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  1. No Access

    Article

    Bioaccumulation of manganese in selected tissues of the freshwater crab, Potamonautes warreni (Calman), from industrial and mine-polluted freshwater ecosystems

    Manganese concentrations in water and sediments of the Bronkhorstspruit River, Nooitgedacht Dam and especially in the Natalspruit River, did not fall within stated limits for the protection of aquatic life. Ti...

    V. E. Steenkamp, H. H. du Preez, H. J. Schoonbee, P H. van Eeden in Hydrobiologia (1994)

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    Chapter

    Observations on the use of the Radio-Isotope 32P in the Study of Food Uptake by some Mayflies and other Benthic Macro-Invertebrates in a Laboratory Stream Ecosystem

    A laboratory model stream ecosystem was used to study the transfer of the radio-isotope 32P in a food chain, from the water environment through the benthic algae and submerged vegetation to the primary and second...

    H. J. Schoonbee, J. H. Swanepoel in Advances in Ephemeroptera Biology (1980)