Opportunistic diet of Triportheus nematurus (Characiformes: Triportheidae) in Southern Pantanal ponds: influences of temporal availability and abundance of resources
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| Format: | Artículo científico |
| Language: | en |
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Universidade Estadual de Maringá
2017
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| author | Douglas Alves Lopes |
| author_facet | Douglas Alves Lopes |
| contents | Opportunistic diet of Triportheus nematurus (Characiformes: Triportheidae) in Southern Pantanal ponds: influences of temporal availability and abundance of resources Douglas Alves Lopes Kelly Regina Ibarrola Vieira Rafael da Silva Mota Mateus Rojas Franco de Souza Fabio Edir dos Santos Costa Fernando Paiva Biología Feeding floodplain neotropical fish temporal variations The aim of this study was to investigate the diet composition and feeding strategies of Triportheus nematurus at the Miranda-Abobral floodplain region and evaluate if the temporal phenomenon of the flood pulse has influenced in the diet composition of the species. The fishes were sampled quarterly – between August/2014 and July/2016 – in the marginal ponds located in the Estrada Parque (MS 184). The feeding habits of T. nematurus was characterized as omnivorous and its opportunistic fe eding behaviour, since its diet is composed of different resources along of the year. Insects and organic matter were the most important items during the drought period; plant mate rial (leaves and roots) and Euglenophyceae algae were more expressive during the inundation period; in sects and fruits were also abundant during the flood period. Through statistical analysis, it was possible to ve rify significant variation in the diet composition of the species. This variation in the components of the diet may be related to the availability of resources in the ponds throughout the year and reflect an already known pattern in Neotropica l fish populations, which present high alimentary plasticity. 2017 artículo científico 1679-9283 https://www.redalyc.org/articulo.oa?id=187153564005 en http://www.redalyc.org/revista.oa?id=1871 Acta Scientiarum. Biological Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Biological Sciences (Brasil) Num.4 Vol.39 |
| format | Artículo científico |
| id | redalyc_187153564005 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Opportunistic diet of Triportheus nematurus (Characiformes: Triportheidae) in Southern Pantanal ponds: influences of temporal availability and abundance of resources Douglas Alves Lopes Biología Feeding floodplain neotropical fish temporal variations Opportunistic diet of Triportheus nematurus (Characiformes: Triportheidae) in Southern Pantanal ponds: influences of temporal availability and abundance of resources Douglas Alves Lopes Kelly Regina Ibarrola Vieira Rafael da Silva Mota Mateus Rojas Franco de Souza Fabio Edir dos Santos Costa Fernando Paiva Biología Feeding floodplain neotropical fish temporal variations The aim of this study was to investigate the diet composition and feeding strategies of Triportheus nematurus at the Miranda-Abobral floodplain region and evaluate if the temporal phenomenon of the flood pulse has influenced in the diet composition of the species. The fishes were sampled quarterly – between August/2014 and July/2016 – in the marginal ponds located in the Estrada Parque (MS 184). The feeding habits of T. nematurus was characterized as omnivorous and its opportunistic fe eding behaviour, since its diet is composed of different resources along of the year. Insects and organic matter were the most important items during the drought period; plant mate rial (leaves and roots) and Euglenophyceae algae were more expressive during the inundation period; in sects and fruits were also abundant during the flood period. Through statistical analysis, it was possible to ve rify significant variation in the diet composition of the species. This variation in the components of the diet may be related to the availability of resources in the ponds throughout the year and reflect an already known pattern in Neotropica l fish populations, which present high alimentary plasticity. 2017 artículo científico 1679-9283 https://www.redalyc.org/articulo.oa?id=187153564005 en http://www.redalyc.org/revista.oa?id=1871 Acta Scientiarum. Biological Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Biological Sciences (Brasil) Num.4 Vol.39 |
| title | Opportunistic diet of Triportheus nematurus (Characiformes: Triportheidae) in Southern Pantanal ponds: influences of temporal availability and abundance of resources |
| topic | Biología Feeding floodplain neotropical fish temporal variations |
| url | https://www.redalyc.org/articulo.oa?id=187153564005 |