Table 1. Comparison of in-vivo and theoretical bite forces (BF) derived from adductor mandibulae (AM) physiology and lower jaw morphometrics for Serrasalmus rhombeus (N = 6).
| TL (mm) | Body Mass (g) | AM (g) | AM CSA (cm2) | MA (jaw tip) | In Vivo Max BF (N)* | Anterior BF (N)* | Mid-Jaw BF (N) |
|---|---|---|---|---|---|---|---|
| 365 | 1130 | 24.7 | 21.0 | 0.51 | 306.93 | 311.3 | 631.2 |
| 368 | 1120 | 26.5 | 23.5 | 0.46 | 320.27 | 287.6 | 559.7 |
| 295 | 600 | 14.5 | 14.1 | 0.47 | 235.76 | 156.9 | 269.7 |
| 322 | 850 | 18.9 | 18.2 | 0.51 | 155.69 | 218.4 | 402.3 |
| 210 | 220 | 5.7 | 7.7 | 0.48 | 84.51 | 72.3 | 123.6 |
| 240 | 280 | 6.3 | 6.9 | 0.47 | 97.86 | 76.2 | 139.7 |
*BF not significantly different: ANCOVA (t-ratio df = 2,11 = 0.65, p = 0.531).