| The future of fish passage science, engineering, and practice AT Silva, MC Lucas, T Castro‐Santos, C Katopodis, LJ Baumgartner, ... Fish and Fisheries 19 (2), 340-362, 2018 | 456 | 2018 |
| An assessment of the influence of multiple stressors on the Vaal River, South Africa V Wepener, C Van Dyk, L Bervoets, G O’brien, A Covaci, Y Cloete Physics and Chemistry of the Earth, Parts a/b/c 36 (14-15), 949-962, 2011 | 125 | 2011 |
| Animal protein sources as a substitute for fishmeal in aquaculture diets: A systematic review and meta-analysis R Luthada-Raswiswi, S Mukaratirwa, G O’brien Applied sciences 11 (9), 3854, 2021 | 100 | 2021 |
| A regional-scale ecological risk framework for environmental flow evaluations GC O'Brien, C Dickens, E Hines, V Wepener, R Stassen, L Quayle, ... Hydrology and Earth System Sciences 22 (2), 957-975, 2018 | 91 | 2018 |
| Defining and quantifying national-level targets, indicators and benchmarks for management of natural resources to achieve the sustainable development goals C Dickens, V Smakhtin, M McCartney, G O’Brien, L Dahir Sustainability 11 (2), 462, 2019 | 72 | 2019 |
| Regional-scale risk assessment methodology using the Relative Risk Model (RRM) for surface freshwater aquatic ecosystems in South Africa GC O’Brien, V Wepener Water SA 38 (2), 153-166, 2012 | 43 | 2012 |
| Speaking the same language: can the sustainable development goals translate the needs of inland fisheries into irrigation decisions? AJ Lynch, LJ Baumgartner, CA Boys, J Conallin, IG Cowx, CM Finlayson, ... Marine and Freshwater Research 70 (9), 1211-1228, 2019 | 32 | 2019 |
| Macroinvertebrates as indicators of ecological conditions in the rivers of KwaZulu-Natal, South Africa OA Agboola, CT Downs, G O'Brien Ecological indicators 106, 105465, 2019 | 26 | 2019 |
| River connectivity and fish migration considerations in the management of multiple stressors in South Africa GC O’Brien, M Ross, C Hanzen, V Dlamini, R Petersen, GJ Diedericks, ... Marine and Freshwater Research 70 (9), 1254-1264, 2019 | 25 | 2019 |
| Ecological integrity assessment of the fish assemblages of the Matigulu/Nyoni and Umvoti estuaries, KwaZulu-Natal, South Africa GC O'Brien, R Swemmer, V Wepener African Journal of Aquatic Science 34 (3), 293-302, 2009 | 25 | 2009 |
| Socio-ecological system management of the lower Phongolo River and floodplain using relative risk methodology NJ Smit, W Vlok, JHJ Van Vuren, L Du Preez, E Van Eeden, GC O’brien, ... Water Research Commission (WRC) Report, 16, 2016 | 24 | 2016 |
| Characterisation of the social and economic value of the use and associated conservation of the yellowfishes in the Vaal River M Brand, J Maina, M Mander, G O’Brien Water Research Commission report, 2009 | 24 | 2009 |
| Risk assessment of water quantity and quality stressors to balance the use and protection of vulnerable water resources M Wade, GC O'Brien, V Wepener, G Jewitt Integrated Environmental Assessment and Management 17 (1), 110-130, 2021 | 22 | 2021 |
| Bayesian network applications for sustainable holistic water resources management: modeling opportunities for South Africa IH Govender, U Sahlin, GC O'Brien Risk Analysis 42 (6), 1346-1364, 2022 | 21 | 2022 |
| Multiple stressors in African freshwater systems K Fouchy, ME McClain, J Conallin, G O’Brien Multiple stressors in river ecosystems, 179-191, 2019 | 21 | 2019 |
| Macroinvertebrate taxa display increased fidelity to preferred biotopes among disturbed sites in a hydrologically variable tropical river FO Masese, AO Achieng, GC O’Brien, ME McClain Hydrobiologia 848 (2), 321-343, 2021 | 20 | 2021 |
| The southern African inland fish tracking programme (FISHTRAC): An evaluation of the approach for monitoring ecological consequences of multiple water resource stressors … MJ Burnett, GC O'Brien, FJ Jacobs, F Botha, G Jewitt, CT Downs Ecological Indicators 111, 106001, 2020 | 20 | 2020 |
| Development of a water quality index for estuarine water quality management in South Africa V Wepener, DP Cyrus, L Vermeulen, G O’brien, P Wade Water Research Commission, South Africa, 2006 | 18 | 2006 |
| Comparative behavioural assessment of an established and a new tigerfish Hydrocynus vittatus population in two man-made lakes in the Limpopo River catchment … GC O'Brien, JB Bulfin, A Husted, NJ Smit African Journal of Aquatic Science 37 (3), 253-263, 2012 | 17 | 2012 |
| First observation of African tigerfish Hydrocynus vittatus predating on barn swallows Hirundo rustica in flight GC O'Brien, F Jacobs, SW Evans, NJ Smit Journal of fish biology 84 (1), 263-266, 2014 | 16 | 2014 |
