Project Information

Title: Coded Wire Tag Recoveries from Pink Salmon in PWS Salmon Fisheries 93067

Project Year and Number: 1993: 93067

Other Fiscal Years and Numbers for this Project: 1998: 98186-CLO, 1997: 97186, 1996: 96186, 1995: 95320-B, 1994: 94320-B, 1992: R060-A, 1992: R060-C

Principal Investigator (PI): Samuel Sharr (Alaska Department of Fish & Game)

Managing Agency: ADFG

Assisting Personnel: Brian Bue, David Evans, Carol Peckham, Dan Sharp

Research Location: Prince William Sound

Restoration Category: General Restoration

Injured Resources Addressed: Pink Salmon

Abstract: Evidence indicates that the 1989 EVOS adversely affected the spawning success and early marine survival of wild pink salmon in the Prince William Sound (PWS). This project is designed to provide estimates of hatchery and wild fish contributions to the pink salmon fisheries in PWS. Using a coded wire tag recovery system, managers will be able to identify times and areas where wild stock exploitation can be minimized while still permitting the harvest of surplus hatchery returns. The foundations for this project were established in feasibility studies conducted from 1986-1988. Following the EVOS, hatchery releases were tagged in 1990, 1991, and 1992. The private non-profit aquaculture associations in PWS continued to tag pink salmon releases since that time. Tags applied to pink hatchery fry must still be recovered or restoration and population monitoring data will be irretrievably lost. This project will institute a tag recovery effort in 1993. Percentages of the commercial catches, hatchery sales harvests, and hatchery brood stocks will be scanned for coded wire tags. Estimates of the contribution of hatchery fish to the PWS pink salmon population will be made to estimate wild stock total returns and survival. Stock specific management strategies for oiled populations and other populations will be developed.


Proposal: Not Available

Reports:
Final Report: View (844 KB)

Publications from this Project: None Available

Datasets:
EVOSTC Data Archive: In RBase; List of collected heads by sample #, species, processor, date sold, tag code, etc. Samples listed by sample number includes; species, number clips, number tags, number sampled, district, processor, date sold, etc. Release data from hatcheries; number released, number tagged, release site and date. Harvest data from fish ticket data system. Each year has a separate Rbase database containing all sampling release and contribution data. Hard copies of reports containing hatchery contribution estimates by statistical week are also available. RBase, hard copies of sample data, summary sheets and in-season checks for tags. Availability: RBase files available on request. In the future data may be available via the internet or another electronic link-up.