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Chinese sturgeon
The Chinese sturgeon (''Acipenser sinensis''; ) is a critically endangered member of the family Acipenseridae in the order Acipenseriformes. Historically, this anadromous fish was found in China, Japan, and the Korean Peninsula, but it has been extirpated from most regions due to habitat loss and overfishing.〔
It is strictly protected by the Chinese government, named a "national treasure" much like its mammalian counterpart, the giant panda. China has several conservation programmes, including reserves specifically aimed at this species and restocking through release of juveniles in the Yangtze River.〔
== Physical appearance ==
Sturgeon are comparatively basal species of fish, whose earliest fossils date back to the Cretaceous period.〔 They are best known members of the bony fish taxon Chondrostei, a group of bony fishes that have cartilaginous skeletons superficially similar to the skeletons seen in the unrelated chondrichthyan fishes.
Chinese sturgeon can range between in body length, and weigh on average. It is believed an adult sturgeon can reach up to in length, and weigh over , ranking among the largest sturgeon in the world. Its head is acuminate, with the mouth under its jaw.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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