They are susceptible to starvation and predation. The Amazonian manatee lives in a more specialized environment than other manatees, living solely in freshwater, and preferring blackwater lakes and oxbows. A slow-moving, seal-shaped mammal, the manatee lives in shallow coastal waters or rivers with rich plant life. RANGE: Manatees take up residence primarily in Florida’s coastal waters during winter and migrate either as far north as the ... Amazonian Manatee), and West Africa (T. senegalensis, West African Manatee). Manatees are sirenians – and like whales, dolphins, and mythological mermaids, they never leave the water … however, they don’t have long hair, musical harps, or underwater kingdoms. They are grey/brown in colour and they have a sparse scattering of short hair on their body. These front limbs have nails. Its worldwide population is over 13,000. As in any animal population, a variety of diseases and parasites can be responsible for manatee deaths.  Although not a great deal is known about this species, it is hypothesized that the African manatee is very similar to the West Indian manatee (Trichechus manatus). Manatee Life Cycle Diagram The manatee life cycle looks like this: fetus->c alf->adult->breeding adult. There Are 3 Species of Manatees. They reach lengths of approximately 3 m (10 ft) and they weigh in the region of 450 Kgs (1,000 lbs). The Amazonian manatee species inhabit the Amazon River and the African manatee swims along the west coast and rivers of Africa. There are only four species in the order Sirenia still existing, with the only non-manatee member being the dugong in a separate family Dugongidae. The Amazonian manatee differs because it lacks fingernails compared to the other manatees. The Amazonian Manatee –an aquatic gentle giant The Manatee had an extinct cousin named the Steller's Sea Cow and is now unfortunately also endangered. When in the ocean, the manatee diet consists of seagrasses and marine algae. Swimming below you'll find the Bull Shark, an apex predator of the Amazon and one of the most dangerous creatures in the region. References . These gentle giants are about the size of a small car. 3. Choose from 411 different sets of manatees flashcards on Quizlet. Rumor has it that even one lives at Kitebach! In early 1996, about 150 manatees died in southwest Florida. It's time to head deep into the jungle to find out! By doing so, they keep the grass short, which helps maintain the health of the sea grass beds. Amazonian manatees become concentrated in confined areas when lakes dry up. A manatee’s lifespan is just a little shorter than a human’s, they live 60-70 years. Since Manatees habitat is in both freshwater and saltwater, they can eat both freshwater and saltwater plants. Habitat. 1 2. Some Amazonian manatees living in deep bodies of water apparently fast during dry seasons (November and December) when water levels drop as much as 9 to 15 m (30-50 ft.), eliminating their access to vegetation. They can grow to 4 metres (13ft) long and weigh up to 600kg (1,300 pounds). Manatees can live to about sixty years in the wild having no natural enemies and reach breeding age after five years for females and nine years for males. The Amazonian manatee (T. inunguis) is widely distributed throughout Amazonia and up to Peru, Ecuador and Colombia. There is also a big difference in their lifespan. Amazonian manatee Synonyms Trichecus inunguis Lifespan, ageing, and relevant traits Maximum longevity 40 years (captivity) Source ref. All three species—the Caribbean (found off Florida and Georgia), Amazonian, and African manatees—are declining in population because they have been heavily hunted for meat, oil, and hides. However, with recent conservation efforts the threat from hunting has dropped significantly. Manatees are believed to have evolved from a wading, plant-eating animal known as the Pezosiren. Predators.