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Revista U.D.C.A Actualidad & Divulgación Científica
versão impressa ISSN 0123-4226
Resumo
PEREZ-RODRIGUEZ, Catalina; MANJARRES-PINZON, Gustavo A. e TAMARIS-TURIZO, Cesar E.. Aquatic insects associated with streams of the Serranía de la Macuira - La Guajira, Colombia. rev.udcaactual.divulg.cient. [online]. 2021, vol.24, n.1, e1941. Epub 21-Abr-2021. ISSN 0123-4226. https://doi.org/10.31910/rudca.v24.n1.2021.1941.
Aquatic insects are high importance in aquatic ecosystems due to their high abundance and diversity and water quality indicators. In this work, assemblages of aquatic insects were studied in La Macuira, northern La Guajira, Colombia. Five intermittent streams were selected as sampling sites such as Mekijanoü, Chaamaalüü, Kanewerü, Mmalaüü and Kajashiwoü. Surber net was used for collecting of organisms for five minutes; also, samples of leaf litter were taken manually of the streambed. The samples collected were integrated to form a sample composed on each site, and then analyze this diversity; also, the water quality index BMWP/Col was estimated for each site. A total of 545 individuals were collected, grouped in 25 genus, 19 families and 7 orders. The genus Heterelmis, Corydalus, Rhagovelia and Mayobaetis, Tholymis and Mecistogaster are recorded for the first time for the Serranía de la Macuira. The Mekijanoü stream presented the high abundance (411 individuals) and genera, in which Heterelmis predominated. In contrast, Kajashiwoü presented the lowest abundance (20 individuals) fluctuated by the formation of wells and poor connectivity between them. The BMWP/Col index whose ranged from 41 to 87, indicating that four streams showed a moderate contamination and one was slightly contaminated.
Palavras-chave : Richness; Macroinvertebrates; BPWM/Col; Streams; Microhabitats.