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Browsing by Author "Whitfield, AK"

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

Author: Whitfield, AK ; Adams, JB ; Harrison, TD ; Lamberth, SJ ; Lemley, DA ; Mackay, F ; Van Niekerk, Lara ; Weyl, Olf Date: Apr 2021 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 macrophytes are one of the primary non-native groups in the ... Read more
A review of the ecology and management of temporarily open/closed estuaries in South Africa, with particular emphasis on river flow and mouth state as primary drivers of these systems

Author: Taljaard, Susan ; Whitfield, AK ; Bate, GC ; Adams, JB ; Cowdely, PD ; Froneman, PW ; Gama, PT ; Strydom, NA ; Theron, AK ; Turpie, JK ; Van Niekerk, Lara ; Wooldridge, TH Date: Jun 2012 Research in South African temporarily open/closed estuaries that includes studies on the hydrodynamics, sediment dynamics, acronutrients, microalgae, macrophytes, zoobenthos, hyperbenthos, zooplankton, ichthyoplankton, fishes and birds is ... Read more
A review of the influence of biogeography, riverine linkages, and marine connectivity on fish assemblages in evolving lagoons and lakes of coastal southern Africa

Author: Whitfield, AK ; Weerts, Steven P ; Weyl, OLF Date: Sep 2017 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 ... Read more
River flow and fish abundance in a South African estuary

Author: Whitfield, AK ; Harrison, TD Date: Jun 2003 The ichthyofauna of the Thukela Estuary, a small (55 ha), shallow (<1_5 m) system on the KwaZulu-Natal coast (mean annual river runoff of 3865_106m3, from a large catchment of29 000km2, is seasonal: peak inputs occurring between November and ... Read more
A socio-ecological systems approach towards future research for the restoration, conservation and management of southern African estuaries

Author: Adams, JB ; Whitfield, AK ; Van Niekerk, Lara Date: Apr 2020 This Reflections article highlights the growing pressures that southern African estuaries are experiencing in the Anthropocene, as identified by the research presented in this Special Medal Issue. Estuaries are exposed to multiple stressors, ... Read more
Swartvlei (CMS11)

Author: Whitfield, AK ; Allanson, BR ; Heinecken, TJE Date: Dec 1983 Swartvlei ranks among the most intensively studied of all Cape estuarine systems. The hydrology of the Swartvlei catchment has been investigated by then the Department of Water Affairs, hydrographic survey have been conducted by the Coastal ... Read more

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Browsing by Author "Whitfield, AK"

Browsing by Author "Whitfield, AK"

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