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  1. Article

    Open Access

    Oxygen consumption rate of Caenorhabditis elegans as a high-throughput endpoint of toxicity testing using the Seahorse XFe96 Extracellular Flux Analyzer

    Caenorhabditis elegans presents functioning, biologically relevant phenotypes and is frequently used as a bioindicator of toxicity. However, most C. elegans in vivo effect-assessment methods are laborious and tim...

    G. Du Preez, H. Fourie, M. Daneel, H. Miller, S. Höss, C. Ricci… in Scientific Reports (2020)

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  2. No Access

    Article

    Human Health Risk from Consumption of Marine Fish Contaminated with DDT and Its Metabolites in Maputo Bay, Mozambique

    Many countries with incidence of malaria, including those surrounding Maputo Bay, use dichloro-diphenyl-trichloroethane (DDT) to reduce mosquitoes. This study is the first to estimate the human health risk ass...

    L. A. Thompson, Y. Ikenaka, Y. B. Yohannes… in Bulletin of Environmental Contamination an… (2018)

  3. No Access

    Article

    Irrigation water quality and the threat it poses to crop production: evaluating the status of the Crocodile (West) and Marico catchments, South Africa

    Ensuring food security is becoming increasingly difficult due to limited freshwater resources. Low-quality irrigation water also poses a severe threat to crop yield and quality. The aim of this study was to ev...

    G. C. du Preez, V. Wepener, H. Fourie… in Environmental Monitoring and Assessment (2018)

  4. No Access

    Article

    Metallothionein Induction as Indicator of Low Level Metal Exposure to Aquatic Macroinvertebrates from a Relatively Unimpacted River System in South Africa

    The Marico River is relatively unaffected by anthropogenic activities. However, metal concentrations—mainly from natural sources—occasionally exceed environmental quality guidelines. Macroinvertebrates are cap...

    M. Kemp, V. Wepener, K. N. de Kock… in Bulletin of Environmental Contamination an… (2017)

  5. No Access

    Article

    The use of feathers in monitoring bioaccumulation of metals and metalloids in the South African endangered African grass-owl (Tyto capensis)

    Few studies have quantified metals in South African species and no published data on residues specifically in South African owl feathers exist. Tyto capensis is listed as vulnerable within South Africa, making it...

    T. M. Ansara-Ross, M. J. Ross, V. Wepener in Ecotoxicology (2013)

  6. No Access

    Article

    An Assessment of Mercury Contamination and the Relationship Between Environmental Variables and Mercury Concentrations in a Seasonal Wetland

    A study was undertaken to assess the extent of mercury contamination in the water and sediment in a seasonal wetland, as well as to determine the relationship between environmental parameters and the distribut...

    LP de Klerk, AR de Klerk, V Wepener in Water, Air, & Soil Pollution (2013)

  7. No Access

    Article

    Effect of manganese and iron at a neutral and acidic pH on the hematology of the banded tilapia (Tilapia sparrmanii)

    V. Wepener, J. H. J. Van Vuren… in Bulletin of Environmental Contamination an… (1992)