highly significantp < 0.0001
Condition factor was determined for each fish sampled throughout the study and was significantly affected by date (F (5,198) = 3.423, p < 0.01) and the interaction between date and photoperiod regime (F (10, 198) = 3.159, p < 0.001) with a highly significant decline observed following transfer from SP to LL from 1.371 ± 0.037 to 1.12 ± 0.016 (p < 0.0001).