Acta Biológica Colombiana (Jan 1987)
Potencial cosechable de la Ostra Crassostrea rhizophorae (Guilding), en la ciénaga grande de Santa Marta, Colombia
Abstract
The potencial standing crop of oyster Crassostrea rhizophorae has been calculated as 938,6 tons oyster meat per year (wet-weight) for market sized oyster, in the northern zone of the Cienaga Grande de Santa Marta. It has been estimated that the oyster-bank area within this zones covers 3.000.000 sq.m. The calculated actual oyster standing crop for that area during this research (April-November 1982) was 3,9 tons of oyster-meat (wet-weight) and the actual catch 2,0 tons (in the same period). This reduction in the actual standing crop of oyster is mainly the result of: 1. The low prolonged salinity and the sediment causes mass mortality on oyster population; 2. Deterioration of the quality and available amounts of supporting shell substratum, required by oyster seedling attach and growth until they reach comercial size.