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| Fagundes,Daniela Cristina; Leal,Cecília Gontijo; Carvalho,Débora Reis de; Junqueira,Nara Tadini; Langeani,Francisco; Pompeu,Paulo dos Santos. |
| This study aimed to conduct an inventory of fish assemblages in small streams that are tributaries of large reservoirs in three previously unstudied regions of the Upper Paraná River basin. We sampled 117 streams from 1st to 3rd order in Araguari (Nova Ponte hydropower plant reservoir), Paranaíba (São Simão reservoir) and Grande (Volta Grande reservoir) drainages. In total, 20,696 specimens belonging to 100 species, 53 genera, 20 families and six orders were collected. Of these, 11,530 specimens and 41 species were recorded in Araguari, whereas 17 were exclusive to this drainage. In Grande drainage, 3,537 individuals belonging to 41 species (11 exclusive) and in Paranaíba, 5,629 specimens and 67 species (38 exclusive) were sampled. The mean richness per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Species inventory; New species. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200203 |
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| Prado,Marina Rodrigues do; Carvalho,Débora Reis de; Alves,Carlos Bernardo Mascarenhas; Moreira,Marcelo Zacharias; Pompeu,Paulo Santos. |
| ABSTRACT This study aimed to evaluate if the presence of pollutants promotes changes in feeding habits of fish species from different trophic guilds: the detritivorous species, Hypostomus francisci, and the piscivorous, Hoplias intermedius. Both species were sampled at 12 sites (with different degrees of pollution) in the Rio das Velhas basin, which is heavily polluted by domestic and industrial sewage from the Metropolitan Region of Belo Horizonte (MRBH). Stable isotope analyses of carbon (δ13C) and nitrogen (δ15N) of fish tissue and the main food resources were performed. Fishes from both trophic guilds altered their diets in degraded environments, but the detritivorous species showed greater trophic plasticity. The isotopic niche of both trophic guilds... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Detritivorous; Hoplias intermedius; Hypostomus francisci; Piscivorous; Stable isotopes. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100203 |
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