Aquatic macroinvertebrate trophic guilds, functional feeding groups, and water quality of an andean urban river

In the Anthropocene, man has imposed his activities above natural processes of ecosystems. Rivers have undergone major changes associated with urban centers, so monitoring them is important to determine their status and suitability provide environmental services. Studies applying community ecology approach, such as energy flow in aquatic macroinvertebrate assemblages, may be appropriate functioning. This study characterized an Andean river that runs across city Ayacucho (Peru). Water physicochemical parameters biotic quality indices were used compared abundance trophic guild components functional feeding groups demonstrate latter are at least equally suitable estimate water quality. The section studied ranged from 2640 2900 m a.s.l. was monitored wet dry seasons. Six stations established according extent influence center. variables abundances determined. A Surber net for multihabitat sampling; macroinvertebrates identified genus level (in most cases) counted relative abundances. Trophic guilds (detritivore, predator, herbivore) formed using data identification information available Argentina, Colombia, Ecuador, Bolivia, Peru. Functional set based on classification families. sensitivity metrics assessed by relating Biotic Index (ABI), Biological Monitoring Working Party adapted Colombia (BMWP/Col.), Ephemeroptera, Plecoptera, Trichoptera (EPT) indices. Environmental increased significantly impacted stations, where taxa decreased. varied, those fine particles sites a higher impact. characteristics highly correlated BMWP/Col ABI Therefore, these can its