Works by Wepener, V.
Results: 50
An assessment of water and sediment quality of aquatic ecosystems within South Africa's largest floodplain.
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- African Journal of Aquatic Science, 2022, v. 47, n. 4, p. 474, doi. 10.2989/16085914.2022.2124946
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The application of Bayesian networks to evaluate risks from multiple stressors to water quality of freshwater ecosystems.
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- African Journal of Aquatic Science, 2022, v. 47, n. 3, p. 231, doi. 10.2989/16085914.2022.2130866
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Ten research questions to support South Africa's Inland Fisheries Policy.
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- African Journal of Aquatic Science, 2021, v. 46, n. 1, p. 1, doi. 10.2989/16085914.2020.1822774
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Interannual variation in metal concentrations in surface waters of the Marico River, South Africa.
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- African Journal of Aquatic Science, 2021, v. 46, n. 1, p. 123, doi. 10.2989/16085914.2020.1773389
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First record of Labeo capensis (Smith, 1841) in the Crocodile River (West) system: another successful non-native freshwater fish introduction in South Africa.
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- African Journal of Aquatic Science, 2019, v. 44, n. 2, p. 177, doi. 10.2989/16085914.2019.1616529
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The spatial ecology of adult Labeobarbus marequensis and their response to flow and habitat variability in the Crocodile River, Kruger National Park.
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- African Journal of Aquatic Science, 2018, v. 43, n. 4, p. 375, doi. 10.2989/16085914.2018.1517077
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Fish and macroinvertebrate community composition of a floodplain wetland associated with the Harts River, South Africa, in relation to water quality and habitat parameters.
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- African Journal of Aquatic Science, 2015, v. 40, n. 3, p. 311, doi. 10.2989/16085914.2015.1076715
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An evaluation of the weight of evidence approach to assess sediment quality in the Mvoti Estuary, KwaZulu-Natal, South Africa.
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- African Journal of Aquatic Science, 2015, v. 40, n. 3, p. 235, doi. 10.2989/16085914.2015.1074881
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The case for environmental flow determination for the Phongolo River, South Africa.
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- African Journal of Aquatic Science, 2015, v. 40, n. 3, p. 269, doi. 10.2989/16085914.2015.1074061
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Application of multivariate statistics and toxicity indices to evaluate the water quality suitability for fish of three rivers in the Kruger National Park, South Africa.
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- African Journal of Aquatic Science, 2015, v. 40, n. 3, p. 247, doi. 10.2989/16085914.2015.1073139
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Influence of selected abiotic factors on aquatic macroinvertebrate assemblages in the Olifants River catchment, Mpumalanga, South Africa.
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- African Journal of Aquatic Science, 2014, v. 39, n. 2, p. 141, doi. 10.2989/16085914.2014.923371
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South African ecotoxicology — present status and future prognosis.
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- African Journal of Aquatic Science, 2012, v. 37, n. 3, p. 229, doi. 10.2989/16085914.2012.717051
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Heavy metal concentrations in the water of the Nyl River system, South Africa.
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- African Journal of Aquatic Science, 2012, v. 37, n. 2, p. 219, doi. 10.2989/16085914.2011.653005
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Pesticides in South African fresh waters.
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- African Journal of Aquatic Science, 2012, v. 37, n. 1, p. 1, doi. 10.2989/16085914.2012.666336
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The influence of biotope and sampling method on the assessment of the invertebrate community structure in endorheic reed pans in South Africa.
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- African Journal of Aquatic Science, 2011, v. 36, n. 1, p. 67, doi. 10.2989/16085914.2011.559705
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Bacterial levels in the Nyl River system, Limpopo province, South Africa.
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- African Journal of Aquatic Science, 2010, v. 35, n. 1, p. 55, doi. 10.2989/16085914.2010.466636
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Anthropogenic spatial and temporal changes in the aquatic macro invertebrate assemblages of the lower Mvoti River, KwaZulu-Natal, South Africa.
