Helen Dallas
Helen Dallas
Freshwater Research Centre - Director, Nelson Mandela University & University of Cape Town
Verified email at - Homepage
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The effect of water quality variables on riverine ecosystems: a review
HF Dallas, JA Day
Freshwater Research Unit, University of Cape Town, 1993
The effect of water quality variables on aquatic ecosystems
HF Dallas, JA Day
WRC Report No. TT224/04, 2004
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
Critical thermal maxima of aquatic macroinvertebrates: towards identifying bioindicators of thermal alteration
HF Dallas, NA Rivers-Moore
Hydrobiologia 679 (1), 61-76, 2012
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 Science 23 (1), 79-94, 1997
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
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
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
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
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
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
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
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
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
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
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
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
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
Water quality for aquatic ecosystems: tools for evaluating regional guidelines
DEG Dallas HF, Day JA, Musibono DE
Water Research Commission, 1998
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 (1), 231-244, 2007
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