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Manatee counts are highly variable without an accurate way to estimate numbers. In Florida in 1996, a winter survey found 2,639 manatees; in 1997, a January survey found 2,229, and a February survey found 1,706. [18] A statewide synoptic survey in January 2010 found 5,067 manatees living in Florida, the highest number recorded to that time. [41]
Studies have shown that around 14% of manatees since 1978 have been found with debris in their GI tract which mainly consisted of fishing lines. Some manatees have also been shown to have missing or scared fins due to their entanglement in these fishing lines. [4] Some manatee deaths are the result of collisions with boats.
West Indian manatee. The West Indian manatee (Trichechus manatus), also known as the North American manatee, is a large, aquatic mammal native to warm coastal areas of the Caribbean, from the Eastern United States to northern Brazil. Living alone or in herds, it feeds on underwater plants and uses its whiskers to navigate.
In 2021 and 2022, Florida’s manatee population took a hit as thousands of manatees died of starvation. ... Seventy-two manatee deaths so far in 2023 were linked to watercraft.
A litany of horror stories that emerged from the state were "bound to happen," Bill Booker, owner of Roller Funeral Homes and member of the Arkansas State Board of Embalmers and Funeral Directors ...
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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.
Sirenia is the order of placental mammals which comprises modern "sea cows" (manatees and the Dugong) and their extinct relatives. They are the only extant herbivorous marine mammals and the only group of herbivorous mammals to have become completely aquatic. Sirenians are thought to have a 50-million-year-old fossil record (early Eocene -recent).