鲟鱼

The effects of 20~100 mg/L MS-222,Tricaine Methanesulphonat,were tested at water temperature 15~25 ℃ on two species of sturgeons,Acipenser sinensis and A.schrenckii.

以20~100 mg/L的MS-222在水温15~25℃条件下对中华鲟和施氏鲟(A.schrenckii)的麻醉效果进行试验，中华鲟或施氏鲟分别达到不同程度的麻醉状态甚至出现死亡。30~40 mg/L的MS-222具有较好的麻醉效果，鱼的活动量明显下降，可保持镇静并维持身体平衡和正常体位，麻醉48 h后，在清水中数分钟内可恢复正常游动状态，适合于长途运输。50~100 mg/L的MS-222对中华鲟和施氏鲟具有较强的麻醉作用，适合于进行短时间的操作，如捉拿、称重、测量、外科手术、体外标记等。

Acute toxicities of phenol,Cu2+,nitrite and total ammonia to juvenile Chinese sturgeon Acipenser sinensis fingerlings were determined in static bioassays.

研究了苯酚、Cu2+、亚硝酸盐和总氨氮对8~12日龄中华鲟 Acipenser sinensis稚鱼的急性毒性，中华鲟稚鱼的全长为(2.36±0.10)cm，平均体重为0.07 g。

A fish of the family Polyodontidae, having a long paddle-shaped snout, especially Polyodon spathula of the Mississippi River basin.

白鲟，匙吻鲟匙吻鲟科的一种鱼，有长的桨状吸盘，特别是匙吻鲟密西西比河流域的这种鱼

The sturgeons were reared under ambient photoperiod which approximately is 12h light/ 12h dark.

鲟鱼放在12小时光照12小时黑暗的光周期处理。

A few thousand years ago, the Yangtze was the Amazon of the East, rich in wildlife like alligators, elephants, giant sturgeons and an unusually large salamander.

几千年前，长江堪称东方的亚马逊，诸如扬子鳄、大象、鲟鱼及大蜥蜴等野生动物十分丰富。

The restaurant, which under different names has been awarded a Michelin star 19 years in succession, also receives five skeletons, and was marked down for offering Sevruga caviar from the endangered stellate sturgeon.

在餐厅，分属不同的名称已经获得了连续19年米其林星，也受到5骨架，并标记为提供从濒危星状Sevruga鱼子酱的鲟鱼了。

Cocoon in Regent Street has taken bluefin tuna off its menu but still serves wild Sevruga caviar from endangered sturgeon.

在摄政街茧起飞蓝鳍金枪鱼的菜单，但仍符合濒危野生Sevruga鱼子酱的鲟鱼。

Numerous unique species have been driven to the brink of extinction in the river, including the white-fin dolphin and Yangtze river sturgeon.

长江许多特有生物面临绝种危机，包括中华白海豚和中华鲟鱼。

In Xinjiang, the Talimu River has shrunk by a third causing complete water depletion in the lower reaches. Bones of wild animals who had depended on the "dessert source of life" littered the erstwhile lush river banks. In the Great Northern Wilderness in Heilongjiang, Siberian tigers, bears, river deer, red-crowned cranes, swans and sturgeons disappeared. Similar situation also happened in Xishuangbanna, China's biggest rainforest. Asiatic elephants were driven to the neighboring Burma, Laos and Thailand due to extensive land reclamation.

在新疆，塔里木河缩短了三分之一，导致下游水量的全面损耗，曾依靠&沙漠水源&生存的野生动物纷纷死亡，尸体散落在曾经郁郁葱葱的班克斯河边，在黑龙江的北大荒，西伯利亚虎、熊、驯鹿，丹顶鹤，天鹅和鲟鱼踪影全无；相似的情况也发生在西双版纳，中国最大的雨林，巨大的垦荒范围将亚洲象驱赶到邻国缅甸，老挝和泰国。

Offers guided trips for salmon, white sturgeon, steelhead, trout, and dolly varden and accommodations.

提供导行程，鲑鱼，白鲟鱼，鳟，鳟鱼，鲑小车和住宿。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。