Blue Catfish Outproduce Channel Catfish Under Low-D.O. Conditions

摘要

Although there is increasing interest in blue catfish, a potential disadvantage of the fish when compared to channel catfish is their reported poorer tolerance of low dissolved-oxygen concentrations. Studies found that gross and net production were both higher for blue catfish than channel cats reared under lower D.O. concentrations. A clear but not statistically significant trend showed blue catfish consumed more feed than channel catfish at D.O. levels down to 1.4 mg/L.