የመረጃ ስብስቦች የእንቅስቃሴ ዥረት የመረጃ ስብስቦች Species richness Ringsjon Species richness of macroinvertebrates and macrophytes in lake Ringsjon. Macrophyte abundance of in total 19 species measured in presence/absence in 72 transects along the banks... XLSX