Sonar estimation of summer chum and pink salmon in the Anvik River, Alaska, 2018

Brodersen, Naomi B.

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Sonar estimation of summer chum and pink salmon in the Anvik River, Alaska, 2018

[PDF-2.51 MB]

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Personal Author:

Brodersen, Naomi B.
Corporate Authors:

Alaska. Department of Fish and Game. Division of Sport Fish
NOAA Program & Office:

NMFS (National Marine Fisheries Service)
Description:

Dual-frequency identification sonar (DIDSON) was used to estimate adult summer chum salmon Oncorhynchus keta and pink salmon O. gorbuscha passage in the Anvik River from June 15 to July 26, 2018. Apportionment to species was determined using data collected from tower counts. A total of 305,098 (SE 5,926) summer chum and 1,122,346 (SE 7,588) pink salmon were estimated to have passed the sonar site. A beach seine sample fishery was conducted to collect age, sex, and length information. Both sonar systems functioned well with minimal interruptions to operation. Range of ensonification was considered adequate for most fish that migrated upstream.
Keywords:

[+]

Age Determination Estimates Fish Populations Length Measurement Pacific Salmon Fisheries Salmon Seining Sex Determination Sonar
Series:

Fishery Data Series ; 19-23
Document Type:

Miscellaneous
Funding:

Alaska Sustainable Salmon Fund (AKSSF) project number ; 44357
Place as Subject:

Alaska
Rights Information:

Public Domain
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:202e9d0e2eaf518d0b9432a707df46b218dc18e28bb89debca539e2724a0fb93
Download URL:

https://repository.library.noaa.gov/view/noaa/22033/noaa_22033_DS1.pdf
File Type:

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Sonar estimation of summer chum and pink salmon in the Anvik River, Alaska, 2018

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