Abstract
Growth in total length of juvenile Penaeus vannamei Boone was between 0·8 and 1·4 mm per day at water temperatures between 25 and 35 °C. Growth was density dependent at densities higher than 2·5 m −2. Substrate characteristics such as combustible organic content and rate of oxygen consumption, appeared to influence growth rate of shrimp. Mortality rate in enclosures at the lagoon edge was 41% per week. Population densities averaged about 0·3 individuals m −2 on the lagoon flats, but were higher in the canals and mangrove zones. Practical implications of the results for the commercial fishery are discussed.
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