Browsing by Author "Day, J A"

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    Toxicological studies of the combined effects of aluminium, copper and manganese on a freshwater amphipod in acidic waters
    (1998) Musibono, Diudonné-Athanase Eyul'anki-Ekwalang'Ayor; Day, J A
    This thesis describes the combined toxicity in aqueous solutions of three common metals (Al, Cu and Mn) on the endemic freshwater amphipod Paramelita nigroculos (Barnard) from the south-western Cape region of South Africa. The aims of the work were three-fold: to examine the toxic effects of combinations of the three metals; to investigate such effects on an indigenous aquatic organism; and, to investigate eh adequacy of the South African "Guidelines for aquatic ecosystems", which are derived from the data based on the effects of individual elements.