论文部分内容阅读
2.2 室内大水体(水泥池)育苗试验2.2.1 培苗条件 1984年和1985年冬用南、北育苗室60m~3水泥地2个;1986年用北育苗室60m~3水泥地3个和南育苗室60m~3水泥地2个。北育苗室为全卧式池,南育苗室为半卧式池。池底四周均向中央放坡,中央排水孔通向池底管道,再经池外活动摇臂向外排水。活动摇臂兼有保持水位的作用。北育苗室屋顶透光率为95％,水面照度400～14000lx,水温18.2～22.7℃,pH7.9～8.2;
2.2 indoor large body of water (cement pool) nursery test 2.2.1 nursery conditions 1984 and 1985 winter with South and North nursery room 60m ~ 3 cement 2; 1986 with North nursery room 60m ~ 3 cement 3 and South nursery room 60m ~ 3 cement 2. North nursery room for the whole horizontal pool, south nursery room for the semi-horizontal pool. All around the bottom of the pool to the central slope, the central drainage hole leading to the bottom of the pipeline, and then through the pool activities outside the rocker drainage. Rocker activities both to maintain the role of the water level. The light transmittance of the roof of the northern nursery room is 95%, the illumination of the water surface is 400-14000lx, the water temperature is 18.2-22.7 ° C and the pH value is 7.9-9.2.