Question

what is the function of statocyst in prawn?

Answer 1

statocyst is a balance sensory receptor present in some aquatic invertebrates, including molluscs, bivalves, cnidarians, ctenophorans, echinoderms, cephalopods, and crustaceans. ...

Answer 2

Statocyst provides an information related to the movement of an animal to the brain which helps the animal in maintaining their balance it is mostly found in arthropods, and crustaceans.

In simple words, the statolith shifts as the animal moves. and Any movement large enough to throw the organism off balance causes the statolith to brush against tiny bristles which sends message to the brain to help him balance.