Except as provided by further regulation of the Commissioner, the following waters are closed to fishing:
Dams with fishways.
The area within 150 feet of any dam in which a fishway is located and/or 150 feet of any part of any fishway.
This regulation shall not apply to the taking of river herring under 12 M.R.S. §6131.
13-188 C.M.R. ch. 55, § 03