Subject: MANATEE MORTALITY STATISTICS

Mike Williamson (williams@whale.wheelock.edu)
Sat, 30 Aug 1997 14:26:04 -0400 

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http://www.objectlinks.com/manatee/mortal1.htm

>                      MANATEE MORTALITY STATISTICS
> 
> Total Number of U.S. Verified Deaths (including Puerto Rico) 1979-1996
> 
> [Image]
> 
> Natural Causes Take Toll On Manatee Population
> 
> In 1996, red tide was suspected in the deaths of at least 151 manatees
> on Florida's southwest coast, or about 12% of the entire west coast
> population. In 1982, another outbreak of red tide occurred in
> southwest Florida and was believed to have caused the deaths of 37
> manatee.
> 
> In the winter of 1989-90, at least 45 manatee deaths occurred from
> cold stress because of a prolonged cold front in December. During that
> time, temperatures in Florida's coastal waters dipped into the 40 and
> 50 degree Fahrenheit range.
> 
>              CLICK HERE FOR 1997 MANATEE MORTALITY UPDATE
>               FROM THE FLORIDA MARINE RESEARCH INSTITUTE
> 
> Scientists break down the causes of manatee deaths into six different
> categories:
> * Watercraft collisions
> * Flood gate or canal lock (crushed and/or drowned)
> * Other human-related (deaths caused from monofilament line, litter,
> poaching, vandalism,
> culverts or other human-made structures)
> * Perinatal (dependent calves under 4.9 feet [150 cm])
> * Other natural (mortalities caused by natural circumstances such as
> cold stress or disease)
> * Undetermined (the manatee is too badly decomposed to determine cause
> of death,
> the necropsy finding is inclusive, or the manatee carcass was reported
> and verified, but not recovered)
> 
> [Image]
> 
>                                [Image]
>                       RETURN TO THE SMC HOME PAGE
>           --------------------------------------------------
> 
>                  Web Services provided by ObjectLinks
> 
> "Save the Manatee" and "Adopt-A-Manatee" are registered trademarks of
> Save the Manatee Club, Inc., a nonprofit 501(c)(3) organization,
> registered in the state of Florida. All rights reserved! Any questions
> or requests for information should be referred to manatee@america.com

-- 
                        
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
              J. Michael Williamson
              Principal Investigator
WhaleNet <http://whale.wheelock.edu>
         Associate Professor-Science
 Wheelock College, 200 The Riverway, Boston, MA 02215
         voice: 617.734.5200, ext. 256
     fax:  617.734.8666, or 508.468.0073

"Wrinkles only go where smiles have been"
                    Jimmy Buffett
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Manatee Mortality Statistics

MANATEE MORTALITY STATISTICS

Total Number of U.S. Verified Deaths (including Puerto Rico) 1979-1996

Natural Causes Take Toll On Manatee Population

In 1996, red tide was suspected in the deaths of at least 151 manatees on Florida's southwest coast, or about 12% of the entire west coast population. In 1982, another outbreak of red tide occurred in southwest Florida and was believed to have caused the deaths of 37 manatee.

In the winter of 1989-90, at least 45 manatee deaths occurred from cold stress because of a prolonged cold front in December. During that time, temperatures in Florida's coastal waters dipped into the 40 and 50 degree Fahrenheit range.

CLICK HERE FOR 1997 MANATEE MORTALITY UPDATE
FROM THE FLORIDA MARINE RESEARCH INSTITUTE


Scientists break down the causes of manatee deaths into six different categories:
  • Watercraft collisions
  • Flood gate or canal lock (crushed and/or drowned)
  • Other human-related (deaths caused from monofilament line, litter, poaching, vandalism,
    culverts or other human-made structures)
  • Perinatal (dependent calves under 4.9 feet [150 cm])
  • Other natural (mortalities caused by natural circumstances such as cold stress or disease)
  • Undetermined (the manatee is too badly decomposed to determine cause of death,
    the necropsy finding is inclusive, or the manatee carcass was reported and verified, but not recovered)



    RETURN TO THE SMC HOME PAGE

    Web Services provided by ObjectLinks


    "Save the Manatee" and "Adopt-A-Manatee" are registered trademarks of Save the Manatee Club, Inc., a nonprofit 501(c)(3) organization, registered in the state of Florida. All rights reserved! Any questions or requests for information should be referred to manatee@america.com 
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