在对鳊鱼受江河径流新的生存条件影响的适应的研究工作表明:在洪峰发生时期水位下降的影响下,伏尔加河常常发生鳊鱼产卵,古比雪夫水库出现鳊鱼同类种群的初步分化,在产卵方面出现两种情况:第一种情况利用沿岸浅水区产卵,第二种情况多为开阔的深水区产卵。鳊鱼在第一种情况下,具有两行牙齿的鱼的出现率是不多的;而在第二种情况下,这样的鱼是很多的。在具有自己的水位和温度状 The research on adaptation of anchovy to the new living conditions of river runoff showed that under the influence of the declining water level at the peak of the flood season, the fish lay on the Volga River and the initial divergence of the same species in the Gobi Babu reservoir occurred , There are two cases of spawning: the first case uses the coastal shallow water spawning, the second case mostly open deep water spawning. Catfish In the first case, the incidence of fish with two rows of teeth is small; in the second case, there are many such fish. Has its own water level and temperature