Epiplankton in the Barents sea: Summer variations of mesozooplankton biomass, community structure and diversity

► Investigated variations of the summer mesozooplankton in the Barents Sea. ► Diversity varied weakly between years. ► Proportion of herbivores tended to increase with water temperature. ► Total biomass reflected climatic shifts in the southern and northern regions. ► Proportion of trophic groups may be used to detect climatic impact.