Pacific Hake, Merluccius productus, Autecology: A Timely Review

Ressler, Patrck H. and Holmes, John A. and Fleischer, Guy W. and Thomas, Rebecca E. and Cooke , Kenneth C. (2007) Pacific Hake, Merluccius productus, Autecology: A Timely Review. Marine Fisheries Review, 69(1-4), pp. 1-24.

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Official URL: http://spo.nmfs.noaa.gov/mfr691-4/mfr691-41.pdf

Abstract

Pacific hake, Merluccius productus, the most abundant groundfish in the California Current Large Marine Ecosystem (CCLME), is a species of both commercial significance, supporting a large international fishery, and ecological importance, connecting other species as both predator and prey. Coastal Pacific hake migrations are characterized by movements between northern summer feeding areas and southern winter spawning areas, with variations in annual abundance, distribution, and the extent of these movements associated with varying climate-ocean conditions. In general, warm (cool) years with enhanced (reduced) stratification and poleward (equatorward) transport are often related to good (poor) recruitment, increased (decreased) northward distribution, and reduced (enhanced) growth. However, the classic periodic pattern of annual migration and distribution may no longer be fully representative. Based on recent advances in the understanding of climate-ocean variability off the U.S. west coast, we hypothesize that the annual movements of Pacific hake are more responsive to climate-ocean variability than previously thought, and further, that changes observed in Pacific hake distributions may reflect long-term changes in climate-ocean conditions in the CCLME. Therefore, an updated model of these relations is key to effective monitoring and management of this stock, as well as to devising scenarios of future change in the CCLME as a result of climate variations. The current state of knowledge of the relationship between the Pacific hake and its environment is reviewed, highlighting emerging ideas compared to those of the past, and priorities for future research are suggested.

Item Type: Article
Title: Pacific Hake, Merluccius productus, Autecology: A Timely Review
Personal Creator/Author:
CreatorsEmail
Ressler, Patrck H.
Holmes, John A.
Fleischer, Guy W.
Thomas, Rebecca E.
Cooke , Kenneth C.
Refereed: Yes
Journal or Publication Title: Marine Fisheries Review
Volume: 69
Number: 1-4
Page Range: pp. 1-24
Date: 2007
ISSN: 0090-1830
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Management
Item ID: 9704
Depositing User: Patti M. Marraro
Date Deposited: 14 Aug 2012 16:48
Last Modified: 14 Aug 2012 16:48
URI: http://aquaticcommons.org/id/eprint/9704

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