Genotype-environment interactions for growth and survival of channel catfish (Ictalurus punctatus), blue catfish (Ictalurus furcatus), and channel catfish, I. punctatus, ♀ × blue catfish, I. furcatus, ♂ hybrid fry at varying levels of sodium chlori

Greater Ich resistance of hybrids compared to parents at 0 ppt contradicted earlier reports at older life stages.