| Revista: | Acta scientiarum. Biological sciences |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000433612 |
| ISSN: | 1679-9283 |
| Autors: | Costa, Matheus Souza1 Smith, Welber Senteio1 |
| Institucions: | 1Universidade Paulista, Laboratorio de Ecologia Estrutural e Funcional de Ecossistemas, Sorocaba, Sao Paulo. Brasil |
| Any: | 2019 |
| Volum: | 41 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | This work describes the habits of individuals of the species Astyanax cf. paranae that inhabit Ribeirão do Ferro, a bedside stream. Overall, 92 specimens were analyzed (53 females and 39 males), and the size ranged from class 4.7-5.7 cm to class 10.7-11.7 cm. The females consisted in the larger portion of the samples, except for classes of 4.7-5.7 and 5.7-6.7 cm. The condition factor between males and females (t = 2.1545; p < 0.05) shows distinguished values,with females having higher averages. Fragments of allochthonous insects and plant matter make up the basis of the species' diet. The study showed that the population of A. cf. paranaeis predominantly females and have the highest standard for length and weight, which may favor biological diversity and increased larvae and juveniles, maximizing the chance of individuals reaching adulthood. The species prefers an environment with predominance of rocks and logs, which favors shelters. Its diet comes mostly from the riparian forest, with a high dependence on the allochthonous items,thus,these vegetations are very important for maintaining populations of the species |
| Disciplines | Biología |
| Paraules clau: | Peces, Ecología, Peces de agua dulce, Estructura poblacional, Distribución por talla, Factor de condición, Hábitos alimenticios, Bosque ripario, Astyanax paranae, Characidae |
| Keyword: | Fish, Ecology, Freshwater fish, Population structure, Size distribution, Condition factor, Feeding habits, Riparian forest, Astyanax paranae, Characidae |
| Text complet: | http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45400/751375148953 |
