I have seen speed limits, but never paid much attention as Iím a 7 kt Boat
I have also seen many times slow manatee zones, except for the channel, in the channel I guess itís OK to run them down.
Only place I remember that comes to mind speed limit wise was Sarasota
However I have a tendency to avoid large built up areas when possible, so Iím sure there are more.
On, and very often where there are nice homes, itís a slow Manatee zone within 300 Ft of the shore, but when the houses end, you see a sign that says resume safe navigation
The Manatees I guess hang out by big houses?