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DISTRIBUTION AND ABUNDANCE OF THE BENTHOS IN THE SEDIMENTS OF LAKE CUBHU: A FRESHWATER COASTAL LAKE IN ZULULAND SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: D.P. Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South Africa T.J. Martin --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaA preliminary investigation of the macrobenthic invertebrates of the sediments of Lake Cubhu, a freshwater coastal lake near Richards Bay was conducted on a quarterly basis during 1987. The most important factor which determined the abundance and distribution of each... -
HUMAN ACTIVITIES AND FACTORS AFFECTING THE DISTRIBUTION OF MACROBENTHIC FAUNA IN SALDANHA BAY
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: L.F. Jackson --- , South Africa S. McGibbon --- , South AfricaThe most recent trends in the economic development of Saldanha Bay are towards the tourist and mariculture industries, both of which are dependent on a high quality of water. Yet this water quality is now under threat. In this study,... -
SALINITY, FLOODS AND THE INFAUNAL MACROBENTHIC COMMUNITY OF THE ST LUCIA ESTUARY, KWAZULU-NATAL, SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R. K. Owen --- , , South Africa A. T. Forbes --- , , South AfricaThe St Lucia estuary and lake comprise some 80 % of the estuarine area of KwaZulu-Natal. The system is subject to floods and hypersaline conditions, the latter twice exceeding 100 since 1970. The lake is connected to the sea by... -
MANAGING THE ST. LUCIA ESTUARY—MESSAGES FROM THE MUD
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R. K. Owen --- , , South Africa A. T. Forbes --- , , South AfricaThe infaunal macrobenthic community of the St Lucia estuary has been exposed to natural disturbance in the form of salinity fluctuations arising from floods and hypersaline conditions, and human-induced interference arising from dredging and beam trawling. The responses of the... -
A REVIEW OF THE MACROBENTHIC FAUNA OF THE MHLATHUZE ESTUARY: SETTING THE ECOLOGICAL RESERVE
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: C. F. Mackay --- , , South Africa D. P. Cyrus --- , , South AfricaThis paper reviews historical and current ecological information on macrobenthos from the Mhlathuze Estuary before and after development of the Richards Bay Harbour. The fauna is described in terms of the potential influence of a change in freshwater inflow to... -
Physico-chemical and macrobenthic faunal characteristics of Kuramo Water, Lagos, southern Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CA Edokpayi MO Lawal NA Okwok CA OgunwenmoA five-month study in 2001 of an enclosed lagoon, Kuramo Water in southern Nigeria, exposed to urban perturbation describes its physical, chemical and macrobenthic invertebrate characteristics. Of the 16 physical and chemical conditions studied at four sites within the bank-root... -
The potential for zoobenthic fauna dispersal into the St Lucia Estuary from the Mfolozi–Msunduzi estuarine system, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RK Owen --- Coastal Research Unit of Zululand, Department of Zoology, South Africa DP Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South Africa L Vivier --- Coastal Research Unit of Zululand, Department of Zoology, South Africa HL Jerling --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaThe onset of a prolonged drought in the St Lucia catchment in 2002 and subsequent mouth closure raised concern for the biota of the estuary. Ezemvelo KZN Wildlife proposed a scheme whereby the Mfolozi–Msunduzi mouth would be closed, causing fresh... -
Ecological status and role of the Mfolozi–Msunduzi estuarine system within the iSimangaliso Wetland Park, a World Heritage Site on the south-east coast of South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DP Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South Africa L Vivier --- Coastal Research Unit of Zululand, Department of Zoology, South Africa RK Owen --- Coastal Research Unit of Zululand, Department of Zoology, South Africa HL Jerling --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaThe original structure and functioning of the historical Mfolozi–St Lucia estuarine system are described and anthropogenic impacts, which resulted in the Mfolozi and Msunduzi rivers being separated from the St Lucia Estuary and having their own combined mouth to the... -
