R.I. Gen. Laws § 20-11-5: Sale of freshwater fish.

No person shall sell, or offer for sale, within this state, any trout, black bass, pickerel, northern pike, Atlantic salmon, American shad, or yellow perch taken from any freshwater streams, rivers, ponds, or lakes within the jurisdiction of this state, excepting any of these fish that are artificially cultivated in private ponds as authorized by law.