一、苏联过鱼建筑物简况因河流建坝截断了鱼类产卵洄游通道。苏联为了救鱼,全境共建有20座过鱼建筑物(其中鱼梯9座、鱼闸6座、升鱼机5座)。而以鲟科鱼类为设计救护对象之一的过鱼建筑物不下11座(表1),现将其中过 First, the Soviet Union over fish buildings due to river construction dammed fish spawning migration channel. In order to save the fish, the Soviet Union built a total of 20 over-fishing buildings (including 9 fish-landing stairs, 6 fish-gates and 5 lifts). Sturgeon fish as the object of the design and rescue objects over one fish building no less than 11 (Table 1), which will have been