Victor Wepener
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View article: Integrating morphology and genetics to resolve the first reptilian liolopid life cycle in Africa, <i>Paraharmotrema karinganiense</i> (Digenea: Liolopidae)
Integrating morphology and genetics to resolve the first reptilian liolopid life cycle in Africa, <i>Paraharmotrema karinganiense</i> (Digenea: Liolopidae) Open
View article: Growth and bioaccumulation of trace elements in economically important fish from contrastingly impacted impoundments
Growth and bioaccumulation of trace elements in economically important fish from contrastingly impacted impoundments Open
Environmental conditions and species-specific adaptations influence fish growth and trace element bioaccumulation. The present study focused on three economically important fish species, Cyprinus carpio, Clarias gariepinus and Oreochromis …
View article: Effects of imidacloprid on Afrotropical aquatic ecosystems: a South African microcosm study
Effects of imidacloprid on Afrotropical aquatic ecosystems: a South African microcosm study Open
Pesticides are widely used to meet the food demands of a growing population, with various types used to control pests depending on the crops grown. Rainfall, overspray, and runoff from agricultural fields can wash these insecticides into w…
View article: Investigating the research landscape of chlorinated paraffins over the past ten decades
Investigating the research landscape of chlorinated paraffins over the past ten decades Open
Chlorinated paraffins (CPs) are classified as emerging persistent organic pollutants (POPs). Due to their associated environmental and health impacts, these groups of chemicals have been a subject of interest among researchers in the past …
View article: Environmental Parasitology: Interactions Between Parasites and Pollutants
Environmental Parasitology: Interactions Between Parasites and Pollutants Open
View article: CompSafeNano project: NanoInformatics approaches for safe-by-design nanomaterials
CompSafeNano project: NanoInformatics approaches for safe-by-design nanomaterials Open
View article: Exploring South Africa's hidden marine parasite diversity: two new marine <i>Ergasilus</i> species (Copepoda: Cyclopoida: Ergasilidae) from the Evileye blaasop, <i>Amblyrhynchote honckenii</i> (Bloch)
Exploring South Africa's hidden marine parasite diversity: two new marine <i>Ergasilus</i> species (Copepoda: Cyclopoida: Ergasilidae) from the Evileye blaasop, <i>Amblyrhynchote honckenii</i> (Bloch) Open
Marine parasites remain understudied in South Africa with little information available on their diversity and the effects these parasites may have on their hosts. This is especially true for parasitic copepods within the family Ergasilidae…
View article: Elements in Invasive Redclaw Crayfish Cherax quadricarinatus Pose Human Health Risks in the Largest Floodplain System of South Africa
Elements in Invasive Redclaw Crayfish Cherax quadricarinatus Pose Human Health Risks in the Largest Floodplain System of South Africa Open
View article: Sizes, Shapes, and Types of Nanomaterials
Sizes, Shapes, and Types of Nanomaterials Open
Nanomaterials are tiny particles, made by breaking down bulk products or by grouping atoms, to form small things, called nanoparticles. Nanoparticles have a size of 1–100 nm, so a person can only see them with a powerful microscope, as the…
View article: Corrigendum to <Effect of an antidepressant on aquatic ecosystems in the presence of microplastics: A mesocosm study> [Environ. Pollut. 357 (2024) 124439]
Corrigendum to [Environ. Pollut. 357 (2024) 124439] Open
View article: Effect of an antidepressant on aquatic ecosystems in the presence of microplastics: A mesocosm study
Effect of an antidepressant on aquatic ecosystems in the presence of microplastics: A mesocosm study Open
View article: Distribution, abundance, population structures, and potential impacts of the invasive snail, <i>Tarebia granifera</i> in aquatic ecosystems of north‐eastern South Africa
Distribution, abundance, population structures, and potential impacts of the invasive snail, <i>Tarebia granifera</i> in aquatic ecosystems of north‐eastern South Africa Open
Aquatic ecosystems globally have been invaded by molluscs. Tarebia granifera is a highly successful invader, often becoming the dominant aquatic invertebrate species in an invaded ecosystem. Resultingly, it has been suggested that T. grani…
View article: Element contamination of the Orange-Vaal River basin, South Africa: a One Health approach
Element contamination of the Orange-Vaal River basin, South Africa: a One Health approach Open
View article: Effects of river regulation on aquatic invertebrate community composition: A comparative analysis in two southern African rivers
Effects of river regulation on aquatic invertebrate community composition: A comparative analysis in two southern African rivers Open
While natural floods play a crucial role in shaping the composition of aquatic communities, the most rivers worldwide are regulated or dammed for anthropogenic purposes, resulting in alterations to the biological and chemical composition o…
View article: Assessment of human health risks through the consumption of mercury contaminated fish from gold and platinum mining areas
Assessment of human health risks through the consumption of mercury contaminated fish from gold and platinum mining areas Open
Mining activities can pollute freshwater systems with toxic contaminants that can damage the environment and cause risks to human health. In South Africa, mercury is a contaminant of major concern due to it being released into the environm…
View article: Review of scientific literature on available methods of assessing organochlorine pesticides in the environment
Review of scientific literature on available methods of assessing organochlorine pesticides in the environment Open
Organochlorine pesticides (OCPs) are persistent organic pollutants (POPs) widely used in agriculture and industry, causing serious health and ecological consequences upon exposure. This review offers a thorough overview of OCPs analysis em…
View article: Element Concentrations in Muscle and Liver Tissue of Two Eel Species from the Incomati River, Mozambique
Element Concentrations in Muscle and Liver Tissue of Two Eel Species from the Incomati River, Mozambique Open
