Abstract

Based on the fact that wild spiny lobster stocks have attained their maximum capacity of exploitation, the spiny lobster semi culture is seen as a good candidate for cultivation. It has a high potential in the Caribbean waters, because of its high demand, high commercial value and its feasibility to be grown in floating cages. However, post larval availability seems to be a bottleneck constraining this activity. Few species have been grown in four south East Asian countries, particularly in Viet Nam where up to 1,500 tons are produced in cages. None of the research and development programs addressed to the lobster cultivation, apart from those already mentioned, has attained success. Therefore, in this paper a numerical model was developed with the intention to evaluate the feasibility of a semi-culture. Results confirm the expectations, meaning that it is viable; however, the following weak point could be identified as the main aspects constraining the activity: low density of post-larvae caught in collectors imposing the need to deploy a high number of collectors and a large number of cages imposing high costs of maintenance. These two aspects imply high labor costs leading to a non-profitable activity. In conclusion, the semi-culture of the Caribbean spiny lobster is feasible but with the current operational costs it is not economically viable.

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