Use of bioacoustics in species identification: Piranhas from genus Pygocentrus (Teleostei: Serrasalmidae) as a case study
Fig 4
Fundamental frequency as a function of the standard length for red-bellied Pygocentrus nattereri.
The three boxes show the data from [55]. Each box corresponds to the mean ± SD of a given size class. The green “■” are from [10] and the blue “♦” from this study. Linear regressions are presented for separated datasets and a polynomial model of all the data.