Biology and Potential Use of Pacific Grenadier, Coryphaenoides acrolepis, off California

Matsui, Tetsuo and Kato, Susumu and Smith, Susan E. (1991) Biology and Potential Use of Pacific Grenadier, Coryphaenoides acrolepis, off California. Marine Fisheries Review, 52(3), pp. 1-17.

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Abstract

Grenadiers (family Macrouridae) are the most abundant fish on most continental slope areas worldwide. Off California the Pacific grenadier, Coryphaenoides acrolepis, occurs in relatively large numbers and may have marketing potential. This repon provides information on the biology of the species and catch results from a number of scientific cruises. Catch data on several other species found together with Pacific grenadier, panicularly sablefish, Anoplopoma fimbria, are also given. The fish were caught with a bottom trawl (15 trawls), and with free-vehicle longline gear (117 sets). The latter was a hook and line system in which the gear was dropped to the seafloor untethered to the fishing vessel, and floated to the surface, with the catch, when detachable weights were automatically released. Sablefish dominated longline catches in depths of 200-600fm (334-1,098m), while Pacific grenadier was most abundant between 600 and 1,OOOfm (1,098-1,830m). Best trawl catches of Pacific grenadier were made at depths between 615 and 675fm (1,125 and 1,235 m) and at 760fm (1,391 m). Ripe females were absent from our samples, but spent females were found during the entire year with highest numbers in the spring and early summer. Only one larva was found despite extensive sampling with plankton nets. Pacific grenadier was found to have good edible qualities by a taste-test panel, although the protein content (15 percent) and flesh yield (24 percent) were significantly lower than those of other fishes. A second species, the giant grenadier, Albatrossia pectoralis, was found to have exceptionally poor eating qualities and even lower protein content.

Item Type: Article
Title: Biology and Potential Use of Pacific Grenadier, Coryphaenoides acrolepis, off California
Personal Creator/Author:
CreatorsEmail
Matsui, Tetsuo
Kato, Susumu
Smith, Susan E.
Refereed: Yes
Journal or Publication Title: Marine Fisheries Review
Volume: 52
Number: 3
Page Range: pp. 1-17
Date: 1991
ISSN: 0090-1830
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Management
Item ID: 9929
Depositing User: Patti M. Marraro
Date Deposited: 22 Aug 2012 13:51
Last Modified: 22 Aug 2012 13:51
URI: http://aquaticcommons.org/id/eprint/9929

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