【摘 要】
：
蚌虾,也叫蚌壳虫,是三北地区养殖池塘中较多见的甲壳类水生动物。在春季4～6月的鱼苗培育池中,众多危害鱼苗生长的敌害生物中,以蚌虾最为严重。蚌虾虽不直接捕食鱼苗,但当其突
【机 构】
：
黑龙江省农垦科学院水产试验站,黑龙江省农垦科学院水产试验站,
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蚌虾,也叫蚌壳虫,是三北地区养殖池塘中较多见的甲壳类水生动物。在春季4～6月的鱼苗培育池中,众多危害鱼苗生长的敌害生物中,以蚌虾最为严重。蚌虾虽不直接捕食鱼苗,但当其突然大量发生时,便在水中上下翻滚,搅动池底泥,使池水很快变浑。它破坏了鱼苗的生长环境并与鱼争夺水中的饵料生物。因此它既影响水的透明度,阻碍正常的光合作用增氧,也惊扰鱼苗。特别是对放入鱼
Clam shellfish, also known as clam shellfish, is a more common aquatic shellfish in the breeding ponds of the Three North regions. In April-June spring fry ponds, many of the predators harm the growth of fry organisms, clam shrimp is the most serious. Although mussels do not directly feed on fry, when it suddenly occurs in large quantities, it tosses up and down in the water and agitates the bottom sediment, causing the water to muddy quickly. It destroys the fry’s growth environment and competes with fish for bait organisms in the water. Therefore, it not only affects the transparency of water, hinder the normal photosynthesis of oxygen, but also disturb fry. Especially for the fish
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