I found this:

Recreational fishermen not fishing in Mississippi waters may transport and land
fish that meet the minimum size and creel limits of the waters in which they
were legally caught. Said recreational fishermen must possess a valid salt-
water sportfishing license as may be required in the waters where the fish were
caught. In the absence of minimum size or creel limits in another jurisdiction,
Mississippi law will prevail.

Here:

http://www.dmr.state.ms.us/joomla16/...s/reg-book.pdf