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- Title
ENERGÍA CALÓRICA, BIOMASA Y ESTRUCTURA DE LOS MACROINVERTEBRADOS ACUÁTICOS EN LA RESERVA LA NITRERA, CONCORDIA, ANTIOQUIA, COLOMBIA.
- Authors
RUIZ-TORO, Julián Andrés; AGUIRRE-RAMÍREZ, Néstor Jaime; SERNA-LÓPEZ, Juan Pablo; HERNÁNDEZ-ATILANO, Esnedy; de Jesús VÉLEZ-MACÍAS, Fabio
- Abstract
The reservoir La Nitrera is located at 2140 m.a.s.l. in Concordia's town, in the Antioquia's department (Colombia) and is the only source of water supply in the municipality. The operation of a reservoir on a lotic system generates affectations in the structure and assembly of aquatic ecosystems. The purpose of this research was to analyze the distribution of biomass of aquatic macroinvertebrates before and after of the reservoir to determine the impact of it on the hydrobiological communities. For this purpose, the hydrobiological variables were analyzed in dry season, rain season and in different periods of transition between 2016 and 2017 in four monitoring stations, making the determination, counting and defining the trophic role of aquatic macroinvertebrates, in addition to a thermogravimetric analysis (TGA) of the biomass. With the obtained information, a trophic model and an analysis of the loss of the available caloric energy of the biomass (TGA) was made. The results showed that the communities of aquatic macroinvertebrates had a similar modularity between them in the stations before the reservoir and different modularity in the station after the reservoir. Through the modularity index (Ghepi model) and the TGA analysis, it could be established that the reservoir generates an alteration in the trophic chain of aquatic macroinvertebrate communities.
- Subjects
BIOMASS energy; WATER supply; THERMOGRAVIMETRY; RESERVOIRS; INVERTEBRATES
- Publication
Acta Biológica Colombiana, 2020, Vol 25, Issue 1, p29
- ISSN
0120-548X
- Publication type
Article
- DOI
10.15446/abc.v25n1.76435