Estimates of cetacean and pinniped bycatch in the 2012 New England sink and Mid-Atlantic gillnet fisheries

Hatch, Joshua M.; Orphanides, Christopher

doi:10.7289/V5NP22F9

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Estimates of cetacean and pinniped bycatch in the 2012 New England sink and Mid-Atlantic gillnet fisheries

2014
By Hatch, Joshua M. ; Orphanides, Christopher
Series: Northeast Fisheries Science Center reference document ; 14-02

[PDF-1.34 MB]

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Alternative Title:

Cetacean and pinniped bycatch in the 2012 New England sink and Mid-Atlantic gillnet fisheries
Personal Author:

Hatch, Joshua M. ; Orphanides, Christopher

Hatch, Joshua M. ; Orphanides, Christopher Less -
Corporate Authors:

Northeast Fisheries Science Center (U.S.)
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NEFSC (Northeast Fisheries Science Center) Less -
Description:

"This report provides estimated takes of 6 species of small cetaceans and pinnipeds bycaught in the New England sink (NESG) and mid-Atlantic (MAG) gillnet fisheries. The 2012 serious injuries and total mortalities in the NESG fishery were 277 (CV = 0.59) North Atlantic harbor porpoises (Phocoena phocoena phocoena), 95 (CV = 0.40) short-beaked common dolphins Delphinus delphis delphis), 9 (CV = 0.92) Atlantic white-sided dolphins (Lagenorhynchus acutus), 542 (CV = 0.19) gray seals (Halichoerus grypus grypus), 252 (CV = 0.26) harbor seals (Phoca vitulina concolor), and 6 (CV = 0.87) Risso's dolphins (Grampus griseus). NESG estimates are based on observed takes consisting of 34 harbor porpoises, 6 short-beaked common dolphins, 1 Atlantic white-sided dolphin, 91 gray seals, 37 harbor seals, and 1 Risso's dolphin. The 2012 serious injuries and total mortalities in the MAG fishery were 63 (CV = 0.83) harbor porpoises, 15 (CV = 0.93) short-beaked common dolphins, and 14 (CV = 0.98) gray seals. MAG estimates are based on observed takes consisting of 2 harbor porpoises, 1 short-beaked common dolphin, and 1 gray seal. Relative to 2011, total annual bycatch of all marine mammal species, save short-beaked com-mondolphin, hasdeclined. However, high uncertainty around estimated takes confounds definitive trends in marine mammal bycatch within the NESG and MAG fisheries." [doi:10.7289/V5NP22F9 (http://dx.doi.org/10.7289/V5NP22F9)]
Content Notes:

by Joshua M. Hatch, Christopher D. Orphanides.

"March 2014."

"Web version posted May 21, 2014"--Document's home page at http://nefsc.noaa.gov/publications/crd/crd1402/

doi:10.7289/V5NP22F9 (http://dx.doi.org/10.7289/V5NP22F9)

System requirements: Adobe Acrobat Reader.

Includes bibliographical references (pages 9-10).
Keywords:

[+]

Bycatches (Fisheries) Cetacea Dolphins Effect Of Fishing On Environmental Aspects Gillnetting Marine Resources Conservation Mortality Pinnipedia
Series:

Northeast Fisheries Science Center reference document ; 14-02
DOI:

http://doi.org/10.7289/V5NP22F9
Document Type:

Miscellaneous
Place as Subject:

Atlantic Coast (New England) ; Atlantic Coast (Middle Atlantic States)

Atlantic Coast (New England) ; Atlantic Coast (Middle Atlantic States) Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:f7898fdc4b1d1611cafc937b1f79b672357bd14be2dfcab197a63bf6e20b126c
Download URL:

https://repository.library.noaa.gov/view/noaa/4718/noaa_4718_DS1.pdf
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Estimates of cetacean and pinniped bycatch in the 2012 New England sink and Mid-Atlantic gillnet fisheries

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