Growth pattern in the slender river prawn Macrobrachium idella (Hilgendorf)

The growth of a few important taxonomic characters such as length of carapace, telson and rostrum and width of carapace of river prawn Macrobrachium idella, were studied. Significant difference in the pattern of growth was observed in males and females with regard to all the characters. The growth was faster in males as regard to the lengths of carapace and telson and carapace width in females. Average size was however greater in females with respect to all the characters studied. The species clearly exhibited sexual dimorphism