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Provedor de dados:  Neotropical Ichthyology
País:  Brazil
Título:  Feeding ecology of two sympatric species of large-sized groupers (Perciformes: Epinephelidae) on Southwestern Atlantic coralline reefs
Autores:  Freitas,Matheus O.
Spach,Henry L.
Minte-Vera,Carolina V.
Francini-Filho,Ronaldo B.
Moura,Rodrigo L.
Data:  2017-01-01
Ano:  2017
Palavras-chave:  Abrolhos Bank
Epinephelus morio
Feeding overlap
Mycteroperca bonaci
Resumo:  ABSTRACT Red and black groupers are large-bodied opportunistic ambush predators commonly found in Southwestern Atlantic tropical reefs. We investigated the diet of both species in order to detail ontogenetic, spatial and temporal trends, and to assess the extent of overlap in resource use between these two sympatric predators on the Abrolhos Bank, Brazil. Decapods and fishes were the main food items of Epinephelus morio while fishes were the main prey of Mycteroperca bonaci. Both diets were significantly influenced by body size and habitat, but only smaller individuals of E. morio feed almost exclusively on crustaceans. While the two groupers rely on many of the same prey types, coexistence may be facilitated by E. morio feeding more heavily on crustaceans, particularly the blackpoint sculling crab Cronius ruber, while black grouper take comparatively few crustaceans but lots of fish prey. Predators like red and black groupers could trigger indirect effects in the community and influence a large range of ecological processes, such as linkages between top and intermediate predators, and intermediate predators and their resources.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Sociedade Brasileira de Ictiologia
Relação:  10.1590/1982-0224-20160047
Formato:  text/html
Fonte:  Neotropical Ichthyology v.15 n.2 2017
Direitos:  info:eu-repo/semantics/openAccess

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