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Mortality of smolt of Atlantic salmon, Salmo salar L. , at low levels of aluminium in acidic softwater

Journal Article · · Bull. Environ. Contam. Toxicol.; (United States)
DOI:https://doi.org/10.1007/BF01607759· OSTI ID:5414905
;
The level of aluminium toxic to freshwater fish depends on chemical factors, such as pH, calcium concentration, concentrations of ligands and chelators, and degree of chemical stability; on biological factors, such as species, lifestage and physiological status, as well as on temperature. Presmolt of Atlantic salmon (Salmo salar L.) are more sensitive to acidic waters than yearlings and eggs, and also more sensitive than other species of salmonids. Sublethal physiological stress (measured as a depletion of plasma chloride) has been observed in smolts of Atlantic salmon reared in the chronically acid (pH = 4.9-5.4) Lake Liervatn, SW Norway, at labile Al concentrations of 25-50 ..mu..g Al/L. To establish toxic levels of labile Al in this water, the authors exposed sublethally stressed salmon smolts from Lake Liervatn to lake water (pH = 5.07, Ca = 1.3 mg/L, labile Al = 38 ..mu..g Al/L) enriched with inorganic aluminium to three concentration levels of labile Al: 75, 137 and 177 ..mu..g Al/L.
Research Organization:
Directorate for Nature, As-NLH, Norway
OSTI ID:
5414905
Journal Information:
Bull. Environ. Contam. Toxicol.; (United States), Journal Name: Bull. Environ. Contam. Toxicol.; (United States) Vol. 37:2; ISSN BECTA
Country of Publication:
United States
Language:
English

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Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ANADROMOUS FISHES
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHEMISTRY
EUROPE
FISHES
LAKES
MORTALITY
NORWAY
OXYGEN COMPOUNDS
PH VALUE
SALMON
SCANDINAVIA
SURFACE WATERS
VERTEBRATES
WATER CHEMISTRY
WESTERN EUROPE