鱼类会在繁殖季节迁移到上游。

Fish migrate upstream during the breeding season.

在繁殖季节，塘鹅群落可能会非常吵闹。

A gannet colony can be quite noisy during the breeding season.

在整个繁殖季节不捕捞磷虾。

Refraining from krill fishing throughout the breeding season.

处在繁殖季节一只鹭的长羽毛

The long plumes of a heron in the breeding season.

五月到八月间是螃蟹的繁殖季节.

Between May and August is the breeding season for crabs.

信天翁在南大洋筑巢往往繁殖季节之间进行极地考察。

Albatrosses nesting in the Southern Ocean often undertake circumpolar trips between breeding seasons.

研究小组从15只秃鹫开始，在四个繁殖季节增加了7只雏鸟。

The team began with 15 vultures and have added 7 chicks over four breeding seasons.

它不会走的很远，而且将会再次回来，一个繁殖季节它会往返八次，每次会产下100个蛋。

She'll not go far, for she'll be back again,up to eight times during a single breeding season to deposit up to 100 eggs on each visit.

这正是繁殖季节，每年只有在这个时候，它们的喙才会呈现如此艳丽的色彩，它们因此得到一个绰号：海上小丑。

It's breeding season. It's only at this time of the year that their beaks take on the spectacular colors that earn them the name, clowns of the sea.

作者尝试在非繁殖季节应用外源促性腺激素对家猫进行人工诱导发情，并判断其较为准确的排卵时间。

The aim of this study is to determine the ovulation duration of domestic cats after superovulation during their non-breeding seasons.