Potential use of offshore marine structures in rebuilding an overfished rockfish species, bocaccio (Sebastes paucispinis)

Love, Milton S. and Schroeder, Donna M. and Lenarz, William and MacCall, Alec and Bull, Ann Scarborough and Thorsteinson, Lyman (2006) Potential use of offshore marine structures in rebuilding an overfished rockfish species, bocaccio (Sebastes paucispinis). Fishery Bulletin, 104(3), pp. 383-390.

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Abstract

Although bocaccio (Sebastes paucispinis) was an economically important rockfish species along the west coast of North America, overfishing has reduced the stock to about 7.4% of its former unfished population. In 2003, using a manned research submersible, we conducted fish surveys around eight oil and gas platforms off southern California as part of an assessment of the potential value of these structures as fish habitat. From these surveys, we estimated that there was a minimum of 430,000 juvenile bocaccio at these eight structures. We determined this number to be about 20% of the average number of juvenile bocaccio that survive annually for the geographic range of the species. When these juveniles become adults, they will contribute about one percent (0.8%) of the additional amount of fish needed to rebuild the Pacific Coast population. By comparison, juvenile bocaccio recruitment to nearshore natural nursery grounds, as determined through regional scuba surveys, was low in the same year. This research demonstrates that a relatively small amount of artificial nursery habitat may be quite valuable in rebuilding an overfished species.

Item Type: Article
Title: Potential use of offshore marine structures in rebuilding an overfished rockfish species, bocaccio (Sebastes paucispinis)
Personal Creator/Author:
CreatorsEmail
Love, Milton S.
Schroeder, Donna M.
Lenarz, William
MacCall, Alec
Bull, Ann Scarborough
Thorsteinson, Lyman
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 104
Number: 3
Page Range: pp. 383-390
Date: 2006
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Management
Item ID: 8975
Depositing User: Patti M. Marraro
Date Deposited: 03 Aug 2012 19:08
Last Modified: 03 Aug 2012 19:08
URI: http://aquaticcommons.org/id/eprint/8975

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