View article: Effects of river regulation on aquatic invertebrate community composition: a comparative analysis
Effects of river regulation on aquatic invertebrate community composition: a comparative analysis Open
Although natural flooding plays a crucial role in shaping the composition of aquatic communities, most rivers around the world have been regulated or dammed for anthropogenic purposes. This affects the biological and chemical composition o…
View article: A stable isotope analysis of the dietary patterns of the aquatic apex predator, the African tigerfish (<i>Hydrocynus vittatus</i>)
A stable isotope analysis of the dietary patterns of the aquatic apex predator, the African tigerfish (<i>Hydrocynus vittatus</i>) Open
Stable isotope analyses, specifically δ 13 C and δ 15 N, are useful tools increasingly used to understand ecosystem function, food web structures, and consumer diets. Although the iconic tigerfish Hydrocynus vittatus is regarded as an apex…
View article: Using Confocal Microscopy and Pigment Analyses to Detect Adverse Insecticide Effects in non-target Freshwater Diatom species - a proof-of-concept Using Nitzschia palea
Using Confocal Microscopy and Pigment Analyses to Detect Adverse Insecticide Effects in non-target Freshwater Diatom species - a proof-of-concept Using Nitzschia palea Open
The persistence of insecticides in aquatic environments is a cause of concern and to date hardly any studies have focused on the effects that DDT and deltamethrin have on non-target freshwater diatom communities. The application of diatoms…
View article: Limpopo e-flow water quality
Limpopo e-flow water quality Open
Water quality of the Limpopo Basin
View article: Bioaccumulation and trophic transfer of total mercury through the aquatic food webs of an African sub-tropical wetland system
Bioaccumulation and trophic transfer of total mercury through the aquatic food webs of an African sub-tropical wetland system Open
Anthropogenic activities, including combustion of fossil fuels, coal, and gold mining, are significant sources of mercury (Hg) emissions into aquatic ecosystems. South Africa is a major contributor to global Hg emissions (46.4 tons Hg in 2…
View article: Influence of different functionalized CdTe quantum dots on the accumulation of metals, developmental toxicity and respiration in different development stages of the zebrafish (Danio rerio)
Influence of different functionalized CdTe quantum dots on the accumulation of metals, developmental toxicity and respiration in different development stages of the zebrafish (Danio rerio) Open
Introduction: The bioaccumulation and differential effects of cadmium tellurium quantum dot (CdTe QDs) nanomaterials with different functional groups are poorly understood in aquatic organisms. This study aimed to investigate the metal upt…
View article: Current situation and future prognosis of health, safety and environment risk assessment of nanomaterials in South Africa
Current situation and future prognosis of health, safety and environment risk assessment of nanomaterials in South Africa Open
The commercialisation and everyday use of nanomaterials and nanomaterial-enabled products (NEPs) is rising year-on-year. Responsible development of nanotechnology includes understanding their potential implications on health, safety, and t…
View article: Investigation of dichlorodiphenyltrichloroethane (DDT) on xenobiotic enzyme disruption and metabolomic bile acid biosynthesis in DDT-sprayed areas using wild rats
Investigation of dichlorodiphenyltrichloroethane (DDT) on xenobiotic enzyme disruption and metabolomic bile acid biosynthesis in DDT-sprayed areas using wild rats Open
Dichlorodiphenyltrichloroethane (DDT) is an organochlorine insecticide used worldwide. Several studies have reported the toxic effects of DDT and its metabolites on steroid hormone biosynthesis; however, its environmental effects are not w…
View article: Environmental regulatory awareness of freshwater recreational bank anglers in South Africa
Environmental regulatory awareness of freshwater recreational bank anglers in South Africa Open
Freshwater recreational angling is growing in popularity internationally. Due to the potential negative environmental impacts, various regulatory systems exist. In South Africa, freshwater recreational angling is regulated through a comple…
View article: An assessment of water and sediment quality of aquatic ecosystems within South Africa’s largest floodplain
An assessment of water and sediment quality of aquatic ecosystems within South Africa’s largest floodplain Open
Ndumo Game Reserve (NGR), a Ramsar site, situated in South Africa’s largest floodplain (Phongolo River floodplain) in northern KwaZulu-Natal, with important aquatic ecosystems: the Usuthu and Phongolo rivers and their associated floodplain…
View article: The application of Bayesian networks to evaluate risks from multiple stressors to water quality of freshwater ecosystems
The application of Bayesian networks to evaluate risks from multiple stressors to water quality of freshwater ecosystems Open
It is difficult to predict and manage the ecological consequences of multiple water quality stressors on our freshwater systems. This is due to the dynamism of the source-stressor-response relationships and multiple factors including lack …
View article: Editorial: Nature conservation, biodiversity protection and ecological risk assessment: Three worlds apart in need of connection
Editorial: Nature conservation, biodiversity protection and ecological risk assessment: Three worlds apart in need of connection Open
EDITORIAL article Front. Environ. Sci., 03 October 2022Sec. Toxicology, Pollution and the Environment Volume 10 - 2022 | https://doi.org/10.3389/fenvs.2022.1044494
View article: First record of organochlorine pesticides in blood of wild and captive African leopards, Panthera pardus pardus (Linnaeus, 1758)
First record of organochlorine pesticides in blood of wild and captive African leopards, Panthera pardus pardus (Linnaeus, 1758) Open
Compared to aquatic ecosystems, limited information exists on organochlorine accumulation in terrestrial ecosystems, and this is specifically true for terrestrial carnivores that have received limited attention in terms of studies on pollu…