Effect of calcium and aluminum concentrations on the survival of brown trout (Salmo trutta) at low pH

Journal Article · Sat Jan 01 00:00:00 EST 1983 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF01610178· OSTI ID:6001749

Brown, D J.A.

In this paper, the results of experiments to determine the survival times of yolk sac fry of brown trout (Salmo trutta) in a range of pHs, calcium and aluminium solutions are described, and the relevance of the results to the field situation is also discussed. In the absence of aluminum, mortalities occur at pH 4.5 only with 0.25 and 0.5 mg 1/sup -1/ of calcium. In solutions containing 0.25 mg 1/sup -1/ of aluminium, however, a complete range of responses is seen, from no or very low survival with 0.25 mg 1/sup -1/ of calcium to almost complete survival with 2.0 mg 1/sup -1/ of calcium. Solutions containing 0.5 mg 1/sup -1/ of aluminium lead to almost complete mortalities with calcium concentrations of 0.25 and 0.5 mg 1/sup -1/ and still significant mortalities at higher calcium concentrations. In general, the effect of pH throughout the range tested is not so marked, but there is a tendency for higher pHs to be more toxic especially in solutions containing 0.5 mg 1/sup -1/ of aluminium.

• Research Organization: C.E.R.L. Freshwater Biology Unit, Nottingham, England
• OSTI ID: 6001749
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Vol. 30
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALUMINIUM
BIOLOGICAL EFFECTS
CALCIUM
PH VALUE
ACID RAIN
BIOASSAY
TOXICITY
TROUT
VARIATIONS
ALKALINE EARTH METALS
ANIMALS
AQUATIC ORGANISMS
ATMOSPHERIC PRECIPITATIONS
ELEMENTS
FISHES
METALS
RAIN
VERTEBRATES
560305* - Chemicals Metabolism & Toxicology- Vertebrates- (-1987)