Columnaris disease (causative agent, Flavobacterium columnare) is an acute-to-chronic bacterial infection with a worldwide distribution capable of infecting most freshwater fishes (Noga 2000). The disease most commonly occurs as an external infection; however, it can also occur as a systemic...
In this bulletin, we summarize the results of a study conducted to demonstrate the effectiveness of CLT to control mortality in late fall Chinook Salmon (CS) Oncorhynchus tshawytscha fingerlings naturally infected with external columnaris disease. (i.e., 50-100 mg/L H2O2 diluted 2:3;...