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Stomach cancer likely cause of dolphin death

Friday, September 12, 2008

Stomach cancer likely cause of dolphin death


A tumour the size of a mandarin is the most likely cause of death of Kelly, Marineland’s last dolphin.

A team from the University’s Veterinary Teaching Hospital completed a post-mortem examination of the 38-year-old dolphin this afternoon. Kelly had been unwell for several days and died on Wednesday. She had been at Napier’s Marineland since 1974.

Wildlife health centre director Dr Brett Gartrell says the main findings were indicators of Kelly’s old age.

“But we also found what we think is cancer at the base of her stomach – the mass is being tested and we will know for sure in a couple of weeks.

“What we do know is that she was in really good body condition, and that she had no parasites or long-standing disease other than the cancer.”

The 95kg common dolphin’s body is at the vet teaching facility on the Palmerston North campus.

“Her body being used by researchers studying wild dolphin,” Dr Gartrell says, “so there will be some good to come from her death much like the way a human body left to medical research can contribute. Kelly will go on and provide valuable information for comparing to the wild dolphins.”

Staff at the University’s Institute for Veterinary Animal and Biomedical Sciences undertake post mortem examinations many times each year, on wildlife ranging from birds to marine mammals.

Dr Gartrell was assisted by Masters student Jodi Salinsky and marine biologist Karen Stockin. Ms Stockin is a research officer and lecturer in the Coastal Marine Research Group at Massey’s Institute of Natural Resources in Auckland. Ms Stockin’s just-completed doctoral research on the New Zealand common dolphin provides the first substantial scientific data on the species. Ms Stockin says the species has been overlooked by researchers as a result of false assumptions based on the dolphin’s name. Despite being labelled common, it is in fact not nearly as common in terms of its abundance as some other species of dolphin.

Caption: Marine biology researcher Karen Stockin was one of a team from the University to undertake a post-mortem examination of Kelly this morning.

ENDS

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