Acclimation-induced changes in the toxicity of zinc and cadmium to rainbow trout

Journal Article · Wed Dec 01 04:00:00 EST 1999 · Environmental Toxicology and Chemistry

DOI:https://doi.org/10.1897/1551-5028(1999)018<2875:AICITT>2.3.CO;2· OSTI ID:20012782

Stubblefield, W A; Steadman, B L; La Point, T W; Bergman, H L

Adults and juvenile rainbow trout exposed for 21 d to sublethal levels of zinc or cadmium exhibited significant changes in their respective incipient lethal levels (ILL). Acclimation resulted in exposure-dependent changes in both tolerance (ILL concentration) and resistance (time to ILL) in both size classes of fish for each metal. The ILLs for adult rainbow trout exposed to zinc increased from 695 {micro}g/L at 131 h for nonacclimated fish to 2,025 {micro}/L at 168 h for fish previously exposed to 0.5 ILL (324 {micro}g/L zinc). The ILLs for cadmium-exposed fish increased from 6 {micro}g/L at 187 h for nonacclimated fish to 122 {micro}g/L at 266 h for fish acclimated to 0.5 ILL (10.2 {micro}g/L cadmium). Similar, although somewhat less dramatic, acclimation responses were observed for juveniles with both zinc and cadmium. Juveniles were found to be approximately three times less sensitive to the toxic effects of the metals than were adult fish.

• Research Organization: ENSR Corp., Fort Collins, CO (US)
• OSTI ID: 20012782
• Journal Information: Environmental Toxicology and Chemistry, Journal Name: Environmental Toxicology and Chemistry Journal Issue: 12 Vol. 18; ISSN ETOCDK; ISSN 0730-7268
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
AGE DEPENDENCE
BIOASSAY
BIOLOGICAL INDICATORS
CADMIUM
TOLERANCE
TROUT
WATER POLLUTION
ZINC