The Yangtze Freshwater Dolphin Expedition 2006 (Chinese: 长江淡水豚类考察) was a six-week search expedition undertaken in November and December 2006 in central China in an attempt to locate continued proof of the existence of the endangered baiji Yangtze dolphin (Chinese river dolphin). It was carried out under the direction of the Wuhan Institute of Hydrobiology and the Swiss-based baiji.org Foundation and was notable for drawing to an end without any positive results. Thus it was announced that the species was functionally extinct.
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| - Yangtze Freshwater Dolphin Expedition 2006 (en)
- 2006长江淡水豚类考察 (zh)
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| - 长江淡水豚类考察是2006年末在中国长江中下游进行的一次科学考察活动,目的是为了准确评估濒危的白鱀豚和长江江豚的种群现状以及它们的栖息地情况。考察活动从2006年11月6日开始,参加考察队的机构有中国科学院水生生物研究所、瑞士等机构,队员来自6个国家,共30多人。考察队从湖北省的宜昌至上海的1700公里长江干流,往返航行了3400公里,耗时39天,于12月13日结束。这次考察最终没能发现白鱀豚,宣布其功能性灭绝。另外还发现长江江豚的数量也只相当于1991年种群数量的一半,进一步证实江豚数量大幅减少。 (zh)
- The Yangtze Freshwater Dolphin Expedition 2006 (Chinese: 长江淡水豚类考察) was a six-week search expedition undertaken in November and December 2006 in central China in an attempt to locate continued proof of the existence of the endangered baiji Yangtze dolphin (Chinese river dolphin). It was carried out under the direction of the Wuhan Institute of Hydrobiology and the Swiss-based baiji.org Foundation and was notable for drawing to an end without any positive results. Thus it was announced that the species was functionally extinct. (en)
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| - The Yangtze Freshwater Dolphin Expedition 2006 (Chinese: 长江淡水豚类考察) was a six-week search expedition undertaken in November and December 2006 in central China in an attempt to locate continued proof of the existence of the endangered baiji Yangtze dolphin (Chinese river dolphin). It was carried out under the direction of the Wuhan Institute of Hydrobiology and the Swiss-based baiji.org Foundation and was notable for drawing to an end without any positive results. Thus it was announced that the species was functionally extinct. The scientists travelled on two research vessels almost 3500 kilometres from Yichang to the nearby Three Gorges Dam, onto Shanghai and into the Yangtze Delta before retracing their path backwards. They used high-performance optical instruments and underwater microphones in an attempt to locate one of the dolphins. The head of the baiji.org Foundation and co-organizer of the expedition, August Pfluger was reported to have said "It is possible we may have missed one or two animals". However even if a small number were still alive, it is extremely unlikely they would be able to survive in the long-term. "It is a tragedy, a loss not only for China, but for the entire world" Pfluger said from his base in Wuhan. Others retain some hope for the species. Wang Limin, director of the World Wildlife Fund Wuhan office said, "The fact that the expedition didn't see any baiji dolphins during this expedition does not necessarily mean that the species is extinct or even 'effectively extinct', because it covered a considerable distance in a relatively short period of time... However, we are extremely concerned. The Yangtze is highly degraded, and we spotted dramatically fewer finless porpoises than we have in the past." The expedition was led by the Chinese Ministry of Agriculture and brought together experts from international institutes like the Swiss Federal Institute of Aquatic Science and Technology (Eawag), the National Oceanic and Atmospheric Administration (NOAA), the Hubbs-Seaworld Institute from San Diego and the Fisheries Research Agency in Japan. A report of the expedition was published online in the journal Biology Letters on August 7, 2007, in which the authors wrote: "We are forced to conclude that the baiji is now likely to be extinct, probably due to unsustainable by-catch in local fisheries..." [1] "Witness to Extinction: How We Failed To Save The Yangtze River Dolphin", an account of the 2006 survey by Samuel Turvey, one of the survey participants, was published by Oxford University Press in autumn 2008. This book investigated the baiji's probable extinction within the wider-scale context of how and why international efforts to conserve the species had failed, and whether conservation recovery programmes for other threatened species were likely to face similar potentially disastrous administrative hurdles. (en)
- 长江淡水豚类考察是2006年末在中国长江中下游进行的一次科学考察活动,目的是为了准确评估濒危的白鱀豚和长江江豚的种群现状以及它们的栖息地情况。考察活动从2006年11月6日开始,参加考察队的机构有中国科学院水生生物研究所、瑞士等机构,队员来自6个国家,共30多人。考察队从湖北省的宜昌至上海的1700公里长江干流,往返航行了3400公里,耗时39天,于12月13日结束。这次考察最终没能发现白鱀豚,宣布其功能性灭绝。另外还发现长江江豚的数量也只相当于1991年种群数量的一半,进一步证实江豚数量大幅减少。 (zh)
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