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- African Journal of Aquatic Science, 2010, v. 35, n. 1, p. 13, doi. 10.2989/16085914.2010.466638
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Ecological integrity assessment of the fish assemblages of the Matigulu/ Nyoni and Umvoti estuaries, KwaZulu-Natal, South Africa.
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- African Journal of Aquatic Science, 2009, v. 34, n. 3, p. 293, doi. 10.2989/AJAS.2009.34.3.11.987
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Spatial and temporal variation in the macroinvertebrate community structure of the lower Elands River, Mpumalanga, South Africa.
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- African Journal of Aquatic Science, 2009, v. 34, n. 3, p. 231, doi. 10.2989/AJAS.2009.34.3.4.980
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The impact of feedlot effluent on water quality and aquatic macroinvertebrate community structure in streams of the upper Vaal River catchment, South Africa.
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- African Journal of Aquatic Science, 2009, v. 34, n. 3, p. 219, doi. 10.2989/AJAS.2009.34.3.3.979
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Application of a direct toxicity assessment approach to assess the hazard of potential pesticide exposure at selected sites on the Crocodile and Magalies rivers, South Africa.
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- African Journal of Aquatic Science, 2009, v. 34, n. 3, p. 207, doi. 10.2989/AJAS.2009.34.3.2.978
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The sublethal effects of copper and lead on the haematology and acid-base balance of the groovy mullet, Liza dumerili.
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- African Journal of Aquatic Science, 2002, v. 27, n. 1, p. 39, doi. 10.2989/16085914.2002.9626573
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Comparison of the density and species composition of aquatic invertebrates found between the roots of Eichhornia crassipes plants from two coastal lakes in northern KwaZulu-Natal.
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- African Journal of Aquatic Science, 2001, v. 26, n. 1, p. 57, doi. 10.2989/16085910109503725
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Biomarkers in environmental research: fact or fiction?
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- African Journal of Aquatic Science, 2000, v. 25, n. 1, p. 234, doi. 10.2989/160859100780177910
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The efficiency of SASS4 rapid bioassessment in protocol determining the health of aquatic ecosystems: A case study on the Mhlathuze River, KwaZulu-Natal, South Africa.
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- African Journal of Aquatic Science, 2000, v. 25, n. 1, p. 235, doi. 10.2989/160859100780177730
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The sublethal effects of zinc at different water temperatures on selected haematological variables in Oreochromis mossambicus.
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- African Journal of Aquatic Science, 2000, v. 25, n. 1, p. 146, doi. 10.2989/160859100780177659
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Effect of manganese and iron at a neutral and acidic pH on the hematology of the banded tilapia ( Tilapia sparrmanii).
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- Bulletin of Environmental Contamination & Toxicology, 1992, v. 49, n. 4, p. 613, doi. 10.1007/BF00196307
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Human Health Risk from Consumption of Marine Fish Contaminated with DDT and Its Metabolites in Maputo Bay, Mozambique.
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- Bulletin of Environmental Contamination & Toxicology, 2018, v. 100, n. 5, p. 672, doi. 10.1007/s00128-018-2323-7
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Metallothionein Induction as Indicator of Low Level Metal Exposure to Aquatic Macroinvertebrates from a Relatively Unimpacted River System in South Africa.
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- Bulletin of Environmental Contamination & Toxicology, 2017, v. 99, n. 6, p. 662, doi. 10.1007/s00128-017-2201-8
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Aspekte van die ekologiese toestand van die Mvotirivier in die Stanger-omgewing, Kwa-Zulu-Natal.
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- Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, 2008, v. 27, n. 4, p. 44
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Sellulêre energietoekenning in visfamilies van die Okavangorivier, Botswana, tydens die jaarlikse voedingsmigrasie.
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- Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, 2008, v. 27, n. 4, p. 95
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Die invloed van papierpulpmeule-aktiwiteite op die visgemeenskapstruktuur van die Elandsrivier, Mpumalanga.
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- Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, 2008, v. 27, n. 4, p. 83
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An Assessment of Mercury Contamination and the Relationship Between Environmental Variables and Mercury Concentrations in a Seasonal Wetland.
