A pulse fishery model with closures as function of the catch: conditions for sustainability.

Authors :: Córdova-Lepe F
Del Valle R
Robledo G
Source :: Mathematical biosciences [Math Biosci] 2012 Sep; Vol. 239 (1), pp. 169-77. Date of Electronic Publication: 2012 May 22.
Publication Year :: 2012
Abstract: We present a model of single species fishery which alternates closed seasons with pulse captures. The novelty is that the length of a closed season is determined by the remaining stock size after the last capture. The process is described by a new type of impulsive differential equations recently introduced. The main result is a fishing effort threshold which determines either the sustainability of the fishery or the extinction of the resource.<br /> (Copyright © 2012 Elsevier Inc. All rights reserved.)

Subjects :: Animals
Conservation of Natural Resources economics
Extinction, Biological
Fisheries economics
Population Dynamics
Conservation of Natural Resources statistics & numerical data
Fisheries statistics & numerical data
Fishes
Models, Biological

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