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Description. Manatees weigh 400 to 550 kg (880 to 1,210 lb), and average 2.8 to 3.0 m (9 ft 2 in to 9 ft 10 in) in length, sometimes growing to 4.6 m (15 ft 1 in) and 1,775 kg (3,913 lb) and females tend to be larger and heavier than males. At birth, baby manatees weigh about 30 kg (66 lb) each.
Between 1985 and 2017, 53% of adult-manatee mortalities were the result of boat strikes. [68] 96% of adult Florida manatee carcasses have scars from a boat collision with some individuals showing signs of 10 or more boat strikes. [78] Manatees can hear boats, but they oftentimes do not have enough time to get out of the way of a fast ...
In 1974, the Sirenia Project was established in Gainesville, Florida to provide manatee documentation and rescue programs. In 1976, Sea World of Florida began a Manatee Rescue and Rehabilitation Program. [12] The Florida Manatee Sanctuary Act passed in 1978, amending the 1907 state law.
In 2021 and 2022, Florida’s manatee population took a hit as thousands of manatees died of starvation. Manatees were dying in record-breaking numbers. But that trend may be slowing down
Items found in the deceased manatees' GI tracts included condoms, plastic bags, Raschel knit polyester, unknown plastic debris, and ice cream and sanitary product wrappers. [79] A study at the University of Miami in Florida assessed 439 manatee carcasses that were recovered and necropsied between 1978 and 1986.
The dugong (/ ˈ d (j) uː ɡ ɒ ŋ /; Dugong dugon) is a marine mammal.It is one of four living species of the order Sirenia, which also includes three species of manatees.It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.
Binomial name. Trichechus senegalensis. Link, 1795. African manatee range. The African manatee (Trichechus senegalensis), also known as the West African manatee, is a species of manatee that inhabits much of Western Africa – from Senegal to Angola. [3] It is the only manatee species to be found in the Old World.
Amazonian manatee. The Amazonian manatee (Trichechus inunguis) is a species of manatee that lives in the Amazon Basin in Brazil, Peru, Colombia and Ecuador. [2] It has thin, wrinkled brownish or gray colored skin, with fine hairs scattered over its body and a white chest patch. [4][5] It is the smallest of the three extant species of manatee.