锯缘青蟹大眼幼体与斑节对虾的混养试验

Experiment of Farming Mud Crab Megalops and Grass Prawn Simultaneously in the Same Ponds

为了寻找锯缘青蟹 (Scylla serrata Forskal)养殖种苗的新方法 ,于 2 0 0 3年 4～ 9月在广西合浦山口虾场进行锯缘青蟹大眼幼体与斑节对虾的混养试验。试验池塘 2口 ,大小相等 ,面积共 2 .6 hm2 ,水深 1.2～ 1.5 m。试验结果是 ,总产虾蟹 3775 .6 kg,其中锯缘青蟹 94 7.6 kg,对虾 2 82 8.0 kg。锯缘青蟹大眼幼体养到成体时的成活率最高可达 12 .8%。

Shortage of mud crab seed is one of the major constraints for further development of mud crab farming.The trial aims to find out a solution to crab seed production by doing megalops nursery in ponds in which grass prawn was farmed simultaneously.The trial was conducted in two ponds of the same size at 2.6 ha.The result showed that the output of grass prawn and mud crab in the two ponds was 3775.6 kg (mud crab 947.6 kg and grass prawn 2828.0 kg),and the final survival of megalops of mud crab was 12.8%.