Composición taxonómica del zooplancton del embalse de Betania, departamento del Huila, Colombia

• Main Authors: Yimy Herrera Martinez, Gabriel Hernando Guillot Monroy
• Format: Article
• Language: English
• Published: Universidad Nacional de Colombia 1999-01-01
• Series: Acta Biológica Colombiana
• Subjects: Zooplancton; Composición de Especies; Embalses; Tropical; Betania; Colombia
• Online Access: https://revistas.unal.edu.co/index.php/actabiol/article/view/25861

To determine the species composition of the zooplancton in the reservoir Betania (altitude; 560 m.a.s.l.; area: 7.4 km2; vol: 1971 x 106 m3; mean depht 28 m), at seven sites and several depths, bimonthly net samples (100 and 200 microns mesh size) were taken during 1991.  Alltogether 24 species were found: Thermocyclops decipiens (Crustacea, Copepoda), Moina sp., Ceriodaphnia cornuta y Allona sp. (Crustacea, Cladocera); 19 species of rotífers, of which 7 belong to the genus Brachionus, as well as larvas of the dipter Chaoborus sp. For the first time Brachionus havanaensis, B. falcatus falcatus, b. quadridentatus, y Platyias cuadricornis  f. brevispinus  were found in Colombia.  The species composition was compared with the composition of other lakes and comparison shows that the Betania reservoir has a typical species composition for warms tropical lakes.