It shows that the main spawning season is in spring and summer.

这表明本海区的鱼类的主要产卵季节是春季和夏季。

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Some grounds are closed during the spawning season (eg, for cod);

有些渔场在产卵季节被封闭（例如，为了鳕鱼产卵）；

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Seabream supplies are decreasing slightly due to the natural spawning season.

由于正值产卵季节，尖吻鲈的供给有所下降。

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Another surprise was the discovery of drifting eggs as late as September, contrary to previous belief that the spawning season ends in July.

WSJ: Asian carp spawning areas wider than expected

Thames Water had initially looked at draining the lake to make the repair but this was ruled out as the fish are in spawning season.

BBC: Row over Maiden Erlegh Lake sewage leak

In the Winnebago system, the fish were helped by state laws and a period in the 1970s and 1980s when the polluted waters were so murky that they were hard to catch, except during the spawning season.

WSJ: Standing Guard for the Sturgeon