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Aquaculture and Fisheries Commons

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Social and Behavioral Sciences

2008

Economics Working Papers (2002–2016)

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Bio-Economies Of Scope And The Discard Problem In Multiple Species Fisheries, Rajesh Singh, Quinn Weninger Oct 2008

Bio-Economies Of Scope And The Discard Problem In Multiple Species Fisheries, Rajesh Singh, Quinn Weninger

Economics Working Papers (2002–2016)

This paper considers the problem of multi-species fisheries management when targeting individual species is costly and at-sea discards of fish by fishermen are unobserved by the regulator. Stock conditions, ecosystem interaction, technological specification, and relative prices under which at sea discards are acute are identified. A dynamic model is developed to balance ecological interdependencies among multiple fish species, and scope economies implicit in a costly targeting technology. Three regulatory regimes, species-specific harvest quotas, landing taxes, and revenue quotas, are contrasted against a hypothetical sole owner problem. An optimal plan under all regimes precludes discarding. For both very low and very ...