| Standard length (cm) | Nakwa | Brenu |
|---|
| Mean ± SD | Confidence limits | Mean ± SD | Confidence limit |
|---|
| 2.6–3.0 | 3.55 ± 0.00 | | | |
| 3.1–3.5 | 3.74 ± 0.54 | 3.376, 4.094 | | |
| 3.6–4.0 | 4.05 ± 0.39 | 3.947, 4.153 | | |
| 4.1–4.5 | 3.89 ± 0.37 | 3.788, 4.001 | 5.37 ± 0.00 | |
| 4.6–5.0 | 3.97 ± 0.43 | 3.814, 4.128 | 5.85 ± 0.78 | 4.955, 6.753 |
| 5.1–5.5 | 4.07 ± 0.32 | 3.933, 4.203 | 5.28 ± 0.29 | 5.143, 5.416 |
| 5.6–6.0 | 3.90 ± 0.36 | 3.739, 4.066 | 5.27 ± 0.36 | 5.122, 5.415 |
| 6.1–6.5 | 3.76 ± 0.21 | 3.561, 3.951 | 5.48 ± 0.37 | 5.316, 5.638 |
| 6.6–7.0 | 3.76 ± 0.31 | 3.372, 4.151 | 5.38 ± 0.66 | 5.019, 5.745 |
| 7.1–7.5 | 4.50 ± 0.00 | | 5.34 ± 0.47 | 5.151, 5.534 |
| 7.6–8.0 | 3.96 ± 0.00 | | 5.52 ± 0.41 | 5.357, 5.683 |
| 8.1–8.5 | | | 5.56 ± 0.47 | 5.315, 5.809 |
| 8.6–9.0 | 4.3 ± 0.00 | | 5.20 ± 0.53 | 4.829, 5.575 |
| 9.1–9.5 | | | 5.39 ± 0.00 | |
| 9.6–10.0 | | | 4.37 ± 0.00 | |
