Sustainable exploitation of temperate fish stocks

The theory of maximum sustainable yield (MSY) underpins many fishery management regimes and is applied principally as a single species concept. Using a simple dynamic biomass production model we show that MSY can be identified from a long time series of multi-stock data at a regional scale in the pr...

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Bibliographic Details
Published in:Biology Letters
Main Authors: Sparholt, Henrik, Cook, Robin M.
Format: Text
Language:English
Published: The Royal Society 2010
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2817242
http://www.ncbi.nlm.nih.gov/pubmed/19740893
https://doi.org/10.1098/rsbl.2009.0516
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Summary:The theory of maximum sustainable yield (MSY) underpins many fishery management regimes and is applied principally as a single species concept. Using a simple dynamic biomass production model we show that MSY can be identified from a long time series of multi-stock data at a regional scale in the presence of species interactions and environmental change. It suggests that MSY is robust and calculable in a multispecies environment, offering a realistic reference point for fishery management. Furthermore, the demonstration of the existence of MSY shows that it is more than a purely theoretical concept. There has been an improvement in the status of stocks in the Northeast Atlantic, but our analysis suggests further reductions in fishing effort would improve long-term yields.