Monitoring of Downstream Salmon and Steelhead Trout at Federal Hydroelectric Facilities, 1985 Annual Report.
Juvenile salmonids were monitored on their seaward migration at three key sites on the Snake-Columbia River system by the National Marine Fisheries Service (NMFS). This was a part of the total monitoring effort in the Water Budget Center's (WBC) smolt monitoring program on Columbia Basin salmonid stocks. In addition to the three key sites, the NMFS also initiated a sampling effort at bower Monumental Dam. Funding was provided by the Bonneville Power Administration (BPA). The major sampling sites were at Lower Granite, McNary, and John Day Dams: sampling at these sites provided data primarily for evaluation of smolt survival, travel time, and migrational timing as required by the WBC. At bower Monumental Dam catch data was to provide a general indication of smolt passage and comparison with the hydroacoustics passage index as determined by Bio-Sonics of Seattle, WA. To achieve these goals it was necessary to monitor and index salmonid smolt passage at the three major sites. This involved: (1) the systematic sampling of the smolt migration from 27 March to 23 July at bower Granite Dam, 29 March to 26 September at McNary Dam, 28 March to 1 April, 20-22 April, and 27 April to 29 October at John Day Dam; (2) recovering and recording brands; (3) providing the WBC with a daily index of smolt passage at bower Granite and McNary Dams and daily sample numbers at John Day Dam; and (4) providing the WBC with daily summaries of brand recapture data. Daily catch and brand recapture data from Lower Monumental Dam was reported to the WBC as required during the sampling season, 23 May through 9 July.
- Research Organization:
- National Oceanic and Atmospheric Administration (NOAA)
- Sponsoring Organization:
- United States. Bonneville Power Administration.
- DOE Contract Number:
- 1985BP20733
- OSTI ID:
- 850490
- Report Number(s):
- DOE/BP-20733-1; R&D Project: 198401400; TRN: US200518%%262
- Country of Publication:
- United States
- Language:
- English
Similar Records
Smolt Monitoring Program, Volume II, Migrational Characteristics of Columbia Basin Salmon and Steelhead Trout, 1986 Annual Report.
Survival Estimates for the Passage of Spring-Migrating Juvenile Salmonids through Snake and Columbia River Dams and Reservoirs, 2004-2005 Annual Report.