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Browsing by Subject "Aquatic ecosystems"

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Aquatic ecosystems in the coal mining landscape of the upper Olifants River, and the way forward

Author: Oberholster, Paul J ; De Klerk, Arno R Date: Mar 2014 Although coal mining can bring economic benefits by stimulating the local economy of the upper Olifants River catchment and creating more employment opportunities, it can also have adverse effects on the aquatic ecosystems of this catchment. ... Read more
Development of pesticide use maps for South Africa

Author: Dabrowski, James M Date: Jan 2015 Over 3000 pesticides are registered for use in South Africa. Many studies have highlighted the movement of pesticides to agricultural crops from the point of application into non-target environments, particularly surface and groundwater ... Read more
Discovering the secrets of the Olifants sediments

Author: Petersen, C ; Jovanovic, Nebojsa ; Genthe, Bettina Date: Jul 2012 The polluted Upper Olifants River, in Mpumalanga, has been the focus for many studies in recent years. However, a group of researchers from the CSIR are now also studying an element of the system which has to date been largely overlooked, ... Read more
Ecological Reserve: Towards a common understanding for river management in South Africa

Author: Van Wyk, E ; Breen, CM ; Roux, DJ ; Rogers, KH ; Sherwill, T ; Van Wilgen, BW Date: Jul 2006 The legal requirement for an Ecological Reserve established in South Africa’s water law is commonly regarded by stakeholders as being in direct competition with the needs of humans. This has resulted in much debate and varying interpretations ... Read more
Efficiency of the SASS4 rapid bioassessment protocol in determining river health: A case study on the Mhlathuze River, KwaZulu-Natal, South Africa

Author: Vos, P ; Wepener, V ; Cyrus, DP Date: Jan 2002 The purpose of the study was to verify the ability of the South African Scoring System version 4 (SASS4), to assess the health of aquatic ecosystems. The macro invertebrate community attributes of the Mhlathuze River (KwaZulu-Natal, South ... Read more
Environmental challenges to meeting sustainable development goals in Southern Africa

Author: Mutanga, Shingirirai S ; Skhosana, Felix ; Mateyisi, Mohau ; Thenga, Humbelani F ; Naidoo, Sasha ; Ramoelo, A ; Nangombe, Shingirai S ; Lumsden, Trevor G Date: Jan 2024 There is an inextricable link between ecosystem integrity and the potential for achieving sustainable development goals (SDG). This chapter highlights key ecosystem threats and their drivers within the southern African regional context to ... Read more
How water chemistry determines the risk of metallic engineered nanoparticles in aquatic ecosystems: nAg and nZnO case study

Author: Thwala, Melusi ; Musee, N ; Sikhwivhilu, L ; Wepener, V Date: Sep 2013 The dispersion of nAg and nZnO engineered nanoparticles (ENPs) in water was investigated through the dissolution and agglomeration analysis over a 14 days exposure period. Before testing, the ENPs were in the nanoscale: 40-60 and 10-130 nm ... Read more
Rationale for an ecological risk approach for South African water resource management

Author: Jooste, S ; Claassen, Marius Date: Jul 2001 The principle of ecosystem protection in the South African Water Act requires that water resource management tools for a multiple stressor environment be tailored to the characteristics of the aquatic ecosystem. The requirements of the Act, ... Read more
Riverine biodiversity conservation in South Africa: current situation and future prospects

Author: Ashton, PJ Date: Jul 2007 South Africa is richly endowed with an array of natural resources, with one exception - water. In South African water law, a river system and its associated riverine biodiversity - i.e. the entire aquatic ecosystem - is regarded as the ‘water ... Read more
Water. State of the environment: Issue summary

Author: Strydom, W ; Hill, Liesl ; Hobbs, P Date: Mar 2010 The shortfalls in water available per water management area and between river systems are alleviated through the transfer of significant volumes of water. This has a direct negative impact on the ecology of these systems, with in many cases, ... Read more

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Browsing by Subject "Aquatic ecosystems"

Browsing by Subject "Aquatic ecosystems"

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All of ResearchSpace

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