The authors conducted a study to determine whether channel catfish systematically develop off-flavors after partial harvest as well as the possible origins of the flavors.
Craig S. Tucker
The split-pond culture system offers several advantages over traditional fish ponds. Aerating the small fish-confinement area is more effective at maintaining adequate levels of dissolved oxygen than in traditional ponds.
Sodium bicarbonate is a useful chemical in recirculating aquaculture systems and fish transport tanks. However, two common uses of the compound in pond culture – to remove carbon dioxide and treat off-flavors – do not work.
Although causes of pre-harvest off-flavors in catfish differ due to climate, water quality and pond hydrology, blue-green algae is a common culprit.
Pond water level management can reduce overflow volume and ground water use. Implementing BMPs reduces pollutant discharge.
The potential yield of catfish from earthen ponds is high, but several factors limit production under commercial conditions.