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- Water, Air & Soil Pollution, 2013, v. 224, n. 5, p. 1, doi. 10.1007/s11270-013-1547-8
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Aquatic invertebrate communities of perennial pans in Mpumalanga, South Africa: a diversity and functional approach.
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- African Invertebrates, 2012, v. 53, n. 2, p. 751, doi. 10.5733/afin.053.0212
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The occurrence of large branchiopod crustaceans in perennial pans: a research note.
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- African Zoology, 2011, v. 46, n. 1, p. 176, doi. 10.3377/004.046.0108
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The use of feathers in monitoring bioaccumulation of metals and metalloids in the South African endangered African grass-owl ( Tyto capensis).
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- Ecotoxicology, 2013, v. 22, n. 6, p. 1072, doi. 10.1007/s10646-013-1095-4
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Environmental regulatory awareness of freshwater recreational bank anglers in South Africa.
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- Water SA, 2022, v. 48, n. 4, p. 413, doi. 10.17159/wsa/2022.v48.i4.3986
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A tool for determining maximum sustained swimming ability of selected inland fish species in an Afrotropic ecozone.
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- Water SA, 2018, v. 44, n. 3, p. 511, doi. 10.4314/wsa.v44i3.19
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The strontium isotope distribution in water and fish within major South African catchments.
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- Water SA, 2016, v. 42, n. 2, p. 213, doi. 10.4314/wsa.v42i2.5
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The major and trace element chemistry of fish and lake water within major South African catchments.
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- Water SA, 2016, v. 42, n. 1, p. 112, doi. 10.4314/wsa.v42i1.12
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Preliminary risk assessment of common-use pesticides using PRIMET and PERPEST pesticide risk models in a semi-arid subtropical region.
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- Water SA, 2013, v. 39, n. 5, p. 599, doi. 10.4314/wsa.v39i5.3
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Seasonal variations of water and sediment quality parameters in endorheic reed pans on the Mpumalanga Highveld.
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- Water SA, 2012, v. 38, n. 5, p. 663, doi. 10.4314/wsa.v38i5.3
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Regional-scale risk assessment methodology using the Relative Risk Model (RRM) for surface freshwater aquatic ecosystems in South Africa.
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- Water SA, 2012, v. 38, n. 2, p. 153, doi. 10.4314/wsa.v38i2.1
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The influence of land use on water quality and diatom community structures in urban and agriculturally stressed rivers.
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- Water SA, 2009, v. 35, n. 5, p. 579, doi. 10.4314/wsa.v35i5.49184
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Probabilistic risk assessment of the environmental impacts of pesticides in the Crocodile (west) Marico catchment, North-West Province.
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- Water SA, 2008, v. 34, n. 5, p. 637
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Irrigation water quality and the threat it poses to crop production: evaluating the status of the Crocodile (West) and Marico catchments, South Africa.
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- Environmental Monitoring & Assessment, 2018, v. 190, n. 3, p. 0, doi. 10.1007/s10661-018-6512-y
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Concentrations and human health risk assessment of DDT and its metabolites in free-range and commercial chicken products from KwaZulu-Natal, South Africa.
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- Food Additives & Contaminants. Part A: Chemistry, Analysis, Control, Exposure & Risk Assessment, 2017, v. 34, n. 11, p. 1959, doi. 10.1080/19440049.2017.1357209
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Monitoring Metals in South African Harbours between 2008 and 2009, Using Resident Mussels as Indicator Organisms<sup />.
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- African Zoology, 2020, v. 55, n. 4, p. 267, doi. 10.1080/15627020.2020.1799720
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Using stable δ<sup>13</sup>C and δ<sup>15</sup>N isotopes to assess foodweb structures in an African subtropical temporary pool.
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- African Zoology, 2020, v. 55, n. 1, p. 79, doi. 10.1080/15627020.2020.1731331
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A comparison of aquatic macroinvertebrate and large branchiopod community composition between temporary pans of a conservation area and surrounding communal area in South Africa.
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- African Zoology, 2020, v. 55, n. 1, p. 67, doi. 10.1080/15627020.2020.1724827
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