Feasibility of Split-beam Hydroacoustic Gear to Provide Estimates of Coho Salmon Abundance in the Kenai River
Feasibility of Split-beam Hydroacoustic Gear to Provide Estimates of Coho Salmon Abundance in the Kenai River

Author: Kyle D. Vaught

Publisher:

Published: 1993

Total Pages: 22

ISBN-13:

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Reports on the feasibility of using split-beam sonar to facilitate data collection for estimating riverine abundance estimates of coho salmon (Oncorhynchus kisutch) in the Kenai River. Drift gill nets and fish wheels were also used to collect length frequency data; diurnal patterns in fish passage were also documented.

Stock Assessment of Buskin River Coho Salmon, 2018-2019
Stock Assessment of Buskin River Coho Salmon, 2018-2019

Author: Kelly M. Krueger

Publisher:

Published: 2023

Total Pages: 0

ISBN-13:

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The Alaska Department of Fish and Game, Division of Sport Fish has used a weir to assess the annual runs of coho salmon (Oncorhynchus kisutch) to the Buskin River on Kodiak Island since 1985. This report presents weir counts, harvest, and age-composition data collected for 2018 and 2019. In 2018, the inriver run estimate was 4,523 fish; the estimated sport and subsistence harvests were 1,793 fish and 1,171 fish, respectively, and the commercial harvest was zero. The estimated escapement was 4,164 coho salmon. Age-2.1 fish composed an estimated 78.9% of the inriver run and the male-to-female ratio was 2.4:1. In 2019, the inriver run estimate was 5,537 fish; the estimated sport and subsistence harvests were 934 fish and 340 fish, respectively, and the commercial harvest was zero. The estimated escapement was 5,350 coho salmon. Age-2.1 fish composed 52.3% of the inriver run and the male-to-female ratio was 1.1:1.