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- W2284920576 abstract "Rios Zunag, Pastaza, and Topo flow through one of the rainiest and water-rich places in Ecuador. Rio Zunag is a relatively small, pristine montane river and Rio Pastaza is a relatively large, contaminated river that receives the untreated wastewater of many communities. Rio Topo’s unique watershed and gradient allow it to be home to many plants that have adapted to its unique environment, including the hyperendemic liverwort Myriocolea irrorata. However, in recent years, all of the water of Rio Topo has been sold by the state of Ecuador to be developed for hydroelectric projects (HEP). The first of these projects is currently under construction near the small community of Azuay. HEPs have major environmental and social impacts in the regions they are built. The objectives of this study were to assess the water quality of Rios Topo, Zunag, and Pastaza, with a focus on Rio Topo due to the current HEP construction. Social and economic impacts of the HEP were also included briefly. All three rivers were compared using benthic macroinvertebrate metrics, as well as physiochemical characteristics. Additionally, the samples taken upstream and downstream of the construction on Rio Topo were compared. Overall, the macroinvertebrate metrics supported the expectation that Rio Zunag would have the highest macroinvertebrate family richness, family diversity, and overall water quality, followed closely by Rio Topo, and less closely by Rio Pastaza. According to the macroinvertebrate metrics, the water quality upstream and downstream of the HEP on Rio Topo was not significantly different. The physiochemical data supported these findings. This was expected because the HEP is not currently operational, but it will be critical to do further water quality studies in the future when it is. The HEP had some social and economic impact on the community of El Topo, including a six-year law suit and resistance movement, biased economic benefits, and general exploitation of El Topo’s natural resources." @default.
- W2284920576 created "2016-06-24" @default.
- W2284920576 creator A5077555671 @default.
- W2284920576 date "2015-01-01" @default.
- W2284920576 modified "2023-09-27" @default.
- W2284920576 title "Water Quality in the Río Pastaza Watershed A comparative study of Ríos Topo, Zuñag, and Pastaza and the impact of the Topo Hydroelectric Project using Macroinvertebrates as Bioindicators" @default.
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