organism’s rhythmic life, thereby determining fitness and interactions with other organisms. In the open ocean, pelagic animals like zooplankton perform vertical migrations that actively shape the realized en [...] circadian clock genes in the copepod Calanus finmarchicus during the summer solstice in the high Arctic L Hüppe, L Payton, K Last, D Wilcockson, E Ershova, B Meyer Biology Letters 16: 20200257 (2020) [...] org/10.1098/rsbl.2020.0257 Widely Rhythmic Transcriptome in Calanus finmarchicus during the High Arctic Summer Solstice Period L Payton, L Hüppe, C Noirot, C Hoede, KS Last, D Wilcockson, E Ershova, S