Prospects and problems in cage culture of giant tiger shrimp in Vellar estuary

The culture of the giant tiger shrimp Penaeus monodon was planned to be carried out for 90 days covering premonsoon and monsoon seasons in a cage (5 × 4 × 1 m) in Vellar estuary, feeding with a supplementary feed. Seeds (65 mm in size and weight 1.5 g) were stocked at the rate of 120,000 seeds/ha (2...

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Bibliographic Details
Published in:Current science (Bangalore) 1994-10, Vol.67 (8), p.612-614
Main Authors: Shanmugam, A., Selvamani, John Peter, Kannupandi, T.
Format: Article
Language:English
Subjects:
Body weight
Brackish
Estuaries
Flood damage
Floods
Indian culture
Japanese culture
Penaeus monodon
Rain
Rainy seasons
RESEARCH COMMUNICATIONS
Salinity
Shrimp
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Summary:The culture of the giant tiger shrimp Penaeus monodon was planned to be carried out for 90 days covering premonsoon and monsoon seasons in a cage (5 × 4 × 1 m) in Vellar estuary, feeding with a supplementary feed. Seeds (65 mm in size and weight 1.5 g) were stocked at the rate of 120,000 seeds/ha (240 seeds/20 m2). The juvenile shrimps were fed twice a day with the pelletized feed to 10% of their body weight. The average length of the shrimps after 60 days was 127 mm and the average weight was 17.8 g having a growth rate of 1.03 mm and 0.27 g per day. The autoentrants were also collected and recorded. The culture experiment could be carried out only for 60 days after which there was an unprecedented flood lasting for 10 days in Vellar estuary due to maximum rainfall in the season, which ultimately damaged the cage, resulting in total loss of shrimps. The environmental parameters like salinity, temperature, hydrogen ion concentration and dissolved oxygen were monitored fortnightly and were found to be ranging from 0.3 to 30.0‰, 24 to 34°C, 7.5 to 8.4 and 3.6 to 5.7 ml/l respectively.
ISSN:0011-3891