Detection of PIT-tagged juvenile salmonids in the Columbia River estuary using pair-trawls, 2005

Details

• Personal Author:
  Ledgerwood, Richard D. ; Way, Luther B. ; Cameron, April S. ; Sandford, Benjamin P. ; Matthews, Gene M.
• Corporate Authors:
  Northwest Fisheries Science Center (U.S.). Fish Ecology Division. ; United States. Army. Corps of Engineers. North Pacific Division. ; United States. Army. Corps of Engineers. Walla Walla District.
• NOAA Program & Office:
  NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)
• Description:
  In 2005, we continued a study to detect juvenile anadromous salmonids Oncorhynchus spp. implanted with passive integrated transponder (PIT) tags using a large surface pair-trawl fitted with a PIT-tag detection antenna. We sampled in the Columbia River upper estuary between river kilometers (rkm) 61 and 83 for 909 h between 20 April and 5 August and detected 14,101 PIT-tagged juvenile salmonids of various species, runs, and rearing types. Not all stocks and rearing types were equally represented in the annual detection totals. For example, ofthe total detections, 18% were wild fish and 79% were hatchery-reared; 64% were Chinook salmon, 32% were steelhead, and the remaining 4% were other salmonid species.
• Keywords:
  Chinook Salmon Fish Tagging Migration Monitoring Steelhead (Fish) Chinook Salmon Fish Tagging
• Format:
  PDF
• Document Type:
  Non-series Report
• Funding:
  Contract no. 56ABNF100030
• Place as Subject:
  Columbia River Estuary (Or. and Wash.)
• License:
  https://creativecommons.org/publicdomain/zero/1.0/
• Rights Information:
  CC0 Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:d89b1216fcf6fb05f6d63763d38cd722e4c606a18645f9813117c5fedaacb2fc
• Download URL:
  https://repository.library.noaa.gov/view/noaa/50353/noaa_50353_DS1.pdf
• File Type:
  [PDF - 22.39 MB ]