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Journal of Fisheries and Aquatic Science
Year: 2008  |  Volume: 3  |  Issue: 1  |  Page No.: 31 - 38

Autoentrants and Fouling Problem on Growth, Survival and Production of Cage Reared White Shrimp Penaeus indicus (H. Milne Edwards) in Vellar Estuary

P. Soundarapandian, P. Sivanadavel and T. Kannupandi    

Abstract: The present study was designed to find out the suitability of white shrimp, Penaeus monodon in the cages of Vellar estuary. In the previous experiments, the autoentrants and fouling were found to be disturbing the production and hence the present study deals with the controlling of this problem by changing the cages with fresh cages at regular intervals except control. Among the four uniform size rectangular cages (10X5X1.5 m) used, the first cage was treated as control, the second cage was changed at 15 days interval, the third cage was changed at 30 days interval and the fourth cage was changed at 60 days intervals. The culture was carried out for 120 days and the juveniles of size ranging from 3.3 to 4.0 g were stocked uniformly at the rate of 20 m-2 for all the cages. In the cage changed at 15 days interval, the autoentrants and fouling species were found to be less. The maximum growth of 25.5 g, survival rate of 96% and production rate of 491.52 g m-2 were recorded in the cage changed at the interval of 30 days. From the findings of the present study, it is suggested that the cage changed every 30 days regular interval is ideal for the higher production of P. indicus.

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