projectpowerplant.com

solonavi 14 December 2006 Endangered & Extinction, Habitat 1,642 views One Comment Print This Post  Email This Post

baiji.org
The Baiji Yangtze Dolphin is with all probability extinct.  On Wednesday, in the city of Wuhan in central China, a search expedition, under the direction of the Institute for Hydrobiology Wuhan and the Swiss-based  baiji.org Foundation, drew to a finish without any results.  During the six-week expedition scientists from six nations desperately searched the Yangtze in vain.

The scientists were travelling on two research vessels almost 3500 kilometers from Yichang nearby the Three Gorges Dam to Shanghai into the Yangtze Delta and back, using high-performance optical instruments and underwater microphones.

«It is possible we may have missed one or two animals», said August Pfluger, head of Swiss-based baiji.org Foundation and co-organizer of the expedition on Wednesday in Wuhan. Regardless, these animals would have no chance of survival in the river. «We have to accept the fact, that the Baiji is functionally extinct.. It is a tragedy, a loss not only for China, but for the entire world», said Pfluger in Wuhan.

:

The fate of the delicate dolphin is attributed to the destruction of their habitat, illegal fishing and collisions with ships. Regarded in China as the “goddess of the Yangtze”, the 20 million year old river dolphin was one of the world’s oldest species. The Baiji is the first large mammal brought to extinction as a result of human destruction to their natural habitat and ressources.

:

:

Alongside the search for the Baiji, the scientists surveyed also the population of the endemic Yangtze Finless Porpoise, and the total was less than 400. «The situation of the finless propoise is just like that of the baiji 20 years ago», sais Wang Ding, deputy director of the Institute of Hydrobiology Wuhan. «Their numbers are declining at an alarming rate. If we do not act soon they will become a second Baiji», said Wang Ding, deputy director of the Institute of Hydrobiology of the Chinese Academy of Science in Wuhan.

The decline of the Baiji and the critical situation of the finless porpoise appears to not be directly influenced by the water quality of the Yangtze. Within the framework of the Expedition, scientists from the Swiss Federal Institute of Aquatic Science and Technology did simultaneously investigate the chemical composition of the Yangtze river water and its particulate load. Scientists took both water and sediment samples from 30 different locations all along 1750 kilometers of the river. Although the Yangtze does have an altogether high degree of pollutant build-up, at this time, as Beat Mueller from Eawag pointed out, there are no indications of toxic pollutants in high concentrations.

:

Beside the Yangtze finless porpoise, there are four species of freshwater dolphins left in the world; three of them living in major freshater systems in Asia, all of them critically endangered and on IUCN’s Red List of Threatend Species. Since the UN declared 2005-2015 as the International Decade for Action «Water for Life» and the next year will be, according to United Nations Environment Programme UNEP, the Year of the Dolphin, August Pfluger believes, that the tragic fate of the baiji must be also seen as warning signal for the future: As the panda is China’s symbol of the destruction of forests, freshwater dolphins are strong symbols for the over-exploitation of Asia’s major freshwater ecosystems.

In an attempt to improve conservation of freshwater dolphins and their habitat,  baiji.org foundation launched a series of projects and will, alongside with the Ocean Park Foundation Hong Kong, organize in the coming year the «Workshop on the Conservation of Asian Freshwater Dolphins» in Hong Kong.

Baiji: The ultimate flagship for conserving the health and biodiversity of China’s Yangtze River