Winter population dynamics and survival strategies of the intertidal mudflat amphipod Corophium volutator (Pallas)

► We studied winter dynamics of an amphipod on high-latitude intertidal mudflats. ► Mudflats are cold, covered in ice and affected by ice scouring. ► Amphipod densities declined linearly with time, independent of cold or ice events. ► Amphipods do not avoid stress by migrating, but tolerate subzero temperatures. ► Accumulated energy reserves appear to drive overwintering success.