The provisions of sections 26-111 to 26-117, inclusive, shall not apply to the taking of fish for commercial purposes and shall not affect any statute regulating fishing in any lake, pond or reservoir used for domestic water supply, nor shall any action be taken under the provisions of said sections which will unreasonably interfere with the proper management of a public water supply system.
Conn. Gen. Stat. § 26-116
(1955, S. 2522d.)