Effort optimisation in artisanal fisheries with multiple management objectives, collective quotas and heterogeneous fleets
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In this study, we analyse effort optimisation in common rights-based joint-stock artisanal
fisheries when several objectives are pursued by the authorities and the fleets are
heterogeneous. The purpose is to discuss policy options available to the authorities
and their implications in terms of trade-offs between goals. We apply a multi-objective
programming model to the sardine and anchovy artisanal fisheries in central southern
Chile. The results suggest that the regulatory system generates inefficient solutions for
profit and employment maximisation goals. Moreover, the fleet structure of the artisanal
organisations is central for the outcomes obtained by different policy simulations.
To improve effort assignment, the authorities should seek to increase flexibility
in the system.