摘要
通过几年的石斑鱼网箱养殖试验表明,海水温度在8~30℃、密度在1.010以上的内湾浅海均适宜石斑鱼的生活。在适温季节里,一般生长规律可用平均生长速度公式k=0.02766表示;其体重与全长关系式为W=0.01653L ̄(3.0205);并得出网箱养殖密度以10kg/m ̄2为宜,最佳投饵次数为一天一次。此外,还对石斑鱼的饵料系数、养殖成活率等进行了探索。
Based on experiments of Estuary groupedin net-cage culture duting l989一1992,We have come to the conclusion as follows:l,Esturary grouperadapts itself extensively to the sea water specific gravity being above l,010and temperatare 8一28℃ 2.being W=0.01653L3.0205 while the K=0.02766W0-0.3131 3.The optimum density in net-cage culture is l0 kg/m2,and onefeeding everyday is recommended.
关键词
石斑鱼
网箱养殖
生长规律
放养密度
Estuary grouper,Cage-culture,Growing rate,culture density