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The impact of water quality deterioration on macroinvertebrate communities in the Swartkops River, South Africa: a multimetric approach
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ON Odume --- Unilever Centre for Environmental Water Quality, South Africa WJ Muller --- Unilever Centre for Environmental Water Quality, South Africa FO Arimoro --- Unilever Centre for Environmental Water Quality, South Africa CG Palmer --- Unilever Centre for Environmental Water Quality, South AfricaA multimetric approach, using 21 metrics representing five categories — abundance, composition, richness, diversity and biotic indices — was applied to investigate the impacts of water quality deterioration on macro-invertebrate communities in the Swartkops River. Macroinvertebrates were sampled seasonally between... -
Response of instream animal communities to a short-term extreme event and to longer-term cumulative impacts in a strategic water resource area, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SH Foord --- Department of Zoology, Chair in Biodiversity Value and Change, Centre for Invasion Biology, South Africa PSO Fouché --- Department of Zoology, South AfricaDisturbance plays an integral part in generating heterogeneity required for ecosystem persistence, but the increased amplitude and duration of disturbances linked to drivers of global change could result in ecosystem shifts or collapse. Biomonitoring over time provides insights into trajectories...