Table 2. Lever arm ratios (mean ± standard error) calculated for four muscles associated with the pelvic sucking disk in Sicyopterus stimpsoni, with ANOVA comparison of differences in each muscle across collecting localities.
|
Levator Ratio
|
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|---|---|---|---|---|---|---|---|
| Nanue stream segment | Length (m) | Elevation, low-high (m) | Body mass (g) (N) | Protractor ischii | Retractor ischii | Abductor pelvicus complex | Adductor pelvicus complex |
| 1 | 400 | 0-23 | 2.61±0.93 (22) | 0.180±0.031 | 0.489±0.045 | 0.127±0.015 | 0.136±0.016 |
| 2 | 325 | 99-145 | 3.06±1.31 (22) | 0.174±0.025 | 0.481±0.056 | 0.126±0.020 | 0.135±0.017 |
| 3 | 260 | 175-191 | 3.47±1.24 (16) | 0.164±0.040 | 0.458±0.040 | 0.134±0.019 | 0.146±0.020 |
| 4 | 120 | 209-225 | 4.39±1.82 (10) | 0.167±0.025 | 0.474±0.044 | 0.126±0.014 | 0.140±0.013 |
| p = 0.235 | p = 0.200 | p = 0.459 | p = 0.164 | ||||
| F = 1.452 | F = 1.587 | F = 0.874 | F = 1.748 | ||||