环形网在黑鲷与日本对虾混养池中的使用效果

为在虾池中混养黑鲷(Sparus macrocephalus),特在虾池中设置环形网.在环形网内养殖黑鲷,并设置集鱼网箱以驱赶的方式将黑鲷集中捕捞;在环形网外边养殖日本对虾(Penaeus japonicus),通过移植藻钩虾(Amphithoe japonica)、拟沼螺(Assiminea sp.)等为对虾提供生物饵料.在2 hm2的虾池中养殖黑鲷产量4 330 kg,捕捞成活率100%,对虾产量为1 100 kg,获利6万余元.

Experiment of black seabream and Japan prawn polyculture in shrimp pond using annularity net

A annularity net was set up in the shrimp ponds.Black seabream,Sparus macrocephalus was cultured inside of the annularity net.Japan prawn,Penaeus japonicus was cultured outside the net.The black seabream was gathered with fishing nets.Amphithoe japonica and Assiminea sp.was used to improve the water condition of the shrimp ponds.This mode of raising black seabream together with Japan prawn in same pond improve the comprehensive utilization of the shrimp ponds.In a 2 hm2 of shrimp pond we harvested 1 100 kg shrimp and 4 330 kg fish,the survival rate of black seabream was 100 %.We got a profit of 61 420 yuan in all.