Studieswere conducted to determine aspects of water chemistry responsible for large differences in pathogenesis
and mortality rates in experimental challenges of channel catfish Ictalurus punctatus with Flavobacterium
columnare; challenges were conducted in water supplying either the Stuttgart National Aquaculture Research
Center (SNARC) in Stuttgart, Arkansas, or the Warmwater Aquaculture Research Unit (WARU) in Stoneville,
Mississippi