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Project Information

Title: Use of Hydroacoustic Techniques to Assess the Abundance of Salmon in the Central District of Upper Cook Inlet

Project Year and Number: 1994: 94255

Other Fiscal Years and Numbers for this Project: 1997: 97255-CLO, 1996: 96255-2, 1996: 96255-1, 1996: 96255, 1995: 95255, 1993: 93015, 1992: R053

Principal Investigator (PI): Ken Tarbox, Alaska Department of Fish & Game

Assisting Personnel: Linda Brannian, Randall Davis, Stephen Fried

Research Location: Kenai River

Restoration Category: General Restoration

Injured Resources Addressed: Sockeye Salmon

Abstract: Greatly reduced fishing time in the Upper Cook Inlet (UCI) area due to EVOS caused sockeye salmon spawning escapement levels in the Kenai River system to exceed the desired amount by three times. Data collected by the Natural Resources Damage Assessment following the EVOS indicated greatly reduced survival of juvenile sockeye salmon during the winter-spring rearing period. Overpopulated rearing juvenile sockeye salmon may have exceeded the carrying capacity of salmon rearing lakes, affecting all trophic levels in the lakes. Limiting sockeye salmon fry production by closely regulating the number of spawning adults may be the only way to restore the productivity of these rearing areas. The goal of this project is to restore Kenai River sockeye salmon stocks injured by the EVOS through improved stock assessment capabilities, more accurate regulation of spawning levels, and modification of human use. Kenai River System sockeye salmon will be identified by Genetic Stock Identification (GSI) techniques. Abundance estimates will be made using hydroacoustic techniques developed in 1992 and 1993.


Keywords

Geographic Regions Cook Inlet
Species Fish - Salmon
Fields of Expertise Ecology
Genetics
Technological Methods Acoustics/hydroacoustics

Proposal: PDF Not Available

Funding Recommendations: View

Funding Detail For: 1994

Quarterly Project Tasks For: 1994

Annual Report: 1994: View (1,457 KB)

Final Report: View

Publications from this Project: None Available

More information may be available for this project under other years:

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Project Number Proposal Annual Reports Final Report Data
1997: 97255-CLO Not Available 1997: Not Available
See Project 96255-1 See Project 96255-1
1996: 96255-2 Not Available 1996: Not Available
View See Project 96255-1
1996: 96255-1 Not Available 1996: Not Available
View No datasets
1996: 96255 Not Available 1996: Not Available
See Project 96255-1 See Project 96255-1
1995: 95255 Not Available 1995: View (PDF)
See Project 96255-1 See Project 96255-1
1993: 93015 Not Available 1993: View (PDF)
See Project 94255 See Project 96255-1
1992: R053 Not Available 1992: Not Applicable
See Project 94255 See Project 96255-1