Figure 2.

Tube foot mechanical properties (mean ± SD, n = 3) of Paracentrotus lividus per treatment at weeks 1 (w1) and 8 (w8). (a) Breaking force (N), (b) S _CT: cross‐sectional surface area of the stem connective tissue layer (µm²), (c) extensibility (unitless), (d) tensile strength (MPa), (e) stiffness (MPa), and (f) toughness (MJ/m³). Significant differences between treatments for w1 or w8 are indicated by lowercase or uppercase letters, respectively; means sharing the same letter are not significantly different (p‐Tukey ≥ .05)