Fig. 2. Variations of mass in control (N=8) and eyestalkless (N=6-11) Astacus leptodactylus before and after molting of all animals at 14 days and 43 days, respectively. Only values of control crayfish that had molted before 35 days are considered. Each column represents the mean ± S.E.M. percentage increase compared with the initial mass (preceding the operation). Statistical comparisons with controls: *P<0.001.

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