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| TORRENTE-VILARA,Gislene; CELLA-RIBEIRO,Ariana; HAUSER,Marília; RÖPKE,Cristhiana; FREITAS,Maria Helena; DORIA,Carolina Rodrigues da Costa; ZUANON,Jansen. |
| ABSTRACT Chalceus guaporensis is an endemic fish to the upper Madeira River whereas C. epakros is widespread in many rivers of the central and lower portions of the Amazon Basin, middle and upper Orinoco River Basin, the Essequibo River in Guyana and in the Nanay River in northern Peru. According to literature, both species do not occur in syntopy. We carried out ichthyological surveys along the Madeira River Basin and its rapids, and data on abundance, diet and habitat use were obtained for both species. Chalceus guaporensis and C. epakros are morphologically similar, occupying floodplain habitats and exploiting similar food resources. The former predominated upstream from the Jirau Fall, whereas the latter had most of its abundance bellow the last fall... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alestidae; Coexistence; Biology; Geographical barrier; Muddy water. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000300239 |
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