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Title: Annual Stock Assessment - CWT [Coded Wire Tag program] (USFWS), Annual Report 2007.

In 1989 the Bonneville Power Administration (BPA) began funding the evaluation of production groups of juvenile anadromous fish not being coded-wire tagged for other programs. These groups were the 'Missing Production Groups'. Production fish released by the U.S. Fish and Wildlife Service (FWS) without representative coded-wire tags during the 1980s are indicated as blank spaces on the survival graphs in this report. This program is now referred to as 'Annual Stock Assessment - CWT'. The objectives of the 'Annual Stock Assessment' program are to: (1) estimate the total survival of each production group, (2) estimate the contribution of each production group to fisheries, and (3) prepare an annual report for USFWS hatcheries in the Columbia River basin. Coded-wire tag recovery information will be used to evaluate the relative success of individual brood stocks. This information can also be used by salmon harvest managers to develop plans to allow the harvest of excess hatchery fish while protecting threatened, endangered, or other stocks of concern. All fish release information, including marked/unmarked ratios, is reported to the Pacific States Marine Fisheries Commission (PSMFC). Fish recovered in the various fisheries or at the hatcheries are sampled to recover coded-wire tags. This recovery information ismore » also reported to PSMFC. This report has been prepared annually starting with the report labeled 'Annual Report 1994'. Although the current report has the title 'Annual Report 2007', it was written in fall of 2008 using data available from RMIS that same year, and submitted as final in January 2009. The main objective of the report is to evaluate survival of groups which have been tagged under this ongoing project.« less
Authors:
 [1]
  1. U.S. Fish and Wildlife Service, Columbia River Fisheries Program Office
Publication Date:
OSTI Identifier:
964646
Report Number(s):
P112610
R&D Project: 1982-013-03; TRN: US200919%%549
DOE Contract Number:
41043
Resource Type:
Technical Report
Resource Relation:
Related Information: document dated January 2009, Revised February 2009
Research Org:
Bonneville Power Administration (BPA), Portland, OR (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; BONNEVILLE POWER ADMINISTRATION; COLUMBIA RIVER BASIN; EVALUATION; FISHERIES; JUVENILES; PRODUCTION; SALMON; US FWS