Observations on the growth in certain penaeid prawns studied in prawn culture experiments in paddy field

Cochin the growth of the commerc ially important penaeid prawos in their juvenile sizes was traced. Average growth rates of 0.35 mm, 0.47 mm, 0.38 mm, and 0.49 mm per day in the case of Metapenaeus dobsoni. Metapenaeus monacaos, Mefopenaells ajjillis and Pel/aells indic/ls respectively were obtained. These rates are sli ghtly (aster when compared with the growth rates recorded for the diff!rent species in their c!tuarine phases in earlier work