论文部分内容阅读
当前,天津地区的许多养殖场利用原有水体大规模养殖锯缘青蟹获得了成功,而自然海区锯缘青蟹的资源匿乏,苗种锐减,因此,解决锯缘青蟹人工育苗技术可以改变当地盐碱地池塘及半咸水池塘养殖品种单一的现状,使海水养殖得到可持续发展。一、亲蟹培育1.亲蟹来源亲蟹为天然海区已交配?
At present, many farms in Tianjin have succeeded in using the original large-scale culture of blue-green crabs in the water bodies. However, the resources of the natural blue-crested crabs in the natural sea area are scarce and the seedlings are drastically reduced. Therefore, It is possible to change the status quo of the single culture of ponds and brackish water ponds in the local saline-alkali lands so as to ensure the sustainable development of mariculture. First, the crab nurturing a crab from the natural crab source for the natural area has been mating?