Ohio Revised Code Title XV. Conservation of Natural Resources § 1533.57

In the inland fishing district seining for minnows is prohibited from the first day of May to the fourteenth day of June, both inclusive, except in streams in which the average width of water at the time seined does not exceed twelve feet for a distance of fifty yards above and below the point seined. In such district no persons shall take, catch, buy, or sell minnows, except for bait, and the taking, transporting, or shipping of minnows out of the state is prohibited. In the inland fishing district no minnows shall be taken or caught except with a minnow seine not exceeding four feet in depth and eight feet in length. In the Lake Erie fishing district no minnows shall be taken with a minnow seine exceeding thirty feet in length. No person at any time in the inland fishing district shall have in his possession either alive or otherwise more than one hundred minnows, except persons, firms, associations, or corporations buying, selling, or dealing in bait. Such persons, firms, associations, or corporations must be licensed as provided in section 1533.40 of the Revised Code.