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Estimates of cetacean and pinniped bycatch in the 2015 New England sink and mid-Atlantic gillnet fisheries



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  • Personal Author:
  • Corporate Authors:
    Northeast Fisheries Science Center (U.S.)
  • NOAA Program & Office:
  • Description:
    This report provides estimated bycatch of 5 species of small cetaceans and pinnipeds bycaught in the New England sink (NESG) and Mid-Atlantic (MAG) gillnet fisheries. The 2015 total serious injuries and mortalities in the NESG fishery were 177 (coefficient of variation [CV] = 0.28) harbor porpoises(Phocoena phocoena phocoena), 55 (CV = 0.54)shortbeaked common dolphins(Delphinus delphis delphis), 1021 (CV = 0.25) gray seals (Halichoerus grypus grypus), 474 (CV = 0.17) harbor seals (Phoca vitulina concolor), and 119 (CV = 0.34) harp seals (Pagophilus groenlandicus). The NESG estimates are based on observed bycatch consisting of 23 harbor porpoises, 3 short-beaked common dolphins, 131 gray seals, 87 harbor seals, and 12 harp seals. The 2015 total serious injuries and mortalities in the MAG fishery were 33 (CV = 1.16) harbor porpoises, 30 (CV = 0.55)short-beaked common dolphins, 15 (CV = 1.04) gray seals, and 48 (CV = 0.52) harbor seals. The MAG estimates are based on observed bycatch consisting of 2 harbor porpoises, 3 short-beaked common dolphins, 1 gray seal, and 5 harbor seals. Compliance with the 2010 Harbor Porpoise Take Reduction Plan pinger regulations was 86% in 2015, where compliance refers to the correct number of pingers used, not the pingers' functionality. Compliance rates in the 2015 MAG fishery were low for large mesh gillnets (55%) and relatively high for small mesh gillnets (87%).
  • Content Notes:
    by Christopher Orphanides and Joshua Hatch.

    "December 2017."

    Includes bibliographical references (pages 8-9).

  • Keywords:
  • Series:
    Northeast Fisheries Science Center reference document   17-18
  • DOI:
  • Document Type:
    Miscellaneous
  • Place as Subject:
    Atlantic Coast (U.S.)
  • Rights Information:
    Public Domain
  • Compliance:
    Library
  • Main Document Checksum:
    urn:sha256:69af92d12d290eb4a883ea75a1b5ca813372ae8e820922af37a830552da5ee85
  • Download URL:
  • File Type:
    Filetype[PDF - 1.94 MB ]
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