Diversidad de macroinvertebrados acuáticos en ecosistemas lénticos y lóticos de la cuenca baja del río Mazán, Loreto, Perú

• Autor: Chong Mendoza, Jhancarlo
• Formato: tesis de grado
• Fecha de Publicación: 2024
• Institución: Universidad Nacional De La Amazonía Peruana
• Repositorio: UNAPIquitos-Institucional
• Lenguaje: español
• OAI Identifier: oai:repositorio.unapiquitos.edu.pe:20.500.12737/11076
• Enlace del recurso: https://hdl.handle.net/20.500.12737/11076
• Nivel de acceso: acceso abierto
• Materia: Diversidad de especies; Macroinvertebrados; Invertebrado acuático; Ecosistemas de agua dulce; Flujo de agua; https://purl.org/pe-repo/ocde/ford#1.06.12

The diversity of aquatic macroinvertebrates was evaluated, in terms of richness and abundance, in lentic and lotic environments of the lower Mazán river basin. Three oxbow lakes, three streams and the river were sampled as a contrast. Samples were collected with a “D” type net using the modified trawl technique. Forty families and 2474 individuals were reported from the evaluated water bodies belonging to insects, oligochaetes, mites, nematodes, gastropods, decapods, copepods, bivalves, springtails and ostracods. Of the oxbow lakes, Yuto had the highest richness and abundance, with 12 families and 388 individuals; while, of the streams, Adán had the highest richness and Atún Poza the highest abundance, with 15 families and 242 individuals, respectively. However, the river was the richest and most abundant of all the aquatic environments evaluated, with 24 families and 967 individuals. Among all the families, Chironomidae was the most abundant in most of the water bodies, dominating in the Mazán river, in Adán creek and in all the oxbow lakes. It was concluded that, unlike the oxbow lakes, the streams had the highest family richness and a homogeneous distribution of macroinvertebrate abundance; that is, the lotic environments were more diverse than the lentic environments. In addition, insects were the most representative in both richness and abundance, with the family Chironomidae (Diptera) being the most prominent.