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Email the author (Login required) The fishing Schaefer model with an adaptive effort law promoting equilibrium
Submited: 2023-12-07 13:50:23 | Published: 2025-06-30 18:48:33
DOI: https://doi.org/10.3856/vol53-issue3-fulltext-3198
Abstract
Based on the classical Schaefer model, which considers a given constant effort and defines a sustainable catch by the existence of an equilibrium abundance, this article addresses the problem of gradually changing the effort so that the present stock is at balance or is in a value near to balance. More precisely, a law of effort adaptation is proposed based on the equilibrium effort-population relationship of the classical model. The properties of the new effort-population balance are concluded, and comparisons are presented concerning the fishery's maximum sustainable yield, maximum economic yield, and net present value.
