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The Meeting of Waters, a possible shelter of evolutionary significant units for Amazonian fish

Abstract

Identification of priority conservation areas is crucial for safeguarding freshwater ecosystems. Occurrence of unique populations and/or evolutionary significant units for key species is one of the most frequent reasons for protecting a region or location. In this study we have studied two of the most important fisheries resources of the Amazon basin, Curimata and Tambaqui, from different areas, in order to identify common zones of special diversity. Employing the Barcoding cytochrome oxidase I gene as a genetic tool, we have detected a clear differentiation of the populations inhabiting the Meeting of Waters and the rest of the basin for both species. This area corresponds to the confluence of the Solimões and the Negro rivers, of different physicochemical water characteristics, at the Brazilian city of Manaus in central Amazonas. The Meeting of Waters area (near Manaus) could be recommended as a potential area subject of special management, given its apparent role as a shelter for evolutionary significant units.

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Acknowledgments

We are grateful to Ivan G. Pola for help with laboratory tasks, and to Angel Rosales, Ione Ginuino, Gema Adan and Eduardo del Rosal for collaborating in sampling. Alba Ardura was economically supported by the Spanish National Project CGL2009-08279. This study was carried out in the context of the Brazilian-Spanish cooperation project AECID D-023814-09.

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Correspondence to Alba Ardura.

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Alba Ardura and Vanessa Gomes contributed equally to this study.

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Ardura, A., Gomes, V., Linde, A.R. et al. The Meeting of Waters, a possible shelter of evolutionary significant units for Amazonian fish. Conserv Genet 14, 1185–1192 (2013). https://doi.org/10.1007/s10592-013-0505-8

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  • DOI: https://doi.org/10.1007/s10592-013-0505-8

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