Evaluation of the capture efficiency and size selectivity of four pot types in the prospective fishery for North Pacific giant octopus (Enteroctopus dofleini)

Barry, Patrick D. and Tamone, Sherry L. and Tallmon, David A. (2010) Evaluation of the capture efficiency and size selectivity of four pot types in the prospective fishery for North Pacific giant octopus (Enteroctopus dofleini). Fishery Bulletin, 108(1), pp. 39-44.

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Abstract

Over 230 metric tons of octopus is harvested as bycatch annually in Alaskan trawl, long-line, and pot fisheries. An expanding market has fostered interest in the development of a directed fishery for North Pacific giant octopus (Enteroctopus dofleini). To investigate the potential for fishery development we examined the efficacy of four different pot types for capture of this species. During two surveys in Kachemak Bay, Alaska, strings of 16 –20 sablefish, Korean hair crab, shrimp, and Kodiak wooden lair pots were set at depths ranging between 62 and 390 meters. Catch per-unit-of-ef for t estimates were highest for sablefish and lair pots. Sablefish pots caught significantly heavier North Pacific giant octopuses but also produced the highest bycatch of commercially important species, such as halibut (Hippoglossus stenolepis), Pacific cod (Gadus macrocephalus), and Tanner crab (Chionoecetes bairdi).

Item Type: Article
Title: Evaluation of the capture efficiency and size selectivity of four pot types in the prospective fishery for North Pacific giant octopus (Enteroctopus dofleini)
Personal Creator/Author:
CreatorsEmail
Barry, Patrick D.
Tamone, Sherry L.
Tallmon, David A.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 108
Number: 1
Page Range: pp. 39-44
Date: 2010
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8765
Depositing User: Patti M. Marraro
Date Deposited: 10 Jun 2012 09:02
Last Modified: 10 Jun 2012 09:02
URI: http://aquaticcommons.org/id/eprint/8765

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