It is unlawful for any person, in or upon any public lake or pond within or owned by the city:
A. To use minnows for bait;
B. To catch more than six trout per day;
C. To enter, swim, wade, or boat;
D. To cast overhead from any bridge or adjoining road;
E. To place or throw any material, chemical, rubbish, trash, rocks, or brush into; or
F. To clean fish in the water or in the surrounding banks. (Ord. 1174-81, 1981).