Temporal and spatial variations of nitrous oxide fluxes from the littoral zones of three alga-rich lakes in coastal Antarctica

► N2O fluxes were investigated in littoral zones of three lakes, east Antarctica. ► N2O fluxes showed a large temporal and spatial variation in lake littoral zones. ► On the whole lake littoral zones were the emission sources for atmospheric N2O. ► Lake littoral N2O emissions could have a regional importance in coastal Antarctica.