in the two drought years (1987 and 1988) and was due to the minimal number of days the trap was operated. Fish tagged with Passive Interrogated Transponder (PIT) tags at the Snake River trap were recovered at the three dams (Lower Granite, Little Goose, and McNary) with PIT tag detection systems. Travel time (days) and migration rate (km/d) through Lower Granite Reservoir for PIT-tagged chinook salmon and steelhead trout, marked at the head of the reservoir, was affected by discharge. Statistical analysis showed that as discharge increased from 40 kcfs to 80 kcfs, chinook salmon travel time decreased three-fold and steelhead trout travel time decreased two-fold. 11 refs., 8 figs., 17 tabs.
- Research Organization:
- Idaho Department of Fish and Game (IDFG)
- Sponsoring Organization:
- US Bonneville Power Administration
- DOE Contract Number:
- 1983BP11631
- OSTI ID:
- 6854896
- Report Number(s):
- DOE/BP-11631-6; ON: DE90014150
- Country of Publication:
- United States
- Language:
- English
Similar Records
Smolt Condition and Timing of Arrival at Lower Granite Reservoir, 1987 Annual Report.
Smolt Condition and Timing of Arrival at Lower Granite Reservoir, 1988 Annual Report.
Related Subjects
54 ENVIRONMENTAL SCIENCES
HYDROELECTRIC POWER
ENVIRONMENTAL IMPACTS
SALMON
MONITORING
TROUT
BONNEVILLE POWER ADMINISTRATION
COLUMBIA RIVER
COMPILED DATA
DAMS
FEDERAL REGION IX
FEDERAL REGION X
FISH PASSAGE FACILITIES
FISHERIES
JUVENILES
MIGRATION
PROGRESS REPORT
STATISTICS
ANADROMOUS FISHES
ANIMALS
AQUATIC ORGANISMS
DATA
DOCUMENT TYPES
ELECTRIC POWER
ENERGY SOURCES
FISHES
INFORMATION
MATHEMATICS
NATIONAL ORGANIZATIONS
NORTH AMERICA
NUMERICAL DATA
POWER
RENEWABLE ENERGY SOURCES
RIVERS
STREAMS
SURFACE WATERS
US DOE
US ORGANIZATIONS
USA
VERTEBRATES
Chinook salmon - Migration - Snake River Watershed (Wyo.-Wash.)
130600* - Hydro Energy- Environmental Aspects
540350 - Environment
Aquatic- Site Resource & Use Studies- (1990-)