鱘(xun)(xun)(xun)形目（Acipenseriformes）所(suo)有物(wu)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)均已列(lie)入(ru)CITES保(bao)護物(wu)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)名錄(lu)，其(qi)中(zhong)(zhong)短(duan)吻鱘(xun)(xun)(xun)（Acipenserbrevirostrum）和大西洋鱘(xun)(xun)(xun)（Acipensersturio）2種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)為(wei)附錄(lu)I物(wu)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，其(qi)他25種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)均為(wei)附錄(lu)Ⅱ物(wu)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。IUCN瀕(bin)危(wei)物(wu)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)名錄(lu)¨叫也已將鱘(xun)(xun)(xun)形目中(zhong)(zhong)19種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)列(lie)為(wei)瀕(bin)危(wei)物(wu)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，其(qi)中(zhong)(zhong)17種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)為(wei)極(ji)危(wei)等(deng)級，2種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)為(wei)瀕(bin)危(wei)等(deng)級。我(wo)(wo)(wo)(wo)國(guo)(guo)是(shi)鱘(xun)(xun)(xun)魚(yu)(yu)主要分(fen)(fen)布(bu)國(guo)(guo)，境(jing)內(nei)共(gong)有鱘(xun)(xun)(xun)魚(yu)(yu)2科(ke)3屬(shu)8種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。中(zhong)(zhong)華鱘(xun)(xun)(xun)（Acipensersinensis）是(shi)我(wo)(wo)(wo)(wo)國(guo)(guo)特有種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，分(fen)(fen)布(bu)在長(chang)江(jiang)(jiang)和珠江(jiang)(jiang)水(shui)系，為(wei)我(wo)(wo)(wo)(wo)國(guo)(guo)一(yi)級保(bao)護物(wu)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，由(you)于水(shui)工(gong)設施修建阻隔其(qi)洄游通道，導致野生中(zhong)(zhong)華鱘(xun)(xun)(xun)資源逐(zhu)年(nian)下降；史氏鱘(xun)(xun)(xun)（Acipenserschrenckii）和達氏鰉（Husodauricus）分(fen)(fen)布(bu)在我(wo)(wo)(wo)(wo)國(guo)(guo)黑龍(long)江(jiang)(jiang)水(shui)系，由(you)于自然環境(jing)改(gai)變(bian)和過(guo)度捕撈等(deng)原因(yin)，這2種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)鱘(xun)(xun)(xun)魚(yu)(yu)資源也呈現(xian)減少趨勢，列(lie)入(ru)我(wo)(wo)(wo)(wo)國(guo)(guo)二級保(bao)護名錄(lu)。我(wo)(wo)(wo)(wo)國(guo)(guo)野生鱘(xun)(xun)(xun)魚(yu)(yu)資源現(xian)狀(zhuang)令人擔憂，急(ji)需加強資源保(bao)護。

全球(qiu)的(de)(de)(de)(de)27種(zhong)鱘魚中，有23種(zhong)瀕(bin)臨滅(mie)絕(jue)，17種(zhong)被世界自然保護聯盟(meng)（IUCN）列為極度瀕(bin)危，代表著以鱘魚為旗(qi)艦物種(zhong)的(de)(de)(de)(de)淡水生(sheng)態(tai)(tai)系(xi)統(tong)在衰(shuai)退。“這(zhe)也在我們(men)發布的(de)(de)(de)(de)地(di)球(qiu)生(sheng)命力指(zhi)數報告中得到(dao)印證，2018年的(de)(de)(de)(de)報告顯示(shi)：淡水生(sheng)態(tai)(tai)系(xi)統(tong)的(de)(de)(de)(de)生(sheng)命力指(zhi)數下(xia)降(jiang)82%，是(shi)所有生(sheng)態(tai)(tai)系(xi)統(tong)中下(xia)降(jiang)速率最快的(de)(de)(de)(de)。

長江(jiang)鱘(xun)，又名(ming)達(da)氏(shi)鱘(xun)，為(wei)淡(dan)水定居性(xing)魚類(lei)(lei)，是我(wo)國長江(jiang)獨有的(de)珍稀(xi)野生(sheng)動(dong)物。長江(jiang)鱘(xun)出生(sheng)和成長都在長江(jiang)上游(you)(you)至金沙江(jiang)下游(you)(you)江(jiang)段。受人類(lei)(lei)活(huo)動(dong)影響，從20世紀后期開始，長江(jiang)鱘(xun)自然種群(qun)資源(yuan)規模(mo)急劇縮小，至2000年左右自然繁殖(zhi)活(huo)動(dong)停止，自然種群(qun)已無法自我(wo)維(wei)持，面臨野外絕跡(ji)風險。2010年，世界自然保護聯盟(meng)（IUCN）將其升級為(wei)極危(wei)級（GR）保護物種。