Journal of the Japan Veterinary Medical Association
Online ISSN : 2186-0211
Print ISSN : 0446-6454
ISSN-L : 0446-6454
The Japanese Society of Veterinary Public Health
Goiter-Like Changes in the Thyroid Gland of Mass Stranded Striped Dolphins (Stenella coeruleoalba)
Manami MAKARAYuko TAJIMATadasu K YAMADATomohiko ISOBEShin TAKAHASHIShinsuke TANABEAkinori SHIMADA
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2009 Volume 62 Issue 2 Pages 155-160

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Abstract

Seven striped dolphins (Stenella coeruleoalba) were found dead, stranded on Gogo island, Ehime, Japan in March 2003. A post-mortem examination of six of the seven adult dolphins demonstrated severe congestive edema of the lung. No signs of bruising or other trauma were observed. The possible causes of the mass stranding were not identified. Cystic enlargement of the follicles of the thyroid gland with an accumulation of abundant colloid were observed in two animals : these findings were consistent with goiter. An analysis of organohalogens in blubber showed a similar pattern of accumulation of organohalogens in marine mammals in Japan. In addition,high levels of organohalogens were detected.

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© 2009 Japan Veterinary Medical Association
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