论文部分内容阅读
1998年6月至2000年7月对浙江省乐清湾塘养泥蚶的生长进行了详细的观察。刚孵化变态的D形幼虫壳长92～100μm,经10d培育达到180.5～201.5μm,平均每日增长8.9～10.2μm;稚贝附着后16d平均壳长从191.3μm增长到634.1μm,平均每日增长27.7μm;出库稚贝放养于围塘内,培育9个月平均壳长达到8.34mm,成为商品贝苗,平均每月增长0.86mm,其中9-10月份增长可达1.65mm;再经15个月培育达到成品贝,平均壳长28.57mm,平均每月增长1.35mm。泥蚶是一种慢生型贝类。对室内浮游幼虫、稚贝、中间暂养贝苗、成蚶养殖期间的多项生长指标进行测量和称重,获得的相关关系非常显著。
From June 1998 to July 2000, a detailed observation was made on the growth of muddy catfish in Yueqing Bay of Zhejiang Province. The larvae of newly hatched and deformed D larvae grew 92 ~ 100μm in length and reached 180.5 ~ 201.5μm after 10d incubation, with an average daily growth of 8.9 ~ 10.2μm. The average shell length increased from 191.3μm to 634.1μm on the 16th day, An increase of 27.7μm. The juveniles were stocked in the pond and the average shell length reached 8.34mm after 9 months of cultivation. The average monthly shell length was 0.86mm, with an increase of 1.65mm in September-October. After 15 A month to cultivate finished shellfish, the average shell length 28.57mm, an average monthly increase of 1.35mm. Mud is a slow-growing shellfish. On the indoor plankton larvae, juveniles, the middle of interim shelled Baimiao, a number of growth indicators during the cultivation and breeding were measured and weighed, the correlation was very significant.