Abstract
Laboratory studies were conducted to test the ability of brook charr (Salvelinus fontinalis) alevins,;the earliest free-swinming life stage of the species, to detect and avoid toxic levels of H+ and inorganic Al. Alevins were tested in steep gradient choice tanks using a range of H+ (pH 4.0 to 5.5) and Al (0 to 500 µg L−1) concentrations in low Ca (2.0 mg L−l) water. The young brook charr actively avoided acidic water with a pH < 5.0. Aluminum additions of 500 µg L−1 increased the avoidance response. The observed behavioral response of alevins to low pH and elevated levels of Al, may be of significant adaptive advantage in systems undergoing acidification.
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© 1986 Springer Science+Business Media Dordrecht
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Gunn, J.M., Noakes, D.L.G. (1986). Avoidance of Low pH and Elevated Al Concentrations by Brook Charr (Salvelinus fontinalis) Alevins in Laboratory Tests. In: Martin, H.C. (eds) Acidic Precipitation. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3385-9_48
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DOI: https://doi.org/10.1007/978-94-009-3385-9_48
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