Question

What are the functions of Pelvic fin

Answer 1

The pelvic fins are actively controlled and used to provide powered corrective forces. Careful timing of the pelvic fin movement during whole-body movements allows the pelvic fins to generate forces that dampen the forces from the entire body, therefore stabilizing the fish.

Answer 2

allowed fish to very fine turn , help in balance,keep fish at level,prevent fish from rolling side to side.
i hope it will useful.