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青蟹为我国传统出口的珍贵海味品之一,其经济价值高、养殖利润大,随着人民生活水平提高,对青蟹需要量亦愈来愈大。由于目前养殖青蟹的人日渐增多,光靠天然捕捞苗种已无法满足养殖者需要,何况天然苗种生产极不稳定,因此常发生供不应求的矛盾,无法提高产量。在青蟹人工养殖尚未获得生产性的突破之前,捕捞天然的青蟹苗并加以短期的强化培育成幼蟹,开发利用天然蟹苗资源,扩大苗种来源,还是很有必要的。
Blue crab is one of the precious traditional seafood exports in China. Its economic value is high and its breeding profit is great. With the improvement of people’s living standards, the demand for blue crabs is also growing. Due to the current growing number of people who breed crabs, catches of natural fishery alone can not meet the needs of farmers. Moreover, the production of natural seedlings is extremely unstable. Therefore, the contradiction between supply and demand often can not be improved and production can not be increased. Before the artificial breeding of blue crabs have not yet achieved a productive breakthrough, it is still necessary to catch natural crabs and strengthen them to form crabs in the short term, exploit and utilize natural crab resources and expand seed sources.