Manatees are slow-moving, herbivorous marine mammals whose gentle nature makes them highly vulnerable to boat strikes, cold stress, and habitat loss. Conservation combines rescue programmes with habitat protection.
Manatee welfare harms are predominantly human-caused and acutely preventable. Boat strike injuries cause severe, painful trauma — propeller wounds can bisect limbs and cause deep body cavity injuries requiring months of intensive veterinary care to survive. Cold stress events cause clusters of weakened animals that require rescue and rehabilitation when water temperatures drop suddenly. Red tide toxic blooms caused by algal proliferation in nutrient-polluted waters kill hundreds of manatees in severe years. Individual welfare improvements come from rescue and rehabilitation centres, while population welfare requires seagrass restoration, boat speed regulation in manatee zones, and nutrient runoff reduction from agriculture.