An Open-Access Model of Fisheries and Nutrient Enrichment in the Black Sea

Marine Recource Economics, Vol. 20, No. 3, pp. 263-285, 2005

Posted: 10 Jun 2008

See all articles by Duncan Knowler

Duncan Knowler

Simon Fraser University (SFU) - School of Resource and Environmental Management

Edward B. Barbier

Colorado State University, Fort Collins - Department of Economics

Ivar E. Strand

University of Maryland - Department of Agricultural & Resource Economics

Abstract

As the worlds marine ecosystems deteriorate due to pollution and overfishing, there is an urgent need to investigate links between the two problems. We assess the effects of improving environmental quality in the presence of such linkages, recognizing that the impact of pollution on fisheries may be complex and that efficiency benefits from pollution control may be limited in open-access fisheries. Using a dynamic bioeconomic modeling approach, we incorporate habitat quality in the presence of ecological 'regime shifts' and analyze the comparative static effects of an exogenous reduction in nutrient inputs. We apply the approach to the Black Sea anchovy fishery, where the introduction of an exotic comb jelly caused the 'regime shift.' WE show that pollution abatement significantly raises catch, employment, and revenues as the long-run equilibrium of the system, but only if abatement prevents the regime shift. Ultimately, for substantial efficiency benefits to arise from nutrient abatement, the open-access problem must be addressed as well.

Keywords: Anchovy, Black Sea, economics, eutrophication, Mnemiopsis leidyi, nutrients, open-access

Suggested Citation

Knowler, Duncan and Barbier, Edward B. and Strand, Ivar E., An Open-Access Model of Fisheries and Nutrient Enrichment in the Black Sea. Available at SSRN: https://ssrn.com/abstract=1141354

Duncan Knowler (Contact Author)

Simon Fraser University (SFU) - School of Resource and Environmental Management ( email )

888 University Drive
Burnaby, British Colombia V5A 1S6
Canada
604-291-3421 (Phone)

Edward B. Barbier

Colorado State University, Fort Collins - Department of Economics ( email )

Fort Collins, CO 80523-1771
United States

Ivar E. Strand

University of Maryland - Department of Agricultural & Resource Economics ( email )

Symmons Hall, Rm 2200
University of Maryland
College Park, MD 20742-5535
United States
301-405-1293 (Phone)

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