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    Volume 4 Issue 21 | Archive Index

    A MYSTERIOUS DISEASE DRY-DOCKS TWO SEA TURTLE (LETHARGIC LOGGERHEAD EPIZOOTIC INCIDENT)

    A Mysterious Disease Dry-Docks Two Sea Turtle (Lethargic Loggerhead
    Epizootic Incident) 
    Moss, nearly 30 years old and 200 pounds, lies sprawled on a slab of foam.
    She can barely move -- the toxins pumping through her body have all but
    paralyzed her. So the sea turtle spends her afternoons staring through the
    open doors of an animal lab -- at the ocean. Occasionally, a lab worker
    covers her with oil, so her skin doesn't dry out. A newly discovered
    disease has dry-docked Moss and another sea turtle named Garden, who are
    now being cared for by doctors and workers at the Miami Seaquarium. Known
    by researchers as the lethargic loggerhead epizootic incident, the disease
    has affected at least 60 loggerhead sea turtles along South Florida's
    coastline since the winter of 2000.Most of the turtles affected have been
    females, and all have been loggerhead turtles, known for their unusually
    large heads. Researchers are not yet sure what is causing the disease. 
    Dr. Maya Menchaca, the staff veterinarian at the Seaquarium, said
    researchers have found unidentified toxins in the turtles that cripple
    their nervous systems and eventually lead to paralysis. But they don't know
    where the toxins are coming from. Researchers are studying whether the
    poisons originate in a new species of jellyfish, which the turtles eat, or
    are from parasites, Menchaca said. ''We just haven't yet pinpointed where
    the toxins are coming from,'' Menchaca said. ``It's sad because we don't
    know how many are out there and suffering from this. ''Researchers became
    aware of the disease three years ago when 49 loggerhead turtles were found
    suffering from the same symptoms, said Allen Foley, a wildlife biologist
    with the Florida Fish and Wildlife Conservation Commission. Most of those
    were found off the Keys, barely able to swim. Some had pneumonia from all
    the water that had pooled in their lungs. Unable to lift their necks above
    the waves, seawater poured in through their mouths with each breath. .Only
    five of those 49 turtles survived. Later in 2001, between five and seven
    sea turtles were discovered ill, but the pace of the disease has since
    slowed to about one to three known cases a year. Although the staff at the
    Seaquarium doesn't know what is causing the disease, workers have been able
    to slow the mortality rate. Since 2001, the Key Biscayne-based lab has been
    able to save half of the 10 turtles it has treated for the disease. Park
    rangers found Garden, who is between 10 and 15 years old and weighs about
    120 pounds, in Crandon Park on Jan. 3.Moss was found Tuesday at Biscayne
    National Park in South Miami-Dade County. 
    Once a day the two turtles are given antibiotics and fluids through an
    intravenous tube in their neck, to flush the toxins out of their
    system.After about a month, when they hopefully will be able to move more,
    the turtles will be placed in shallow water and fed by hand -- crabs,
    lobsters -- instead of through an IV.''Their jaw muscles are usually the
    last to recover and so they can observe the food, but they can't grab it,''
    Menchaca said.`` We open their mouths and put the food inside.'' Complete
    recovery takes between four and six months, so the two turtles still have a
    long road ahead of them, Menchaca, said. After they recover, staff members
    plan to release them back into the ocean. ''We always think positively,''
    Menchaca said. ``Every day they move a little bit more and get a little bit
    better.''
    Posted 2004-01-20