There are 29 genus 59 species of rotifer. The most of them are generalists and lives in antiplano. The mean density and biomass of protozoa are 50ind/L and 0.060mg/L.

• 共检出轮虫7科19属35种，以广布性和高原冷水性种类为主，轮虫的平均密度为50ind/L，平均生物量为0.；060mg/L。