Studies on the Tolerance of Japanese Eel (Anguilla japonica) to Zinc Sulfate

Abstract

The 24, 48 and 96 h TLm (median tolerance limit) values of zinc to Japanese eel were computed at 29, 14 and 11 mg Zn⁺⁺/l, respectively. Fish exposed to sublethal concentrations of zinc, were challenged with Edwardsiella tarda to determine the effect of this stressor on susceptibility to the bacterial pathogen. No difference was found in susceptibility between zinc-exposed and non-exposed fish.