Abstract
Simple classical approaches to mathematical analysis of fisheries are inherently limited. Increased use of more realistic population models, in the form of age- or size-specific, density-dependent models based on physiological energetics, is proposed here. Recent, fishery-related results using models of this type illuminate such issues as cyclic behavior of populations, multiple equilibrium levels, and optimal policy. Specific results include: size-selective fishing can lead to unstable cycles, an increase in individual growth rate can maintain depressed equilibrium levels, optimal policy for size-specific, density-dependent models may involve pulse-fishing, and more realistic models of multispecies problems in the Antarctic may alter conclusions reached through simpler models.
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Botsford, L.W. (1981). More Realistic Fishery Models: Cycles Collapse and Optimal Policy. In: Vincent, T.L., Skowronski, J.M. (eds) Renewable Resource Management. Lecture Notes in Biomathematics, vol 40. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-46436-2_2
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DOI: https://doi.org/10.1007/978-3-642-46436-2_2
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