Columnaris disease of fish «Review»

Columnaris disease in fish: a review with emphasis on bacterium-host interactions

Flavobacterium columnare (F. columnare) is the causative agent of columnaris disease. This bacterium affects both cultured and wild freshwater fish including many susceptible commercially important fish species. F. columnare infections may result in skin lesions, fin erosion and gill necrosis, with a high degree of mortality, leading to severe economic losses. Especially in the last decade, var...

Columnaris Disease of Fishes

Intensive fish farming and the evolution of pathogen virulence: the case of columnaris disease in Finland.

Ecological changes affect pathogen epidemiology and evolution and may trigger the emergence of novel diseases. Aquaculture radically alters the ecology of fish and their pathogens. Here we show an increase in the occurrence of the bacterial fish disease Flavobacterium columnare in salmon fingerlings at a fish farm in northern Finland over 23 years. We hypothesize that this emergence was owing t...

Novel treatment methods of columnaris disease

Columnaris disease, caused by Flavobacterium columnare, is an urgent problem in Finnish fish farming. The occurrence of disease outbreaks has increased significantly at fish farms producing salmonid fingerlings in the inland freshwater area. The reasons for this are unclear, but we have previously suggested that the ecological and epidemiological factors of intensive farming, together with clim...

Columnaris Disease: A Bacterial Infection Caused by Flavobacterium columnare

Columnaris disease is the second leading cause of mortality in pond raised catfish in the southeastern United States. It is second only to enteric septicemia of catfish (ESC) caused by the bacterium Edwardsiella ictaluri. Most species of fish are susceptible to columnaris following some type of environmental stress and when water temperatures are in the upper part of their preferred temperature...