Jensen, T.C. 2019. Winter decrease of zooplankton abundance and biomass in subalpine oligotrophic Lake Atnsjøen (SE Norway): Seasonal changes of zooplankton in a subalpine lake. Journal of Limnology. 78, 3 (Sep. 2019). DOI:https://doi.org/10.4081/jlimnol.2019.1877.