United States Department of Agriculture
Agricultural Research Service
Channel X blue hybrid catfish appear similar to pure channel catfish but
may prove to be an overall better fish to rear commercially. These
market-size fish were produced in only 18 months from egg.
By counting the opaque glass pellets visible in x-rayed catfish, scientists
can calculate the amount of feed the fish have consumed.
A channel catfish with small bumps and inflammation on its tailfin, which
indicate the presence of Bolbophorus flatworms beneath the skin.