Occurrence of larvae of commercially important penaeid prawns along the central west coast of India

S.C. Goswami, C.T. Achuthankutty, M.J. George


Penaeid larvae occurring in the coastal waters of the central west coast of India extending between 5 and 40 m depth zones in four transects and along 10 m depth zone between Vengurla and Janjira were studied. Larvae of six species of commercially important penaeid prawns were identified in these regions, viz, Metapenaeus monoceros, M. dobsoni, M. affinis, Penaeus indicus, P. merguiensis and Parapenaeopsis stylifera. In general, larvae were comparatively more abundant in the southern transects than in the northern transects. In the northern transects, larvae were mainly distributed between 5 and 10 m depth zones and in the southern transects, between 10 and 20 m depth zones. M. monoceros was found to be the dominant species, their larvae contributing to about 32.12% of the total larvae collected followed by M. affinis with 24.60%. Breeding in M. monoceros. M. affinis and M. dobsoni appears to be continuous whereas P. indicus, P. merguiensis and P. stylifera had a discontinuous breeding during the period of investigation. Of the 10 stations studied between Vengurla and Janjira, a major portion of the penaeid larvae occurred in Ratnagiri. Larvae of M. dobsoni were distributed in all the stations and were contributing to about 67.90% of the total larvae recorded


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