Among the marine crustaceans found along the Indian coast, crab rank third after shrimp and lobsters for their esteemed seafood delicacy and also value of the fishery they support. The blue swimming crab, Portuns pelagicus displays 3 mating behaviours viz., contact, cradle carry position and mating.It has six embryonic stages, for example Blastula, Gastrula, Eyeplacode, pigment, hear beat and newly hatched first zoea. P. pelagicus has four zoeal and one megalopal stages. The larval stages are provided with Artemia naupill and Brachionus plicatilis as a feed. The larvae took 20-23 days to...