产卵季节

产卵季节LRH-A对鲤、鲢、草鱼促性腺激素分泌的诱导

A comparative study on the effect of LRH-A to the serum gonadotropin levels of female carps in spawning season

三是河豚。近期是河豚产卵季节，也是食用河豚中毒的高危险期。

Recent globefish are spawning season , fish poisoning is consumption of high-risk period .

产卵季节在5月，怀卵量和壳宽呈线性关系。

The spawn season is in June , and the brood amount is positive to carapace .

每年金鱼产卵季节，还要在鱼缸中放一种水草或棕，以便金鱼产卵在草上，小鱼孵化后还要按类分盆，以免串种和大鱼误食小鱼。

Every season , even in the goldfish spawning aquatic or in an aquarium , so the goldfish in brown eggs hatch , small grass and even after such points , according to a fish eating fish and string .

这是个鱼产卵的季节，因而禁止捕鱼。

This is the season when fish lay eggs , therefore fishing is forbidden .

本文通过对海区雌体现场产卵情况季节性和昼夜性变化的观察结合海区环境的季节变化，探讨其产卵变化的规律和生态意义；

The seasonal and diel variation in fecundity of females in situ . were observed , and the pattern of spawning and its ecological significance were also discussed .

原来这正是雌鱼找地方产卵的季节，它们引着雄鱼成群地游入淡水，激起一阵唧唧的声音。

It was the time at which the females , going to find suitable places in which to spawn , precede the males and make a great noise through the fresh water .

雌雄蟹能量储存和利用有着相同的变化趋势，在产卵和交配季节肝胰腺出现峰值，但雄蟹的能量投入大于雌蟹。

The energy store and utilization is in the same trend among the sexes , and attain the peak when in spawn and copulation season , but the energy input for males is higher than females .