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New whale shark study used metabolomics to help understand shark and ray health
Date:11/16/2012

ark and ray blood. Dr. Dove and six colleagues from Georgia Tech set out to significantly increase knowledge of whale shark biochemistry by examining the metabolite composition of all six whale sharks which have been cared for at Georgia Aquarium. By using metabolomics, the researchers were able to determine which chemical compounds were present in the shark blood, without knowing ahead of time what they are.

"It is vitally important for us to continue to learn how to best support the whale sharks in our care," said Dove, who, along with the GA Tech team, spent three years developing the research. "We began the study by asking ourselves, 'What should we be looking for in whale shark serum?' and 'What compounds in serum might best indicate the health status of whale sharks?'"

Not only did the study determine that metabolic profiles of unhealthy whale sharks were markedly different than those of healthy sharks in general and particularly the different levels of homarine, but the research team also identified more than 25 other compounds that differed in concentration based on the health of the individual.

Findings detailed in "Biomarkers of whale shark health: a metabolomic approach" will help scientists and veterinarians to better understand the biology of whale sharks in their natural setting, and by homology, the biology of other shark and ray species that may be similar. Further, data compiled in the research will provide a reference library about whale shark biochemistry that can be consulted in future studies and importantly, adds new knowledge that will be useful to those who care for sharks and rays on a daily basis.

"This sort of advanced research is only made possible through collaboration between aquarium scientists and experts at our partner universities," said Dr. Dove.


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Contact: Stephanie Johnson
sljohnson@georgiaaquarium.org
404-581-4230
Georgia Institute of Technology
Source:Eurekalert  

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