Fig. 1

Experimental set-up of the laboratory trial. Juvenile lumpfish reared in circular tanks (T) or raceways (R) and at two water exchange rates (high (TH): 1350 L h−1 (RH): 780 L h−1; and low (TL): 450 L h−1; (RL): 260 L h−1) for 66 days

Experimental set-up of the laboratory trial. Juvenile lumpfish reared in circular tanks (T) or raceways (R) and at two water exchange rates (high (TH): 1350 L h−1 (RH): 780 L h−1; and low (TL): 450 L h−1; (RL): 260 L h−1) for 66 days