Culture potential of the pearl oyster (Pinctada imbricata) from the Caribbean: 1. Gametogenic activity, growth, mortality and production of a natural population
Urban, H.-J. (2000). Culture potential of the pearl oyster (Pinctada imbricata) from the Caribbean: 1. Gametogenic activity, growth, mortality and production of a natural population. Aquaculture 189: 361-373
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486; e-ISSN 1873-5622, more
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| Abstract |
Gametogenic activity, growth, mortality and somatic production of an unexploited population of Pinctada imbricata from the Cabo de la Vela (Guajira, Colombian Caribbean, 12°10'N, 72°20'W) was studied. P. imbricata exhibits a continuous gametogenic cycle with a 5-month period (January to June) of high gametogenic activity. Gametogenesis is inversely correlated to temperature, suggesting a relation between spawning and upwelling-induced food availability. Final growth parameters according to the von Bertalanffy-growth equation, estimated from tagging-recapture data, were L(alpha) =84.0 mm and K=0.939 year-1; total mortality, corresponding to natural mortality M, was calculated as Z=2.687 year-1. The P/B-ratio for this population estimated with the weight specific growth rate method was 1.515. From the results, it was generally concluded that P. imbricata has a large aquaculture potential in this region owing to its continuous gametogenic cycle, and a high growth and production rate. |
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