The International Union for Conservation of Nature and Natural Resources, or IUCN, has announced the extinction of the Chinese paddlefish, the wild Yangzte Sturgeon.
国际自然与自然资源保护联盟（IUCN）日前宣布，白鲟灭绝，长江鲟野外灭绝e2AU)K,UBi@JF64。
In its updated Red List of Threatened Species, the organization reviewed that world's remaining 26 sturgeon species are now at risk of extinction.
在其最新的濒危物种红色名录中，该组织重新评估了世界上剩余的26种鲟鱼物种，显示这些物种均面临灭绝风险bKTcu+,Mg+YX1smft。
The reassessment notes sturgeons have been overfished for their meat and caviar for centuries.
该重新评估指出，几个世纪以来，为了获取鲟鱼肉和鱼子酱，鲟鱼遭到过度捕捞[jm)-X8WnN@qo+[;6。
Dams affect all sturgeon species migrating to their breeding grounds, while rivers warming due to climate change further disrupts reproduction.
水利大坝影响了所有洄游至繁殖地的鲟鱼物种，而气候变化导致的河流变暖进一步破坏了鲟鱼的繁殖]5(8;M^,=8do。

The Chinese paddlefish is one of the world's largest freshwater fish species, with a length of up to seven meters.
白鲟是世界上最大的淡水鱼类，体长可达7米4H6_C#1f7N;x][n)|J。
It was listed as a first-class state protected animal in China in 1989.
1989年被列为中国国家一级保护动物2x*,1S;=~akJe@P8kz。
In 1996, it was first declared "critically endangered" by the IUCN.
1996年，国际自然与自然资源保护联盟首次宣布其为“极度濒危物种”zFVw_NngCj~。
Some experts say there is no image evidence of the species since 2009.
一些专家表示，自2009年以来，就没有该物种的影像证据了ke7jeYgaFru5。
It was last seen alive in 2003.
它最后一次被人类发现是在2003年dUNx0U*PvkI,IYB。