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	Provedor de dados Neotropical Ichthyology (2) Autor Abilhoa,Vinícius (1) Donatti,Lucélia (1) Hahn,Norma S. (1) Loureiro-Crippa,Valdirene E. (1) Rios,Flavia Sant'Anna (1) Wolff,Luciano Lazzarini (1) Mais... Palavra-chave Feeding flexibility (2) Fish diet (1) Freshwater (1) Impacted environment (1) Niche shifts (1) Omnivore (1) Resource availability (1) Resources availability (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2006 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Use of food resources by the fish fauna of a small reservoir (rio Jordão, Brazil) before and shortly after its filling Neotropical Ichthyology Loureiro-Crippa,Valdirene E.; Hahn,Norma S.. The construction of dams brings about changes in the course of a river, which directly or indirectly affect the fish fauna. Alterations in the food resources available to the fish favor some species and deter others. In addition to the implications originating from damming, Jordão Reservoir has a characteristically large number of endemic species that, because of the impacts they have undergone, run the risk of extinction. In this study, we investigate the feeding flexibility of the fishes faced with alterations in the food supply through the assessment of the diet and trophic organization of the fish fauna (before and after the damming). Diet was determined analyzing 1,861 stomach contents from 27 fish species. Eight of this species were not caught after... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish diet; Feeding flexibility; Resources availability; Impacted environment. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000300007 Spatial, seasonal and ontogenetic variation in the diet of Astyanax aff. fasciatus (Ostariophysi: Characidae) in an Atlantic Forest river, Southern Brazil Neotropical Ichthyology Wolff,Luciano Lazzarini; Abilhoa,Vinícius; Rios,Flavia Sant'Anna; Donatti,Lucélia. This study described the feeding habits of the characin Astyanax aff. fasciatus. The diet compositions of specimens from two sites (A and B) on a river in Southern Brazil were compared according to the size of individuals and seasonal period. The collections were performed monthly from March 2005 to February 2006, where the stomach contents of 290 specimens were assessed. Food items for A. aff. fasciatus were basically composed of plants and insects, especially leaf fragments, seeds, fruits, filamentous algae, aquatic and terrestrial insects and insect fragments. At site A, the most common items were insect and plant fragments. Conversely at site B, plant fragments were more representative. In general, all items of animal origin showed the highest feeding... Tipo: Info:eu-repo/semantics/article Palavras-chave: Resource availability; Feeding flexibility; Omnivore; Niche shifts; Freshwater. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200018 Registros recuperados: 2 Primeira ... 1 ... Última

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