| The effect of water quality variables on aquatic ecosystems HF Dallas, JA Day WRC Report No. TT224/04, 2004 | 309* | 2004 |
| The effect of water quality variables on riverine ecosystems: a review HF Dallas, JA Day Freshwater Research Unit, University of Cape Town, 1993 | 265 | 1993 |
| Water temperature and riverine ecosystems: An overview of knowledge and approaches for assessing biotic responses, with special reference to South Africa H Dallas Water Sa 34 (3), 393-404, 2008 | 181 | 2008 |
| Critical thermal maxima of aquatic macroinvertebrates: towards identifying bioindicators of thermal alteration HF Dallas, NA Rivers-Moore Hydrobiologia 679, 61-76, 2012 | 161 | 2012 |
| Ecological consequences of global climate change for freshwater ecosystems in South Africa HF Dallas, N Rivers-Moore South African Journal of Science 110 (5-6), 01-11, 2014 | 131 | 2014 |
| A preliminary evaluation of aspects of SASS (South African Scoring System) for the rapid bioassessment of water quality in rivers, with particular reference to the … HF Dallas Southern African Journal of Aquatic Sciences 23 (1), 79-94, 1997 | 131 | 1997 |
| Sublethal effects of temperature on freshwater organisms, with special reference to aquatic insects HF Dallas, V Ross-Gillespie Water Sa 41 (5), 712-726, 2015 | 113 | 2015 |
| River health programme: South African scoring system (SASS) data interpretation guidelines HF Dallas Report produced for the Department of Water Affairs and Forestry (Resource …, 2007 | 104 | 2007 |
| Bioassessment of the ecological integrity of river ecosystems using aquatic macroinvertebrates: an overview with a focus on South Africa DJ Ollis, HF Dallas, KJ Esler, C Boucher African Journal of Aquatic Science 31 (2), 205-227, 2006 | 100 | 2006 |
| Multi‐scale assessment of macroinvertebrate richness and composition in Mediterranean‐climate rivers N Bonada, M Rieradevall, H Dallas, J Davis, J Day, R Figueroa, VH Resh, ... Freshwater Biology 53 (4), 772-788, 2008 | 99 | 2008 |
| Tanzania River Scoring System (TARISS): a macroinvertebrate-based biotic index for rapid bioassessment of rivers LT Kaaya, JA Day, HF Dallas African Journal of Aquatic Science 40 (2), 109-117, 2015 | 91 | 2015 |
| Ecological status assessment in mediterranean rivers: complexities and challenges in developing tools for assessing ecological status and defining reference conditions HF Dallas Hydrobiologia 719 (1), 483-507, 2013 | 74 | 2013 |
| The influence of biotope availability on macroinvertebrate assemblages in South African rivers: implications for aquatic bioassessment HF Dallas Freshwater biology 52 (2), 370-380, 2007 | 72 | 2007 |
| Seasonal variability of macroinvertebrate assemblages in two regions of South Africa: implications for aquatic bioassessment HF Dallas African Journal of Aquatic Science 29 (2), 173-184, 2004 | 70 | 2004 |
| Upper thermal limits of aquatic macroinvertebrates: comparing critical thermal maxima with 96-LT50 values HF Dallas, ZA Ketley Journal of Thermal Biology 36 (6), 322-327, 2011 | 67 | 2011 |
| Towards setting environmental water temperature guidelines: A South African example NA Rivers-Moore, HF Dallas, C Morris Journal of environmental management 128, 380-392, 2013 | 59 | 2013 |
| A comparison of rapid bioassessment protocols used in 2 regions with Mediterranean climates, the Iberian Peninsula and South Africa N Bonada, H Dallas, M Rieradevall, N Prat, J Day Journal of the North American Benthological Society 25 (2), 487-500, 2006 | 56 | 2006 |
| Natural variation in macroinvertebrate assemblages and the development of a biological banding system for interpreting bioassessment data—a preliminary evaluation using data … HF Dallas, JA Day Hydrobiologia 575, 231-244, 2007 | 49 | 2007 |
| Spatial variability in macroinvertebrate assemblages: comparing regional and multivariate approaches for classifying reference sites in South Africa HF Dallas African Journal of Aquatic Science 29 (2), 161-171, 2004 | 48 | 2004 |
| Water quality for aquatic ecosystems: tools for evaluating regional guidelines DEG Dallas HF, Day JA, Musibono DE Water Research Commission, 1998 | 48* | 1998 |
