Acute waterborne nickel toxicity in the rainbow trout ( Oncorhynchus mykiss) occurs by a respiratory rather than ionoregulatory mechanism

• Published in: Aquatic toxicology Vol. 63; no. 1; pp. 65 - 82
• Main Authors: Pane, E.F., Richards, J.G., Wood, C.M.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 17.03.2003; Elsevier Science
• Subjects: Acid-Base Equilibrium - drug effects; Agnatha. Pisces; Animal, plant and microbial ecology; Animals; Applied ecology; Biological and medical sciences; Calcium - metabolism; Chloride Channels - drug effects; Ecotoxicology, biological effects of pollution; Effects of pollution and side effects of pesticides on protozoa and invertebrates; Effects of pollution and side effects of pesticides on vertebrates; Environmental Exposure - adverse effects; Freshwater; Fundamental and applied biological sciences. Psychology; Ionoregulation; Lethal Dose 50; Nickel; Nickel - toxicity; Oncorhynchus mykiss; Oncorhynchus mykiss - metabolism; Ontario; Rainbow trout; Respiratory System - drug effects; Respiratory toxicity; Sodium - metabolism; Water Pollutants, Chemical - toxicity; Waterborne; Ontario; Canada, Ontario, Ontario L; Respiratory toxicity; Nickel; Ionoregulation; Rainbow trout; Waterborne; Salmonidae; Ionic regulation; Toxicity; Exposure; Oncorhynchus mykiss; Heavy metal; Freshwater environment; Vertebrata; Lethal dose 50; Pisces; Water pollution; Biological accumulation; Mechanism of action; Respiration

The acute mechanism of toxicity of waterborne nickel (Ni) was investigated in the rainbow trout ( Oncorhynchus mykiss) in moderately hard (∼140 mg l −1 as CaCO 3) Lake Ontario water, where the 96-h LC 50 for juvenile trout (1.5–3.5 g) was 15.3 mg (12.7–19.0, 95% C.L.) dissolved Ni l −1. No marked im...