Iowa Code Title XI. Natural Resources [Chs. 455-485] § 482.9. Unlawful methods

1. To use commercial gear which is not in accordance with this chapter or the rules of the commission.

2. To use commercial gear within nine hundred feet from a navigation dam on the boundary waters.

3. To use commercial gear within three hundred feet from the mouth of a tributary stream emptying into the boundary waters.

4. For a person to lift or to fish licensed commercial gear of another person, except when under the direct supervision of the licensee as provided in section 482.7.

5. To employ chemicals, electricity, or explosives into the water for taking fish, turtles, or freshwater mussels except as authorized by the director.

6. To have in one's possession game fish or other fish, turtles, or mussels deemed illegal by other provisions of law while engaged in commercial activities. A fish caught in commercial fishing that is not lawful to possess shall be handled with wet hands and immediately released under water with as little injury as possible.

7. To block or inhibit navigation through channels with commercial gear unless a minimum of three feet of water depth is maintained over float lines of any entanglement gear or leads to trap nets. Gear shall not block over one-half the width of a navigable channel if there is less than three feet of water over the gear.