The ecological and economic potential for offshore mariculture in the Caribbean

Lennon R. Thomas (), Tyler Clavelle, Dane H. Klinger and Sarah E. Lester
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Lennon R. Thomas: University of California, Santa Barbara
Tyler Clavelle: University of California, Santa Barbara
Dane H. Klinger: Stanford University
Sarah E. Lester: Florida State University

Nature Sustainability, 2019, vol. 2, issue 1, 62-70

Abstract: Abstract Offshore mariculture could enable increased seafood production and economic development while alleviating pressure on coastal ecosystems and wild fisheries. In the Caribbean, however, an integrated assessment of the ecological and economic potential for mariculture in the region is lacking. We assess site suitability and develop a spatial bioeconomic model to predict yields and profits for offshore cobia (Rachycentron canadum) mariculture across 30 jurisdictions in the Caribbean. We find that (1) approximately 1.4% of the study area may be technically feasible; (2) the model could avoid conflicts with other uses and sensitive habitats and protected areas; and (3) the model could be economically profitable, with the potential to produce almost half the amount of seafood that is currently harvested from wild fisheries globally. Here, we show that potential farm-scale production and profitability vary across and within countries and that accounting for the foreign investment risk associated with a country will impact estimated farm profitability.

Date: 2019
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DOI: 10.1038/s41893-018-0205-y

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