Species of the Week The Manatee
Where do they live? Warm water of shallow rivers, bays, estuaries & coastal waters Florida’s coastal waters during winter months As far north as Carolinas & as far west as Louisiana during summer months Spotty distribution along Central America & northern South America
What is their niche? They are a migratory species Manatees spend their time eating, resting, and in travel Graze for food along bottom & at the surface Consume 10-15% of their body weight daily Rest submerged at bottom or jut below surface They are herbivores that eat marine & fresh water plants They are gentle and slow moving They have no natural enemies They do not have rivals for food and territory
What are their adaptations? Flexible front limbs – steer as they swim Large, paddle tail – push through water Breathing method – lets more fresh oxygen into lungs Nostrils – close tightly when they dive “Marching molars” – teeth move forward as the front teeth wear down Large split upper lip – sides move at separate times to get food into mouth without hands Ridged pads behind lips – break down food before the molars grind it
What is threatening the Manatee’s survival? Most mortalities are human related: Collisions with watercraft Canal locks and flood control structures Ingestion of fish hooks & litter Entanglement in crab trap lines Habitat loss ****Only about 3,000 left today!!!
Distribution Of Manatees & Their Relatives This map shows the ranges of the 5 living species of manatees and dugongs. Florida Manatee: Southeast coast of United States Antillean Manatee: Caribbean and coast of Central America West African Manatee: Coast of Western Africa Amazonian Manatee: Amazon Dugong: Indian Ocean - Coasts of Eastern Africa, India, Asia, and Northern Australia
What is being done to help? A treaty was passed to stop commercial trade Illegal to harass, hunt, capture, or kill Manatee Recovery Plan Save the Manatee Club Florida has fines of $1000 and prison time (up to 60 days); Federal conviction has fines of $50,000 and 1 year jail time
Manatee Pictures