Controlling the Biological Invasion of a Commercial Fishery by a Space Competitor: A Bioeconomic Model with Reference to the Bay of St-Brieuc Scallop Fishery

Marjolaine Frésard and Jean Boncoeur
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Marjolaine Frésard: University of Western Brittany
Jean Boncoeur: University of Western Brittany

Agricultural and Resource Economics Review, 2006, vol. 35, issue 1, pages 78–97

Abstract: This paper presents a bioeconomic model of a commercial fishery facing biological invasion by an alien species acting as a space competitor for the native species. The model is illustrated in a case study of the common scallop fishery of the Bay of St-Brieuc (France), where biological invasion by a slipper-limpet (Crepidula fornicata) is now addressed by a control program. First we present the model, which combines the dynamics of the two competing stocks. We then use the model to analyze the equilibrium of the fishery under various assumptions concerning invasive species control, and to assess the social cost of the invasion. Finally we propose a set of dynamic simulations concerning the ongoing program, emphasizing the influence of its starting date on its overall economic results.

Keywords: aquatic invasive species; biological invasion control; common scallop; ecosystemic fisheries management; plurispecies bioeconomic modeling; slipper-limpet (search for similar items in EconPapers)

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