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Global fishery development patterns are driven by profit but not trophic level


Sethi, SA and Branch, TA and Watson, RA, Global fishery development patterns are driven by profit but not trophic level, Proceedings of the National Academy of Sciences of the United States of America, 107, (27) pp. 12163-12167. ISSN 0027-8424 (2010) [Refereed Article]

DOI: doi:10.1073/pnas.1003236107


Successful ocean management needs to consider not only fishing impacts but drivers of harvest. Consolidating post-1950 global catch and economic data, we assess which attributes of fisheries are good indicators for fishery development. Surprisingly, year of development and economic value are not correlated with fishery trophic levels. Instead, patterns emerge of profit-driven fishing for attributes related to costs and revenues. Post-1950 fisheries initially developed on shallow ranging species with large catch, high price, and big body size, and then expanded to less desirable species. Revenues expected from developed fisheries declined 95% from 1951 to 1999, and few high catch or valuable fishing opportunities remain. These results highlight the importance of economic attributes of species as leading indicators for harvest-related impacts in ocean ecosystems.

Item Details

Item Type:Refereed Article
Keywords:Economic value; Ecosystem management; Food webs; Global fisheries; Indicators; article; cost; economics; environmental management; fishery; fishing; priority journal; profit; trophic level; Algorithms; Analysis of Variance; Animals; Commerce; Fishes
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Aquaculture and fisheries stock assessment
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - wild caught
Objective Field:Wild caught fin fish (excl. tuna)
UTAS Author:Watson, RA (Professor Reginald Watson)
ID Code:83728
Year Published:2010
Web of Science® Times Cited:149
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2013-03-21
Last Modified:2013-03-21

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