We present the characterization of the aquatic environment, riparian ecosystem and macroinvertebrate communities in 7 basins of the west slope of the Yanachaga Chemillén National Park (PNYCh). The CERA protocol, including the Andean Biotic Index (ABI), the Fluvial Habitat Index (IHF), the Andean Creek Index (Qbr-And) were estimated and the combination of these 3 indexes allowed to calculate the Ecological Status Index of Andean Rivers (ECOSTRIAND) at each sampling point. Additionally the FBI and BMWP-Col indexes were calculated. Sampling was carried out in the 7 basins, between 1800 and 2500 meters of altitude, including the upper basins inside the PNYCh, in the middle and lower basins, both in the buffer zone of the park. We found 179 taxa, 66 families and 14 orders in all basins evaluated. Within the PNYCh, the values of IHF and Qbr-And were optimal, but to go down basins, the indexes...

We present the characterization of the aquatic environment, riparian ecosystem and macroinvertebrate communities in 7 basins of the west slope of the Yanachaga Chemillén National Park (PNYCh). The CERA protocol, including the Andean Biotic Index (ABI), the Fluvial Habitat Index (IHF), the Andean Creek Index (Qbr-And) were estimated and the combination of these 3 indexes allowed to calculate the Ecological Status Index of Andean Rivers (ECOSTRIAND) at each sampling point. Additionally the FBI and BMWP-Col indexes were calculated. Sampling was carried out in the 7 basins, between 1800 and 2500 meters of altitude, including the upper basins inside the PNYCh, in the middle and lower basins, both in the buffer zone of the park. We found 179 taxa, 66 families and 14 orders in all basins evaluated. Within the PNYCh, the values of IHF and Qbr-And were optimal, but to go down basins, the indexes...

Universidad Nacional Agraria La Molina. Escuela de Posgrado. Doctorado en Recursos Hídricos

El presente estudio tuvo por objetivo describir la estructura y composición de las comunidades de macroinvertebrados presentes en partes del sistema de riego y en parcelas de cultivo de arroz del sector Muñuela Margen Derecho en el Bajo Piura, Perú. Se evaluó la colonización de macroinvertebrados tomando en sustratos artificiales muestras en tres puntos principales del sistema de canales: P1 (entrada de agua de riego), P2 (drenaje principal) y P3 (canal que desemboca en los Manglares de San Pedro de Vice) y en tres parcelas de arroz individuales del sector de riego seleccionado. Los resultados indican que las comunidades de macroinvertebrados variaron entre los tres puntos de muestreo principales y entre las tres parcelas de arroz: En el punto P1 se encontró una riqueza media de familias de 11, una riqueza media de especies de 16, la diversidad con el índice de Shannon-Wi...