The quantity of UVA/deep violet light varies seasonally and affects locomotor activity in a marine annelid, providing cues for phenology in addition to those provided by change in photoperiod.

中文翻译：

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时间需要正确数量和类型的光

UVA/深紫光的数量随季节变化并影响海洋环节动物的运动活动，除了光周期变化提供的线索外，还为物候学提供线索。