First indication of gas embolism in a harbour porpoise (Phocoena phocoena) from German waters

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• 作者：U. Siebert (1)
  P. D. Jepson (2)
  P. Wohlsein (3)
  
• 关键词：Harbour porpoise ; Phocoena phocoena ; German waters ; Liver ; Gas embolism
• 刊名：European Journal of Wildlife Research
• 出版年：2013
• 出版时间：June 2013
• 年：2013
• 卷：59
• 期：3
• 页码：441-444
• 全文大小：297KB
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  18. Wright AJ, Maar M, Mohn C, Nabe-Nielsen J, Siebert U, Fast-Jensen L Baag酶e HJ, Teilmann J (2013). Possible causes of a harbour porpoise mass stranding in Danish waters in 2005. PlosOne.
  
• 作者单位：U. Siebert (1)
  P. D. Jepson (2)
  P. Wohlsein (3)
  
  1. Institute for Terrestrial and Aquatic Wildlife Research (ITAW), University of Veterinary Medicine Hannover, Foundation, Werftstr. 6, 25761, B眉sum, Germany
  2. Institute of Zoology, Zoological Society of London, Regent鈥檚 Park, London, NW1 4RY, UK
  3. Department of Pathology, University of Veterinary Medicine Hannover, Foundation, B眉nteweg 17, 30559, Hannover, Germany
  
• ISSN：1439-0574

文摘

In the last decade, a number of cetacean strandings have gas embolic pathology analogous to decompression sickness in man and experimental animals. Acute gas and fat embolic lesions have also been found in mass-stranded beaked whales causally linked to high-intensity anthropogenic mid-frequency sonar activities. Sporadic chronic gas embolic lesions have also been described. This communication describes a first case of numerous gas-filled fibrous cavities in the markedly enlarged liver of a dead adult male harbour porpoise stranded at the North Sea coast of Schleswig-Holstein, Germany. Additional pathological findings consisted of chronic parasitic granulomatous cholangiohepatitis, hepatic vein thrombosis, parasitic infestations of the bronchial tree and pulmonary blood vessels associated with bronchopneumonia and severe parasitic burden in both ear sinuses. The hepatic cavernous lesions are similar to those described in chronic gas bubble disease in other cetaceans, most likely resulting from decompression-related tissue supersaturation with nitrogen.