A 4500-year time series of Pacific cod (Gadus macrocephalus) size and abundance: archaeology, oceanic regime shifts, and sustainable fisheries

Maschner, Herbert D. G. and Betts, Matthew W. and Reedy-Maschner, Katherine L. and Trites, Andrew W. (2008) A 4500-year time series of Pacific cod (Gadus macrocephalus) size and abundance: archaeology, oceanic regime shifts, and sustainable fisheries. Fishery Bulletin, 106(4), pp. 386-394.

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Abstract

A 4500-year archaeological record of Pacific cod (Gadus macrocephalus) bones from Sanak Island, Alaska, was used to assess the sustainability of the modern fishery and the effects of this fishery on the size of fish caught. Allometric reconstructions of Pacific cod length for eight prehistoric time periods indicated that the current size of the nearshore, commercially fished Pacific cod stocks is statistically unchanged from that of fish caught during 4500 years of subsistence harvesting. This finding indicates that the current Pacific cod fishery that uses selective harvesting technolog ies is a sustainable commercial fishery. Variation in relative Pacific cod abundances provides further insights into the response of this species to punctuated changes in ocean climate (regime shifts) and indicates that Pacific cod stocks can recover from major environmental perturbations. Such palaeofisheries data can extend the short time-series of fisheries data (<50 yr) that form the basis for fisheries management in the Gulf of Alaska and place current trends within the context of centennial- or millennial-scale patterns.

Item Type: Article
Title: A 4500-year time series of Pacific cod (Gadus macrocephalus) size and abundance: archaeology, oceanic regime shifts, and sustainable fisheries
Personal Creator/Author:
CreatorsEmail
Maschner, Herbert D. G.
Betts, Matthew W.
Reedy-Maschner, Katherine L.
Trites, Andrew W.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 106
Number: 4
Page Range: pp. 386-394
Date: 2008
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8820
Depositing User: Patti M. Marraro
Date Deposited: 12 Jun 2012 17:55
Last Modified: 12 Jun 2012 17:55
URI: http://aquaticcommons.org/id/eprint/8820

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