Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Steven P. Weerts"'
Publikováno v:
Ecology and Evolution, Vol 7, Iss 18, Pp 7382-7398 (2017)
Abstract The Holocene evolution of eight South African coastal lakes and lagoons is examined and related to changes in fish composition over that period. Historical and current connectivity with riverine and marine environments are the primary determ
Externí odkaz:
https://doaj.org/article/6bd394078db84bde91f0653230e514b0
Autor:
Alan K. Whitfield, Janine B. Adams, JK Turpie, Nicola C. James, SJ Lamberth, L van Niekerk, Steven P Weerts, CF MacKay, Anusha Rajkaran
Publikováno v:
African Journal of Aquatic Science. 45:199-216
For nearly three decades, the Whitfield (1992) characterisation scheme served as a reference framework to type South African estuaries. We outline a revised ecosystem classification scheme that inc...
Autor:
H L Jerling, Steven P Weerts
Publikováno v:
African Journal of Aquatic Science. 43:71-77
The Kosi coastal lake system, a chain of four interconnected basins, is located in the subtropical north-eastern corner of South Africa. Little information is available on zooplankton of the system...
Publikováno v:
Ocean & Coastal Management, 199
Rapid urbanization of the coast, growing global trade, stakeholder emancipation and ongoing depletion of natural resources mean that ports can no longer operate and develop without acknowledging and incorporating societal and environmental considerat
Publikováno v:
Estuarine, Coastal and Shelf Science. 246:107043
Land-based nutrient enrichment of estuarine waters is emerging as a major factor influencing pH and has been referred to as “the other eutrophication problem”. Small temporarily closed estuaries with high residence times are likely to be especial
Autor:
David G. Allan, Delana Louw, Susan Taljaard, Colin Talanda, Pieter Van Rooyen, Janine B. Adams, Steven P Weerts, Lara Van Niekerk
Publikováno v:
The Science of the total environment. 657
Rapid urbanisation and industrial growth in South Africa increases the need for proactive allocation of freshwater resources on a regional scale. A nine-step method is described that sets long-term targets for water resource condition and future use
Publikováno v:
Ocean & Coastal Management. 178:104801
In 1994 South Africa adopted a power-sharing democracy as basis for its political system, and this pluralistic slant also is evident in post-1994 environmental legislation, including that pertaining to the coastal marine environment. Notwithstanding
Publikováno v:
African Journal of Aquatic Science; Vol 33, No 3 (2008); 223-231
Port expansion at Richards Bay on the east coast of South Africa between 1996 and 1999 required the disposal of some 5,998,429 m3 of dredge spoil. This was deposited via a pipeline onto the adjacent beach and spilled into the swash zone. Current reve
Autor:
Joseph M Mghalu, Siaw Onwona-Agyeman, Hideshige Takada, Pedro A. Segura, Viviane Yargeau, Edward Benjamin Sabi, John Ofosu-Anim, Steven P Weerts, Tatsuya Koike, Oliver Wasonga, Karim El Saadi, José A. Correa, Antonio Manuel dos Santos Junior, Brent K Newman
Publikováno v:
Environment International, Vol 80, Iss, Pp 89-97 (2015)
The presence anti-infectives in environmental waters is of interest because of their potential role in the dissemination of anti-infective resistance in bacteria and other harmful effects on non-target species such as algae and shellfish. Since no in
Publikováno v:
Water SA; Vol 40, No 1 (2014); 27-38
Increasing water demand in coastal regions has resulted in the construction of weirs and barrages in coastal freshwaters. These form barriers to migrations of estuarine and euryhaline marine fishes and crustaceans. This study assessed the impact of l