为了促使天然水域中鲟科鱼类的产卵,苏修在伏尔加河建造了三个试验性质的砾石人工产卵场其水流保证在1.0～1.5米/秒,建造产卵场的面积大小决定于产卵群体的组成和数量以及河床的条件,但不宜小于3～5公顷。产卵场底质采用投放中等大小的石块(5—10厘米)混合5～10%的大块碎石,厚度大致在20～30厘米间。这样的人工产卵场就能使鲟科鱼类进入产卵。 In order to promote the sturgeon fish spawning in natural waters, Su Xiu constructed three experimental gravel artificial spawning grounds on the Volga River with water flow rates of 1.0-1.5 m / s. The size of the spawning grounds was determined by The composition and number of spawning groups and the conditions of the riverbed, but not less than 3 to 5 hectares. Spawning ground sediment using medium-sized stones (5-10 cm) mixed with 5 to 10% of the large gravel, the thickness of about 20 to 30 cm. Such artificial spawning grounds enable sturgeon fish to spawn.