No just a fine from $100 to $500 fine and suspension of the license they don't have lol. hunting without a license is a misdemeanor I assume fishing without is the same It really only get serious if you are selling the kill or have alligator or crocidile or their eggs that is a felony I think. They are also more worried about salt fish like snook, tarpon and sea turtles. But this is just off the top of my head.
Here I googled it, 379 is FWC and us bank fisherman might want to read the trespassing law too that is 800 something.
http://www.flsenate.gov/Laws/Statutes/2012/379.401