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	Provedor de dados BABT (1) Neotropical Ichthyology (1) Autor Becker,Fernando Gertum (2) Vilella,Fábio Silveira (2) De Fries,Lucas (1) Hartz,Sandra Maria (1) Rosa,Gilberto da (1) Silva,José Pezzi da (1) Mais... Palavra-chave Astyanax (1) Atlantic Forest (1) Biodiversity (1) Brazil (1) Diet (1) Environment (1) Fish (1) Flow regulation (1) Hydropower (1) Reservoirs (1) Seed dispersal (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2002 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Reproduction of two loricariid species in a confined river and implications for environmental impacts of dams Neotropical Ichthyology De Fries,Lucas; Rosa,Gilberto da; Silva,José Pezzi da; Vilella,Fábio Silveira; Becker,Fernando Gertum. ABSTRACT Fish reproduction in floodplain rivers is often linked to flow regime and with the inundation of floodplain habitats. However, in confined rivers, where floodplains are absent, the relation between reproduction and flow can in comparison be expected to be distinct. In this study, we describe the reproductive life-history of Hemiancistrus fuliginosus and Hypostomus isbrueckeri in a confined river and discuss its differences relative to floodplain loricariids and also the implications for effects of dam construction and flow regulation. We found the reproductive peak of both species occurred during lowering waters, just after maximum river flow, in contrast to floodplain species that tend to spawn during rising waters. The studied species presented... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Environment; Flow regulation; Hydropower; Reservoirs. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000400209 Diet of Astyanax species (Teleostei, Characidae) in an Atlantic Forest River in Southern Brazil BABT Vilella,Fábio Silveira; Becker,Fernando Gertum; Hartz,Sandra Maria. Feeding habits of six species of Astyanax from river Maquiné are described. Fishes were sampled bi-monthly from November/95 to September/96 in two zones of the river. Items were identified, counted and had their abundance estimated according to a semi-quantitative scale. Frequency of occurrence, alimentary importance index (IFI) values and a similarity analysis of diets for each species-river zone sample were examined. All the species were considered typically omnivorous, with insects and vegetal matter being the most important items in their diet. These species could act as seed dispersers, particularly for macrophytes. Intra-specific spatial differences were not observed in comparisons of samples from two diferent regions of the river, except for A.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diet; Seed dispersal; Fish; Astyanax; Atlantic Forest; Brazil. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200015 Registros recuperados: 2 Primeira ... 1 ... Última

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