Shell and tissue mass at 12 months from the beginning of the experiment.

Log(shell mass) adjusted to log(dry tissue mass): ANCOVA, Levene's test, P = 0.934, means adjusted to back-transformed covariate value of 0.137 g. Log(tissue mass) adjusted to log(shell length): ANCOVA, Levene's test, P = 0.775, means adjusted to back-transformed covariate value of 20.0 mm. Probabilities for Bonferroni-corrected post-hoc comparisons and back-transformed adjusted means and standard errors are tabulated. F1T = snails of the F1 generation receiving the crab-effluent treatment, F1C = F1 controls, F2T = snails of the F2 generation receiving the crab-effluent treatment, F2C = F2 controls.