Nutrient enrichment as a threat to the ecological resilience and health of South African microtidal estuaries

JB Adams, S Taljaard, L Van Niekerk… - African Journal of …, 2020 - Taylor & Francis
Nutrient pollution in South African estuaries is described using a Driver-Pressure-State-
Impact-Response framework. The root cause ('driver') of deteriorating water quality is rapid …

The southern African inland fish tracking programme (FISHTRAC): An evaluation of the approach for monitoring ecological consequences of multiple water resource …

MJ Burnett, GC O'Brien, FJ Jacobs, F Botha, G Jewitt… - Ecological …, 2020 - Elsevier
Fishes are indicators of aquatic ecosystem wellbeing globally and used when
understanding impacts from water resources. The behavioural ecology of fishes as a Line of …

An assessment of the influence of multiple stressors on the Vaal River, South Africa

V Wepener, C Van Dyk, L Bervoets, G O'brien… - … of the Earth, Parts a/b/c, 2011 - Elsevier
The Vaal River is situated in the mining and industrial heartland of South Africa. It is
regarded as a “work horse” river in South Africa and as a consequence it receives treated …

Perfluorinated compounds in the aquatic food chains of two subtropical estuaries

G Fauconier, T Groffen, V Wepener… - Science of the Total …, 2020 - Elsevier
Per-and polyfluoroalkyl substances (PFASs) are ubiquitous in the environment and remain
in largely unknown concentrations and with unknown effects on the African continent. Here …

River connectivity and fish migration considerations in the management of multiple stressors in South Africa

GC O'Brien, M Ross, C Hanzen… - Marine and …, 2019 - CSIRO Publishing
People throughout the world depend on the services we derive from freshwater ecosystems.
Human land-use activities often affect the quality, quantity and habitat of freshwater …

A systematic review of poeciliid fish invasions in Africa

J Pritchard Cairns, PHN de Bragança… - BMC Ecology and …, 2024 - Springer
Background This review compiles and synthesises the existing information concerning non-
native poeciliid introductions to Africa. The recent upsurge in research on invasive poeciliids …

Possible impacts of non-native plant, pathogen, invertebrate and fish taxa on the indigenous ichthyofauna in South African estuaries: A preliminary review

AK Whitfield, JB Adams, TD Harrison, SJ Lamberth… - Biological …, 2021 - Springer
We review the possible impacts of non-native biota on the indigenous fishes of South African
estuaries, including macrophytes, algae, pathogens, invertebrates, and fishes. Freshwater …

Ecosystem health status and trophic modeling of an anthropogenically impacted small tropical estuary along India's west coast

DM Lal, GB Sreekanth, A Shivakrishna… - … Science and Pollution …, 2021 - Springer
The tropical estuaries are characterized with high biological production and also impacted
by anthropogenic activities. Describing these estuaries in terms of ecological data and …

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, 2012 - ajol.info
To maximise the long-term use of limited ecosystem services in South Africa, managers
continually require approaches to optimise the establishment of balances between the use …

Assessing fish community response to water quality and habitat stressors in KwaZulu-Natal, South Africa

W Evans, CT Downs, MJ Burnett… - African Journal of …, 2022 - Taylor & Francis
The degradation of freshwater ecosystems can be attributed to stressors associated with the
increased demand for water and other aquatic resources. Freshwater ecosystems face such …