Survival of white marlin (Tetrapturus albidus) released from commercial pelagic longline gear in the western North Atlantic

Kerstetter, David W. and Graves, John E. (2006) Survival of white marlin (Tetrapturus albidus) released from commercial pelagic longline gear in the western North Atlantic. Fishery Bulletin, 104(3), pp. 434-444.

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Official URL: http://fishbull.noaa.gov/1043/kerstetter.pdf

Abstract

To estimate postrelease survival of white marlin (Tetrapturus albidus) caught incidentally in regular commercial pelagic longline fishing operations targeting swordfish and tunas, short-duration popup satellite archival tags (PSATs) were deployed on captured animals for periods of 5−43 days. Twenty (71.4%) of 28 tags transmitted data at the preprogrammed time, including one tag that separated from the fish shortly after release and was omitted from subsequent analyses. Transmitted data from 17 of 19 tags were consistent with survival of those animals for the duration of the tag deployment. Postrelease survival estimates ranged from 63.0% (assuming all nontransmitting tags were evidence of mortality) to 89.5% (excluding nontransmitting tags from the analysis). These results indicate that white marlin can survive the trauma resulting from interaction with pelagic longline gear, and indicate that current domestic and international management measures requiring the release of live white marlin from this fishery will reduce fishing mortality on the Atlantic-wide stock.

Item Type: Article
Title: Survival of white marlin (Tetrapturus albidus) released from commercial pelagic longline gear in the western North Atlantic
Personal Creator/Author:
CreatorsEmail
Kerstetter, David W.
Graves, John E.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 104
Number: 3
Page Range: pp. 434-444
Date: 2006
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8980
Depositing User: Patti M. Marraro
Date Deposited: 03 Aug 2012 19:04
Last Modified: 03 Aug 2012 19:04
URI: http://aquaticcommons.org/id/eprint/8980

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