期刊
RESOURCE AND ENERGY ECONOMICS
卷 35, 期 2, 页码 113-134出版社
ELSEVIER
DOI: 10.1016/j.reseneeco.2012.12.004
关键词
Fishery management; Growth overfishing; Recruitment overfishing; Optimal harvesting; Age-structured model
We characterize optimal fishery management in an age-structured, bio-economic model where two age groups are harvested with costly and imperfect selectivity. We show that a system of tradable fishing permits, each allowing to harvest a specific number of fish that differs with age group, implements optimal age-structured harvesting, while traditional biomass quotas fail to solve the problem of growth overfishing. With our system, gear restrictions (such as mesh-size prescriptions) become obsolete. We apply our model to the Eastern Baltic cod fishery and quantify the benefits of optimal age-structured management. (C) 2013 Elsevier B.V. All rights reserved.
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