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Cause of death for 10 finless porpoises still elusive
By Li Qian |
April 19, 2012, Thursday
|
Online Edition
Online Edition
AUTOPSIES conducted on 12 finless porpoises found dead in Dongting Lake in central China's Hunan Province between March 3 and April 15 showed that one was killed by electric shock and another by a ship propeller.
But zoologists from the Chinese Academy of Sciences cannot say for sure what caused 10 other porpoises to die and believed they got stranded during the drought of the lake, which is a flood basin of the Yangtze River.
Finless porpoises are indigenous to the Yangtze River and are an endangered species under second-class protection.
Scientists said the 12 dead porpoises were flushed to Yueyang, a downstream city, after the lake swelled with rains, Changjiang Daily reported today.
However, Yueyang fishery authorities speculated that it was the large amounts of pesticides used in farms around the lake and chemical spills from a nearby factory that might have killed these porpoises.
They have collected water samples for tests but the result is not yet available to the public.
But zoologists from the Chinese Academy of Sciences cannot say for sure what caused 10 other porpoises to die and believed they got stranded during the drought of the lake, which is a flood basin of the Yangtze River.
Finless porpoises are indigenous to the Yangtze River and are an endangered species under second-class protection.
Scientists said the 12 dead porpoises were flushed to Yueyang, a downstream city, after the lake swelled with rains, Changjiang Daily reported today.
However, Yueyang fishery authorities speculated that it was the large amounts of pesticides used in farms around the lake and chemical spills from a nearby factory that might have killed these porpoises.
They have collected water samples for tests but the result is not yet available to the public.
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