Manatee speed zones
U.S. Fish and Wildlife Service
http://www.fws.gov/northflorida/Manatee/Documents/MPARules/index-federal-mpa-maps.htm
State manatee speed zones for Volusia County
Florida Fish and Wildlife Conservation Commission
Volusia County Mantee Protection Zones App with Interactive Map
http://volusiacountyfl.maps.arcgis.com/home/item.html?id=f72942ab1088498299536850c7c3a3c5
Click on "View Application" for an interactive map.
(*This map represents the State of Florida manatee protection areas as described in the Florida Administrative Code (FAC) Chapter 68C-22.)