文蛤稚贝生产性室内越冬暂养试验

Wintering of juvenile hard clam (Meretrix meretrix) in indoor concrete ponds

2000年10月～2001年4月,在盘山县水产局双良公司的1500m3水体育苗室内,将30个底面积各为22 8m2的水泥池作为文蛤稚贝越冬培育池,10个相同面积的水泥池作为水处理池,投放体长0 56～1 24mm的文蛤稚贝4 3808亿枚,在平均水温4℃、pH8 15、溶解氧7mg/L以上、盐度26、白天照度1000lx的试验条件下,进行生产性室内水泥池越冬培育试验。结果越冬培育的文蛤稚贝成活数量达3 6253亿枚,成活率为82 8%,文哈稚贝在越冬培育过程中,其体长不增长,不摄食,亦不运动。

Wintering of Meretrix meretrix juveniles was conducted in 30 indoor concrete tanks each with bottom surface area of 22.8 m2 at Shuangliang company,Panshan county from October 2000 to April 2001. Some 4.3808×108 juveniles with initial body length of 0.56 mm to 1.24 mm were stocked into the tanks and reared under the temperature of 4℃,dissolved oxygen of 7 mg/L, salinity of 26,light intensity of 1000 lx in daytime, and water exchange and aerated daily. The animals had survival rate of 82.8% without growth, and feeding during wintering.