Copper as an initiating factor of vibriosis (Vibrio anguillarum) in eel (Anguilla anguilla)

Authors:
  • RØRødsæther
    Rødsæther
  • MCMarianne C.
    Marianne C.
  • JOJan Olafsen
    Jan Olafsen
  • JRJan Raa
    Jan Raa
  • KMKjell Myhre
    Kjell Myhre
  • JSJohan B. Steen
    Johan B. Steen

Abstract
Eels (Anguilla anguilla) which were exposed to copper‐contaminated fresh water (30–60 ρg Cu/I) died with signs of vibriosis (Vibrio anguillarum). Eels kept in non‐contaminated fresh water (V. anguillarum was shown to be present in the eels with symptoms of vibriosis. We suggest V. anguillarum is a common inhabitant of eels and copper can change a commensal association between fish and bacterium to one of pathogenicity.

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