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- Title
Chironomidae y su relación con variables fisicoquímicas en tres quebradas del río Combeima (Tolima, Colombia).
- Authors
Geraldine Rojas-Céspedes, Mayra; Guevara, Giovany; Reinoso-Flórez, Gladys
- Abstract
Introduction: Chironomids are part of the essential macroinvertebrates in the typification of aquatic habitats, since they harbor species sensitive to pollution, while others are indicators of well-preserved environments. They are key organisms due to their abundance, diversity, and ability to respond to various natural and anthropogenic pressures. Objective: To determine the relationships between the genera of the Chironomidae family and the physicochemical water quality. Materials and methods: Six sampling events were realized in three streams of the Combeima River Basin (Las Perlas, La Plata, and Cay; Tolima, Colombia). A total of 15,594 larvae distributed in three subfamilies and 20 genera were recorded. The canonical correspondence analysis (CCA) showed that Cardiocladius, Polypedilum, Thienemannimyia, Cricotopus and Alotanypus were related to oxidation-reduction processes, while Chironomus, Larsia, Cladotanytarsus, Onconeura, Riethia, Paratanytarsus, and Endotribelos were associated with mineralization processes. Additionally, the relationship of the water quality indices (ICA, ICOMO, ICOSUS and ICOTRO) with the genera of Chironomidae was evaluated. Alotanypus and Cricotopus presented association with the ICOSUS and ICOTRO indices, while Cardiocladius, Thienemannimyia and Polypedilum were associated with ICOMO; Saetheria, Riethia, Larsia, Endotribelos, Cladotanytarsus, Paratanytarsus, Onconeura, and Dicrotendipes partnered with ICOMI. Regarding the WQI, the genera that were associated were Chironomus, Rheocricotopus, Parametriocnemus, Pentaneura and Corynoneura; contrary to Cryptochironomus which separates itself from any association. Conclusion: The results reveal that not only the presence of organic matter facilitates the establishment of the Chironomidae family in the water bodies, but also the geomorphological characteristics of the analyzed streams.
- Publication
Magazine of the Colombian Association of Biological Sciences / Revista de la Asociación Colombiana de Ciencias Biológicas (ACCB), 2023, Vol 1, Issue 35, p32
- ISSN
0120-4173
- Publication type
Article
- DOI
10.47499/revistaaccb.v1i35.283