FWC says boats have killed 71 manatees so far this year.
One of these deaths has taken place in Sarasota County.
Lee County has experienced the most deaths with 11.
Manatee County has reported two of them.
Some boating advocates believe polluted waterways have reduced manatee habitats, making them more vulnerable to boat strikes.
FWC says this pace puts the state on a record-setting year.