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"Sadchatheeswaran, Sa"

 
 
 Sadchatheeswaran, Saachi; Belanger, Mike; Wittnich, Carin (detail)
   
2012
A comparison of published brevetoxin tissue levels in West Indian manatee, bottlenose dolphin and double-crested cormorants in southwest Florida.
Journal of Marine Animals and their Ecology 5(1): 20-27. 1 tab. 5 figs. June 2012.
–ABSTRACT: This study compares reported brevetoxin concentrations in liver, kidney, brain, lung and stomach contents of West Indian manatees (Trichechus manatus latriostris), bottlenose dolphins (Tursiops truncatus), and double-crested cormorants (Phalacrocorax auritus) that died due to exposure to brevetoxin in southwest Florida, to identify differing responses to brevetoxicosis. Liver, kidney, and brain of both manatee and cormorants had significantly higher levels of brevetoxin compared to dolphins, with manatee liver concentrations significantly higher compared to cormorants. Dolphins had significantly higher loads in their stomach contents compared to both manatee and cormorants, which were also significantly different from each other. Lung concentrations of brevetoxin were similar in all species. Manatee and cormorants had similar responses to brevetoxin, while dolphins appeared to be more vulnerable. Ingestion appears as the primary route of brevetoxin exposure, but inhalation is possible in all three species.
Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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