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7.2.3 Larval development
Metamorphosis and growth of larvae The eggs hatch into transparent, flat and leafy shaped larvae quite different from the adult and are called as Phyllosoma larvae. The Phyllosoma larvae have antennules, antennae, paired eyes and very long jointed setose appendages for swimming. Phyllosoma larvae are planktonic and are dispersed far and wide by currents. Their dispersal is further aided by the lengthy larval life, during which the larvae undergo about a dozen moults. In this process, lobster undergoes indirect development, involving a wide variety of Phyllosomal larval forms. In this indirect developmental process there is a final larval stage, which differs from the adult in many features. It acquires adult features to Puerulus larval stage. From this stage there is direct development to adult hood through progressive growth during which differentiation takes place. |
Last modified: Saturday, 24 December 2011, 10:30 AM