AN APPROACH TO THE REPRODUCTION AND GROWTH OF SHRIMP EXOPELAEMON CARINICANDA CULTURED IN EARTHEN PONDS WITH REFERENCE TO ITS MAXIMUM SUSTAINING YIELD ON CATCH ROTATION
The reproduction and growth of Exopelaemon carinleanda(Holthuis)cultUred in earthen ponds with reference tO its maximum sustaining yield oncatch rotation have been conducted. The shrimp can reach first majority after 3months of culture. The percentage of berried females against to total number ofshrimp was 3.84-16.71%. The mean relative fecundity was 512.70 eggs/g. Therelationship between the age (t,month)and the body length (L,cm)ean be expressed by th6 equation Lt = 10. 54[1 - e-0.1412(t+0.54)]. The weight (W,g)-age (t,month)celationship can be described as Wt = 18 .30[1 - e-0.1412(t+054)]8. The total mortality of E. carinfeande for pond cultUre was calculated tO be 0.6270(includingnacreal mortality of 0.3526 and catehing mortality 0.2744). At present the ageclass ila the harvest is mainly three-month old. In such a case it would be difficulttO maintain the maximum sustaining yield. If the oatehable age class can be shiftto four-mom,h old and the fishing effort is controlled tO 1.40, 48.38N merementin acal yield might be expected and the primary relative abundance of the reproduotlye population can be maintained in a stable state.