| Histological changes in the liver of Oreochromis mossambicus (Cichlidae) after exposure to cadmium and zinc JC Van Dyk, GM Pieterse, JHJ Van Vuren Ecotoxicology and environmental safety 66 (3), 432-440, 2007 | 390 | 2007 |
| Histological evidence of intersex in feral sharptooth catfish (Clarias gariepinus) from an estrogen‐polluted water source in Gauteng, South Africa IEJ Barnhoorn, MS Bornman, GM Pieterse, JHJ Van Vuren Environmental Toxicology: An International Journal 19 (6), 603-608, 2004 | 152 | 2004 |
| Histopathological alterations in the liver of the sharptooth catfish Clarias gariepinus from polluted aquatic systems in South Africa MJ Marchand, JC Van Dyk, GM Pieterse, IEJ Barnhoorn, MS Bornman Environmental Toxicology: An International Journal 24 (2), 133-147, 2009 | 109 | 2009 |
| Liver histopathology of the sharptooth catfish Clarias gariepinus as a biomarker of aquatic pollution JC Van Dyk, MJ Cochrane, GM Wagenaar Chemosphere 87 (4), 301-311, 2012 | 102 | 2012 |
| A histology-based fish health assessment of four commercially and ecologically important species from the Okavango Delta panhandle, Botswana JC Van Dyk, MJ Marchand, NJ Smit, GM Pieterse African Journal of Aquatic Science 34 (3), 273-282, 2009 | 94 | 2009 |
| Organochlorine pesticide levels in Clarias gariepinus from polluted freshwater impoundments in South Africa and associated human health risks IEJ Barnhoorn, JC Van Dyk, B Genthe, WR Harding, GM Wagenaar, ... Chemosphere 120, 391-397, 2015 | 70 | 2015 |
| Intersex in feral indigenous freshwater Oreochromis mossambicus, from various parts in the Luvuvhu River, Limpopo Province, South Africa IEJ Barnhoorn, JC Van Dyk, GM Pieterse, MS Bornman Ecotoxicology and Environmental Safety 73 (7), 1537-1542, 2010 | 61 | 2010 |
| A histo‐morphological study of the testis of the sharptooth catfish (Clarias gariepinus) as reference for future toxicological assessments JC Van Dyk, GM Pieterse Journal of Applied Ichthyology 24 (4), 415-422, 2008 | 59 | 2008 |
| Histopathological changes in two potential indicator fish species from a hyper-eutrophic freshwater ecosystem in South Africa: a baseline study MJ Marchand, JC Van Dyk, IEJ Barnhoorn, GM Wagenaar African Journal of Aquatic Science 37 (1), 39-48, 2012 | 48 | 2012 |
| Histological changes in the gills of Clarias gariepinus (Teleostei: Clariidae) from a polluted South African urban aquatic system JC Van Dyk, MJ Marchand, GM Pieterse, IEJ Barnhoorn, MS Bornman African Journal of Aquatic Science 34 (3), 283-291, 2009 | 44 | 2009 |
| Preliminary results on sperm motility and testicular histology of two feral fish species, Oreochromis mossambicus and Clarias gariepinus, from a currently DDT … MJ Marchand, GM Pieterse, IEJ Barnhoorn Journal of Applied Ichthyology 24 (4), 423-429, 2008 | 44 | 2008 |
| Endocrine disruptors and health effects in Africa: a call for action MS Bornman, NH Aneck-Hahn, C De Jager, GM Wagenaar, H Bouwman, ... Environmental health perspectives 125 (8), 085005, 2017 | 33 | 2017 |
| Histopathological Changes in the Testis of Oreochromis Mossambicus (Cichlidae) as a Biomarker of Heavy Metal Pollution GM Pieterse PQDT-Global, 2008 | 32 | 2008 |
| The potential effects of efavirenz on Oreochromis mossambicus after acute exposure L Robson, IEJ Barnhoorn, GM Wagenaar Environmental Toxicology and Pharmacology 56, 225-232, 2017 | 28 | 2017 |
| Histological alterations in the testes and ovaries of the sharptooth catfish (Clarias gariepinus) from an urban nature reserve in South Africa GM Pieterse, MJ Marchand, JC Van Dyk, IEJ Barnhoorn Journal of Applied Ichthyology 26 (5), 789-793, 2010 | 27 | 2010 |
| Age estimation, growth rate and size at sexual maturity of tigerfish Hydrocynus vittatus from the Okavango Delta, Botswana R Gerber, NJ Smit, GM Pieterse, D Durholtz African Journal of Aquatic Science 34 (3), 239-247, 2009 | 25 | 2009 |
| A qualitative and quantitative assessment of the normal histology of selected target organs of Clarias gariepinus and Oreochromis mossambicus JC Van Dyk University of Johannesburg, 2006 | 23 | 2006 |
| Sperm motility and testicular histology as reproductive indicators of fish health of two feral fish species from a currently DDT sprayed area, South Africa MJ Marchand, GM Pieterse, IEJ Barnhoorn Journal of Applied Ichthyology 26 (5), 707-714, 2010 | 19 | 2010 |
| Fish histopathology as a monitoring tool for aquatic health: a preliminary investigation JC Van Dyk Rand Afrikaans University, 2003 | 15 | 2003 |
| The effects of environmentally relevant concentrations of aldrin and methoxychlor on the testes and sperm of male Clarias gariepinus (Burchell, 1822) after short-term exposure J Das Neves, IEJ Barnhoorn, GM Wagenaar Fish physiology and biochemistry 44 (6), 1421-1434, 2018 | 14 | 2018 |
Irene BarnhoornProfessor of ZoologyVerified email at univen.ac.za
