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Fish assemblages of the Casiquiare River, a corridor and zoogeographical filter for dispersal between the Orinoco and Amazon basins
Aim The aim of this study was to determine whether the Casiquiare River functions as a free dispersal corridor or as a partial barrier (i.e. filter) for the interchange of fish species of the Orinoco… Expand
Ecology of the coporo, Prochilodus mariae (Characiformes, Prochilodontidae), and status of annual migrations in western Venezuela
Deforestation, overfishing, pollution, and construction of dams have severely impacted migratory fishes of western Venezuela. The coporo, Prochilodus mariae (Prochilodontidae), has supported the… Expand
Dietary segregation among large catfishes of the Apure and Arauca Rivers, Venezuela
Relative abundance, population size structure and diet composition and similarity were examined over 5 years for the nine most abundant catfish (Siluriformes) species captured in the ApureArauca… Expand