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Table 2 The mandibular measurements of surface control, Tinaja cavefish, F1 hybrids and surgery and non-surgery sides of the surgery fish

From: Adaptive evolution of the lower jaw dentition in Mexican tetra (Astyanax mexicanus)

Group Rostral width (Distance A) Side length (Distance B) Rostral bone width (Distance C) Caudal bone width(Distance A)
Surface (n = 8) 3.07 ± 0.56 4.03 ± 0.47 0.76 ± 0.13 0.25 ± 0.07
Tinaja Cavefish (n = 8) 4.20 ± 0.98 4.38 ± 0.77 0.68 ± 0.91 0.21 ± 0.04
F1 hybrids (n = 6) 4.08 ± 0.65 4.29 ± 0.65 0.84 ± 0.11 0.19 ± 0.12
Surgery surgery side (n=5) 3.00 ± 0.64 3.43 ± 0.36 0.62 ± 0.07 0.23 ± 0.12
Surgery non-surgery side (n=5)   3.23 ± 0.56 0.66 ± 0.07 0.23 ± 0.09
Statistical analysis
(one way ANOVA)
P <0.05 P <0.05 P <0.05 P <0.05
Tukey HSD
95% significance
Surface and F1-hybrids,
surgery and F1-hybrids
Surface and surgery side,
surface and non-surgery side,
surgery side and F1-hybrids,
surgery side and cavefish,
F1-hybrids and non-surgery side,
cavefish and non-surgery side
F1-hybrids and cavefish
Cavefish and non-surgery side
none
  1. See Figure 2 for details of each measurement. Measurements are in mm. Averages ± standard deviations are given. ANOVA, analysis of variance; HSD honest significant difference.