饲育条件下Semisulcospiens　decipiens的生长

Growth of Newborn Semisulcospira decipiens Reared Under Laboratory Condition

在饲育温度条件下研究了Ｓ．ｄｅｃｉｐｉｅｎｓ的生长和产仔数及与饲育水温的关系。结果表明水温在上升期和下降期，新生贝和稚贝的生长速度较快，产仔数也较多．成体贝在水温１１℃～２９℃时，都可产出新生贝，以１８℃～２４℃时产出较多．在高温饲育条件下，成体贝的生长速度缓慢。

rowth rate of newborn Semisulcospira decipiens reared for 10 months ander laboratory conditions and under different water temperatures were studied. The results obtained show that the newborns in S.decipiens occurred at a water temperature ranging from 11 to 29℃.Numbers of newborn S.decipiens were produced reratively abundant when the water temperature was in the 18℃-24℃ range.Growth rates were small in temperature above 25℃.