A person, whether or not an officer of a vessel, who discharges the ballast of a vessel into the navigable portion or channel of a bay, harbor, or river of the state, or within the jurisdiction of the state, so as to injuriously affect the navigable portion or channel, or to obstruct the navigation of the navigable portion or channel, upon conviction, is punishable by imprisonment in a jail for not less than three months nor more than one year, or by a fine of not less than $100 nor more than $500.