Table 1 Biometric data and biological indexes of A. paranae, A. fasciatus and hybrids from the headwaters of Grande River.
Females | Males | |||||
|---|---|---|---|---|---|---|
A. paranae | Hybrids | A. fasciatus | A. paranae | Hybrids | A. fasciatus | |
TL (cm) | 9.68 ± 0.06a | 10.23 ± 0.46ab | 10.92 ± 0.08b | 9.03 ± 0.15a | 10.94 ± 0.23bc | 10.46 ± 0.37c |
BW (g) | 12.93 ± 0.27a | 14.24 ± 2.27ab | 15.97 ± 0.37b | 9.77 ± 0.51a | 17.98 ± 1.26b | 12.93 ± 1.39a |
GSI | 6.93 ± 0.55a | 0.07 ± 0.02b | 2.71 ± 0.37c | 2.09 ± 0.61a | 0.10 ± 0.04b | 0.32 ± 0.12ab |
K | 1.41 ± 0.01a | 1.25 ± 0.04bc | 1.20 ± 0.01c | 1.31 ± 0.02a | 1.32 ± 0.02a | 1.15 ± 0.02b |