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三疣梭子蟹广泛分布于我国10～30m水深的沙泥或沙质海底,肉味鲜美,深受消费者欢迎。近年来,由于过度捕捞及海水污染等原因,其天然资源量锐减,远远不能满足市场需求,三疣梭子蟹的人工繁养应运而生。但作为人工繁养的关键技术之一的亲蟹的培养中的一些问题一直未得到很好的解决,许多育苗场购进大量的亲蟹,以期获得充足的抱卵蟹,但往往是增大了成本,而成活率和抱卵率很低,效果不理想。笔者于2003年3月～5月在天津市水产研究所增殖站利用海捕未抱卵蟹进行了人工抱卵及培育工作,共暂养三疣梭子蟹184只,成活136只,获抱卵蟹127只,成活率73%,抱卵率94%,现将主要技术措施简述如下,供参考。
Portunus trituberculam widely distributed in China 10 ~ 30m depth of sand or sandy seabed, meat flavor, welcomed by consumers. In recent years, due to over-fishing and seawater pollution and other reasons, its natural resources dropped sharply, far from meeting the market demand, Portunus trituberculatus manual breeding came into being. However, some problems in the cultivation of crabs, one of the key technologies of artificial breeding, have not been well solved. Many nurseries purchase a large number of crabs in order to obtain enough crabs, but they often increase Cost, while the survival rate and hold the egg rate is very low, the effect is not satisfactory. The author in March 2003 to May in Tianjin Fisheries Research Institute proliferation station to use the sea to catch the uncovered crab artificial spawning and breeding work, a total of 184 Portunus trituberculatus crab, survived 136, 127 crabs were crabs, Survival rate of 73%, hold rate of 94%, now the main technical measures are summarized below, for reference.