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Mariculture experiments at the Regional Centre National Institute of Oceanography, Cochin
Rao, T.S.S.; Gopalan, U.K.; George, M.J. (1976). Mariculture experiments at the Regional Centre National Institute of Oceanography, Cochin, in: Persoone, G. et al. (Ed.) Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 1. Research in mariculture at laboratory- and pilot scale. pp. 357
In: Persoone, G.; Jaspers, E. (Ed.) (1976). Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 1. Research in mariculture at laboratory- and pilot scale. IZWO: Wetteren. ISBN 90-6281-001-2. 620 pp., more
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Document type: Summary
Keyword
    Marine/Coastal
Authors  Top 
  • Rao, T.S.S.
  • Gopalan, U.K.
  • George, M.J.
Abstract
    The mariculture experiments conducted on a laboratory scale at the Regional Centre are meant to evolve suitable techniques for culturing of marine organisms, particularly shrimps inexpensively as they form one of the economically most important living resources of the Indian Seas. Late larval forms of penaeid shrimps obtained from Cochin Backwaters were fed on a mixed culture of phytoplankton. At mysis stage they were fed on copepods mass cultured in the laboratory. These copepods seem to be an effective substitute for Artemia salina L. nauplii which are widely accepted as a larval food for shrimp. The stage at which the post larvae have to be leaned on to solid food was determined by trial feeding. A compounded diet made of fishmeal and tapioca as major ingredients was offered to the settling post larvae and juveniles and satisfactory growth was observed upto 65-70 mm. Experiments carried out to evaluate the food selectivity of the shrimp Metapenaeus robsoni revealed that they generally preferred to feed on suitable live organisms. Growth of juvenile shrimps were observed to be significantly faster in relatively low saline medium. Experiments are under way for studying the influence of various environmental parameters on the growth of penaeid shrimps and on copepods and polychaetes.
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