Whoever does any of the following without proper authority shall be subject to the penalties under s. 29.971 (1):
(1) Enters upon the grounds of a state fish hatchery for the purpose of killing or taking fish.
(2) Kills or takes fish from any waters or grounds of a state fish hatchery.
(3) Injures any fish, or interferes harmfully with the ponds, streams, troughs or other property of a state fish hatchery.