Abstract
Fish introductions are common practices due to intentionally or unintentionally translocations of species between watersheds. Herein we report the spread of the non-native cichlid Laetacara araguaiae Ottoni & Costa 2009 in the Paranapanema River basin, southern Brazil. Native from the Araguaia River (Central Brazil), this species was probably introduced by releases made by aquarists. Its new area of occurrence is characterized as natural nursery and important for the life cycle of native fish. Due to its biological characteristics, the species has the ability to cause a negative impact on the aquatic biota through possible interactions, such as predation of eggs, larvae and juveniles of native fish, and spread of parasites.Keywords: biological invasion, Cichlinae, fish, exotic species, Upper Paraná River basin.
Highlights
É relatada a dispersão do ciclídeo não nativo Laetacara araguaiae Ottoni & Costa 2009 na bacia do rio Paranapanema, sul do Brasil
At the start of the 1990s, L. araguaiae was caught in the Upper Paraná River basin and catalogued in scientific fish collections
In the Upper Paraná River basin, L. araguaiae is classified as an omnivore because it feeds on algae, vegetable fragments, and invertebrates
Summary
É relatada a dispersão do ciclídeo não nativo Laetacara araguaiae Ottoni & Costa 2009 na bacia do rio Paranapanema, sul do Brasil. Native to the Araguaia River basin, in Central Brazil, Laetacara araguaiae Ottoni & Costa 2009 is popularly known as “carazinho” (Figure 1) and has a high, compressed body.
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