Heres a true story. a friend of mine caught two Rockfish this year off of Tillman Island from their sailboat. One was measured at 20 inches and the other at 24 inches so they were legal sized when they were caught. The motored through the narrows and anchored in Santa Domingo Creek and filleted the fish to have for dinner that night throwing everything else overboard for the gulls.
DNR boat with game warden came by their boat 1 hour later and inspected them finding the fillets and asked if they bought them to which they said no they had caught them. DNR warden mentioned he saw them pull them up when they were fishing near the Narrows and followed them.
He cited them and fined them for having fished up undersized Rockfish and said they must land at a dock before cleaning the fish. He stated the requirements were to bring them to land first or that anyone who caught undersized fish would just clean them on the boat immediately to avoid having to have them measured if they were legal if they were stopped.
They paid a $250 fine after fighting with a judge who sided with the warden.
Thats the DNR's sense