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Hydrology And Macroinvertebrates As Biological Indicators- An Integrated Study Of The Río Zamora Watershed, Loja, Ecuador, Isabel Ryde
Independent Study Project (ISP) Collection
Water quality and access is under grave threat in Ecuador, yet remains poorly studied. Macroinvertebrates were used as biological indicators to study water quality around Reserva Natural Madrigal del Podocarpus, Loja Province, Ecuador. Data on macroinvertebrates was combined with hydrologic measurements of stream functions. Macroinvertebrate sampling was conducted from 6 sites within the Upper Río Zamora watershed. Geologic outcrops were observed along several roadcuts and stream banks. Hydrologic data was collected by measuring discharge, elevation change, and finding the highest permanent spring. The EPT index (number of EPT individuals and percentage of EPT individuals) and the BMWP/Colombia Index for macroinvertebrates …