The discovery of intensive population of finless porpoise in the Dongting Lake area sounded ecological alarm diesel generator | diesel generator price / 2012-04-18
"Those darling little cute people, the original body has dark yellow skin is yellow, can not bear to witness." Fishermen involved in the salvage of the finless porpoise Zhang Jianshe told the China News Service reporter. Seeing these dead finless porpoises, he sadly sobbed several times.
This is a sad set of data: From March 3 to April 18, for a short period of 40 days, 12 finless porpoises were found in the Dongting Lake area of ​​Hunan Province.
The death of finless porpoise was not the first in the Dongting Lake area. However, unlike before, this time, the number of people and the time span are very rare in the ecological history of the Yangtze River Valley.
The old fisherman, who had fished for years on the lake in Dongting Lake, regards the finless porpoise as the “God of Lakes.†The finless porpoise will jump back and forth on the vast lake every time it changes or when the wind blows on the lake. Through this special signal, fishermen can safely return at their choice and wait for the wind to go out of the lake again.
Today, these "God of the Lakes" are unable to protect themselves. In the past 20 years, the population of the Yangtze finless porpoise has rapidly declined. Scientists are even worried that the Yangtze finless porpoise will return to the “extinct extinction†of the dolphin and become the next extinct freshwater dolphins. In 2007, when the dolphin was declared functionally extinct, the finless porpoise became the only mammal in the Yangtze River.
It is understood that most of the deaths of the finless porpoise are between 1.3 meters and 1.63 meters in length, with the majority of females.
Wang Kexiong, an associate researcher at the Wuhan Institute of Hydrobiology, Chinese Academy of Sciences, said that these dead finless porpoises are about 4 to 6 years old, which is equivalent to people's ages of 20 to 30 years old. They are young people at a very good time. This massive finless porpoise death will have a fatal blow to the family of finless porpoise living in Dongting Lake.
The finless porpoise is a national second-class protected animal. It mainly lives in the mainstream of the Yangtze River and the waters of Dongting Lake and Poyang Lake. It has survived about 25 million years ago and is called the “water giant pandaâ€. According to new statistics from relevant departments, the number of finless porpoise in Dongting Lake is only 85, and the number of finless porpoise in Poyang Lake is between 300 and 400. The number of finless porpoises is lower than that of the "national treasures" giant pandas.
A number of Dongting Lake fishermen analyzed the causes of the finless porpoise deaths, saying that the deaths of finless porpoises are closely related to illegal fishing, water pollution, and disorderly sand mining.
Li Tianhuai, Secretary of the Party Committee and Director of the Fisheries Bureau of Yueyang County, Hunan Province, who is responsible for handling the matter, also expressed the same opinion: Currently, the survival of the finless porpoise is faced with huge threats from humanity - devastating effects such as electro-fishing, "ghosts" and dwarfs. Illegal fishing has caused a serious shortage of finless porpoise food and caused fish depletion. In addition, the deterioration of the water quality of the mainstream of the Yangtze River and the Dongting Lake, coupled with disorderly sand mining activities, and the spraying of pesticides and snails on the Dongting Lake, threatened the living environment of the finless porpoise. This was also the cause of the current finless porpoise. The cause of death.
After the finless porpoise population died, on the afternoon of the 15th, the Animal Husbandry and Fisheries Bureau of Yueyang City, Hunan Province held an emergency meeting of the Fisheries Bureau. At the meeting, the local government departments set up a temporary working group, hoping to quickly identify the cause of abnormal finless porpoise deaths, and to develop protection measures for finless porpoise.
On the afternoon of April 16, two experts from the Institute of Hydrobiology, Chinese Academy of Sciences, rushed to Yueyang from Wuhan and transported two frozen finless porpoises to Wuhan, hoping to find the cause of death of the finless porpo through anatomy. On April 17, the experts said after anatomy that according to the current situation, the finless porpoise is more likely to be poisoned or electrocuted. However, experts say that the death of the finless dolphins in the Dongting Lake is still just a deduction, and the final conclusion remains to be analyzed in the near future on autopsy data, as well as in-depth examination of relevant specimens.
A dolphin expert in China told the reporter that it is necessary to clarify the origin of the incident and investigate the fact that the intensive population of finless porpoises has died. The rescue of the population of the finless porpoise in Dongting Lake is a matter of no delay.
Regardless of the final test result, one fact is that the finless porpoise death event once again sounded the alarm for Dongting Lake Ecology. (Finish)
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