| Revue: | Acta scientiarum. Biological sciences |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000433602 |
| ISSN: | 1679-9283 |
| Autores: | Jorge, Monica Bueno1 Vilela, Maria José Alencar1 Suarez, Yzel Rondon1 Lima-Junior, Sidnei Eduardo1 |
| Instituciones: | 1Universidade Estadual de Mato Grosso do Sul, Centro de Estudos em Recursos Naturais, Dourados, Mato Grosso do Sul. Brasil |
| Año: | 2019 |
| Volumen: | 41 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | Changes in diet of Laetacara araguaiae Ottoni and Costa, 2009 were evaluated in the Sucuriú River (Upper Paraná basin, Brazil) in an area with a small hydroelectric power plant, both before and after the formation of the reservoir, in order to answer: Did the construction of the reservoir affected the diet ofthis species? The results showed greater change of diet composition in the upstream section of the reservoir. It was observed that before the formation of the reservoir and the first year after, the individuals from upstream section formed a group characterized by an insectivorous diet. With the dam construction and habitat change we observed that aquatic plant material, sediment, and algae predominated in the diet. These results show the opportunistic feeding habit of L. araguaiaeand contribute to the understanding of how the impoundment of rivers can influence the trophic dynamics of the ichthyofauna |
| Disciplinas: | Biología |
| Palabras clave: | Biología acuática, Peces, Presas, Impacto ambiental, Hábitos alimenticios, Espectro trófico, Laetacara araguaiae, Cichlidae |
| Keyword: | Aquatic biology, Fish, Reservoirs, Environmental impact, Feeding habits, Trophic spectrum, Laetacara araguaiae, Cichlidae |
| Texte intégral: | http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43880/pdf |
