通过在室内进行８种淡水小型鱼类吞食鱼卵的试验观察表明：小型鱼吞食鱼卵带有普遍性，吞食强度依次为宽鳍、麦穗鱼、马口鱼、虎鱼、棒花鱼、鱼旁鱼皮、银鱼句、，其中７种鱼具有昼夜摄食节律，高峰期各异，但每天皆有１６ｈ的停食期．由此可见，小型鱼类通过摄食鱼卵，对能够在湖泊水库中自然繁殖的经济鱼类及凶猛鱼类的种群具有一定调控作用，对公鱼等孵化期较长的鱼类移植效果产生不良影响 The experiment of swallowing eggs from eight freshwater small fish indoors showed that the swallowed eggs were common in small fish, and the swallowing intensities were as follows: fins, spike fish, mackerel, tigerfish, Fish skin next to the fish, silver fish sentence, of which seven kinds of fish have circadian rhythm, the peak of different, but every day there are 16h of non-stop period. It can be seen from this that small-sized fish play a role in regulating the population of economically fierce fish and fierce fish capable of natural breeding in lakes and reservoirs by ingesting fish eggs, and have a poor effect on the transplantation effect of longer-lived fish such as male fish influences