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Dynamics of discovery and exploitation: the case of the Scotian Shelf groundfish fisheries.

par Allen, Peter ;McGlade, Jacqueline
Référence Canadian journal of fisheries and aquatic sciences, 43, 6, page (1187-1200)
Publication Publié, 1986

Article révisé par les pairs

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Résumé :

The bases and shortcomings of the current models used in fisheries management are briefly examined. An alternative set of models in part based on the Volterra-Lotka equations are developed which incorporate recent advances in our understanding of the evolution of complex systems. Simulations based on a dynamic model of a Nova Scotia fishery reveal that human responses amplify rapid random fluctuations in recruitment and excite strong Volterra- Lotka type oscillations in a system that would normally repose in a stable statonary state. A dynamic, multispecies, multifleet spatial model calibrated in the Nova Scotian groundfish fisheries is presented and used to explore the concepts of 'discovery' and 'exploitation'.-Authors