Anguilla anguillaL. Stress Biomarkers Recovery in Clean Water and Secondary-Treated Pulp Mill Effluent

Abstract

The eels’ recovery from capture, anoxia, and transport is improved by the dechlorinated filtered aerated tap water temperature increase and increased water salinity. The eels’ 6-hr recovery from capture, anoxia, and transport, at 25°C in 50% secondary-treated bleached kraft pulp mill effluent, as plasma lactate and cortisol uptake, is depressed. However, either farm or wild eels’ exposure to the 50% secondary-treated bleached kraft pulp mill effluent, after 188 hr recovery from capture, anoxia, and transport, induces plasma lactate increase and prevents interrenal cortisol release to the blood, decreasing its plasma concentration.