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

Details

• 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 Age Determination Fish Populations Length Measurement Pacific Salmon Fisheries Sex Determination

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• 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:sha-512:3ddb0fddda65cfc1190a9708ce2108de4512dbc2369e3296b9d740b50cad5f47a8be97c331a9d645e631fb0752690b2bf12510fab5d736fd937471b5506c21fd
• Download URL:
  https://repository.library.noaa.gov/view/noaa/22033/noaa_22033_DS1.pdf
• File Type:
  [PDF - 2.51 MB ]