Quick update this is in the fishing regulations for this year and directly mentions cast nets, the bummer here may be no mesh hols size less then 1/4 inch, Included the section about minnow traps as well which may be the better option for personal use. I see no specific regulations in there relating to Lake Erie and its tributaries for any sort of minnow or forage fish netting.

CAST NETS
Forage fish and minnows may be taken with cast nets. It is unlawful to use a cast net with a square mesh less than ¼ inch or larger than 1 inch on a side, or with a diameter greater than 10 feet. It is illegal to use a cast net within a distance of 1,000 feet downstream from any dam posted with ODNR Division of Wildlife signs indicating cast net use is prohibited.

MINNOW OR BAIT FISH TRAPS
It is illegal for anglers to possess or use a min-now or bait fish trap larger than 24 inches in length and 12 inches in width. Additionally, possessing or using a minnow or bait fish trap with an opening larger than 1 inch is illegal. A tag must be attached to the trap(s) with the owners name and address, or the customer identification number