Figure 3.

Individual mass (panel a) and Fulton’s condition factor (K, panel b) of rainbow trout (Oncorhynchus mykiss) fingerlings in Control and Shelter groups during the experimental period. Data represent the mean and SEM of n = 3 tanks per treatment. (a) Individual weight was affected by time (p < 0.001, different letters in the graph indicate significant differences among sampling times), but not by treatment (p = 0.067) or by the interaction time × treatment (p = 0.707). (b) Neither treatment (p = 0.104) nor time (p = 0.407) or their interaction (p = 0.424) affected K (two-way repeated measures ANOVA). No measurements were taken on day 7 due to technical failure of the weighing equipment.