Marine Wildlife

Manatees and Boat Strike Injuries

Boat propeller strikes are the leading human-caused mortality for manatees, causing severe and often fatal injuries.

Key Facts

Over 90% of adult manatees in Florida waters have propeller scars from boat strikes
Boat strikes kill approximately 100 manatees annually in Florida alone — over 20% of human-caused deaths
Manatees are slow-moving and surface regularly to breathe, making them highly vulnerable to fast watercraft
Speed zone enforcement in manatee habitat reduces strike mortality significantly
Red tide algal blooms periodically kill hundreds of manatees through neurological toxin exposure

Welfare Considerations

Propeller injuries cause severe lacerations, internal trauma, and broken bones. Manatees that survive strikes may carry permanent disfigurement affecting thermoregulation and mobility. The combination of boat strikes, cold stress, and algal toxins creates a cumulative welfare burden on a recovering but still vulnerable species.

What You Can Do

Observe posted manatee speed zones when boating in Florida and Caribbean coastal waters
Report injured manatees to the Florida Fish and Wildlife Conservation Commission hotline
Support manatee rescue and rehabilitation facilities that treat boat-strike injuries