Incentives for Optimal Management of Age-Structured Fish Populations

Martin Quaas, Till Requate, Kirsten Ruckes, Anders Skonhoft, Niels Vestergaard, Rudi Voss

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    Abstract

    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.

    OriginalsprogEngelsk
    TidsskriftResource and Energy Economics
    Vol/bind35
    Udgave nummer2
    Sider (fra-til)113-134
    ISSN0928-7655
    DOI
    StatusUdgivet - 2013

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