I think that we all agree and understand that "limit" and "possession" are 2 different terms and 2 different things. Some species of fish limit and possession are the same, some are not. The question does not have an objective answer. The real answer is that it depends on if you can prove to ODNR that the fish were caught on different days. That depends on precautions that you take (Separate cooler, fish are frozen solid and obviously caught on a different day, overnight dock slip, dated pictures showing previous catch, etc...) then it depends on the officer that you get and how reasonable that they wish to be. No matter what precautions that you take, you are going to have a lot to prove and be subjective to the mindset and disposition of the ODNR officer.

During the jig bite they are so wound up about double limits being taken that there are plenty of stories of guys that have to try and prove that fish in possession at a camper and fish on the boat were caught on different days. I would hate to have to try and convince ODNR that fish in coolers on a boat were different days.

-Matt