BP and the Perilous Voyage of Bama the Manatee

By Nikolas Kozloff:

To the degree that Americans are paying attention to the environmental plight of marine wildlife in the Gulf of Mexico, they may focus most upon dolphins and whales.

However, the U.S. public is much less familiar with another marine mammal, the manatee, which could also be placed in jeopardy as a result of the BP oil spill. One of the most outlandish creatures on the planet, the shy and retiring manatee, which gets its name from an American Indian word meaning "Lady of the Water," is one of my favorite animals.

First described as a cross between a seal and hippo, the manatee has a wonderfully round body, mostly black skin the texture of vinyl, a bright pink belly, a diamond-shaped tail and a cleft lip. Manatees belong to the biological order Sirenia which includes dugongs and Steller's Sea Cow, the latter hunted to extinction in the Bering Sea during the 1700s.

"Sluggish, squinty-eyed and bewhiskered," notes the New York Times, the manatee "is more likely to have its rotund bulk compared to a sweet potato." Living life in the slow lane, manatees are fond of doing nothing much at all. When they're not eating, they take frequent naps. An exclusive vegetarian that feeds on water lettuce and hyacinth, the animal eats 10 percent of its body weight in a single day. Not surprisingly manatees are robust -- they can grow up to ten feet long and weigh nearly a ton.

In the wake of BP's disaster, the manatee could be in for a rough patch. Indeed, oil could ultimately result in death or significant injury in the event that manatees are exposed to petroleum.

The docile sea creature, which can be found along the coasts of Louisiana, Mississippi, Alabama, and Florida, could ingest oil-damaged sea grass beds and other vegetation. If the marine mammals come into contact with surface oil, this could irritate their eyes and mucous membranes while clogging the animals' nostrils.

The manatee is already endangered and the BP spill poses yet a further problem for the animal. Because manatees need to surface to breathe air, they could become exposed to oil on the water. If they ingest oil, manatees could develop lesions and erosions of the esophagus, liver toxicity and kidney problems. Ingestion could kill the organisms in manatees' stomachs which aid in the digestion of sea grasses consumed by the animals.

Of particular concern is the plight of Bama, the first Alabama manatee to be tagged by scientists. From mid-May to mid-November, Bama and at least a dozen other manatees call Alabama home. Currently, Bama is migrating back home to Alabama from Florida. Though manatees don't tend to travel in pods or herds, it's likely that Bama represents the advance guard of manatees making their way back towards the northern Gulf.

In murky waters, the manatees' acute sense of touch and vibrissae, located on the face but also all over the body, come in handy. These bristly vibrissae serve to transmit information to the brain via nerve fibers. Though other animals such as dogs have vibrissae, they don't have them in such large numbers and typically only on the face.

"For now," notes the Times, "the question of how intertwined the sensory abilities of manatees might be remains unanswered. Yet even what is known reveals a degree of complexity that argues against labeling them as sweet but dumb -- peaceable simpletons."

Long derided as stupid by humans, the manatee will now have to steer clear of man's environmental folly in the Gulf. Though Bama and other manatees have poor vision, perhaps their other extra sensory abilities will alert them to danger. It may be the only tool they have at their disposal as the animals seek to survive the despoliation of their habitat.

http://www.nikolaskozloff.com/blog.htm

http://www.huffingtonpost.com/nikolas-kozloff/bp-and-the-perilous-voyag_b_584267...