Nucleotide diversity of Hemigrammus cf. marginatus (Characiformes, Characidae) in the upper Paraná river floodplain - doi: 10.4025/actascibiolsci.v34i3.6669. Acta Sci. Biol. Sci. 2012;34(3):303-309. doi:10.4025/actascibiolsci.v34i3.6669