Benthic faunal distribution and abundance in the Mfolozi–Msunduzi estuarine system, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SG Ngqulana --- Coastal Research Unit of Zululand, Department of Zoology, South Africa RK Owen --- Coastal Research Unit of Zululand, Department of Zoology, South Africa L Vivier --- Coastal Research Unit of Zululand, Department of Zoology, South Africa DP Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaThe Mfolozi–Msunduzi estuarine system historically shared a common mouth with the St Lucia estuarine system. In 1952, a separate mouth was created, 1.5 km south of St Lucia mouth, to prevent silt carried by the Mfolozi River from entering Lake... -
Diet of the demersal feeding Leiognathus equula in the Mfolozi–Msunduzi estuarine system, South Africa, in response to an impoverished macrobenthic invertebrate community
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JBB Nhleko --- Coastal Research Unit of Zululand, Department of Zoology, South Africa DP Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South Africa L Vivier --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaLeiognathus equula, a species generally regarded as a zoobenthic feeder, was the most abundant fish species sampled in the Mfolozi–Msunduzi estuarine system in 2008–2010, despite the zoobenthos in this system being impoverished. Four dietary assessment methods all confirmed that its... -
Spatial variability of macrozoobenthic diversity on tidal flats of the Niger Delta, Nigeria: the role of substratum
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Zabbey --- Department of Animal Science and Fisheries, Nigeria AI Hart --- Department of Animal and Environmental Biology, NigeriaBaseline community assemblages and diversity of macrozoobenthic infauna in soft-bottomed intertidal flats at Bodo Creek on the upper reaches of the Andoni–Bonny estuarine system were determined spatially and in relation to sediment particle characteristics for two years from May 2006... -
Physical Factors Regulating Macrobenthic Community Structure on a South African Estuarine Flood-tidal Delta
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M. L. Bursey T. H. WooldridgeMultivariate techniques were used to identify environmental parameters affecting macrobenthic communities on the flood-tidal delta of the Nahoon Estuary and adjacent beach near East London on the south-east coast of South Africa. Water content of sediments, temperature and exposure were... -
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
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AK Whitfield --- , South Africa GC Bate --- Department of Botany, South Africa JB Adams --- Department of Botany, South Africa PD Cowley --- , South Africa PW Froneman --- Department of Zoology and Entomology, South Africa PT Gama --- Department of Botany, South Africa NA Strydom --- Department of Zoology, South Africa S Taljaard --- , South Africa AK Theron --- , South Africa JK Turpie --- , South Africa L van Niekerk --- , South Africa TH Wooldridge --- Department of Zoology, South AfricaResearch in South African temporarily open/closed estuaries that includes studies on the hydrodynamics, sediment dynamics, macronutrients, microalgae, macrophytes, zoobenthos, hyperbenthos, zooplankton, ichthyoplankton, fishes and birds is used as a basis to review the ecology and management of this estuary type... -
Macrozoobenthic biodiversity patterns in the northern province of the Benguela upwelling system
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ML Zettler --- Department of Biology, Germany R Bochert --- Department of Biology, Germany F Pollehne --- Department of Biology, GermanyThis paper describes macrozoobenthos diversity in the vicinity of the Angola–Benguela Frontal Zone between 15° and 23° S in offshore waters of the Namib biogeographic province in a comprehensive zoogeographical context. At 38 selected stations, about 500 different macrozoobenthic taxa... -
Large-scale spatial patterns within soft-bottom epibenthic invertebrate assemblages along the west coast of South Africa, based on the Nansen trawl survey
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Lange --- Department of Biological Sciences and Marine Biology Research Centre, South Africa CL Griffiths --- Department of Biological Sciences and Marine Biology Research Centre, South AfricaKnowledge of benthic invertebrate biodiversity and distribution patterns over the continental shelf of South Africa is poor and this is hampering efforts to design a network of marine protected areas aimed at conserving regional benthic biota. We analysed invertebrate biodiversity... -
A note on the diet and feeding of Chrysaora hysoscella in Walvis Bay Lagoon, Namibia, during September 2003
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BA Flynn MJ GibbonsThe diet of Chrysaora hysoscella was investigated from 55 specimens caught near the surface throughout 24h in Walvis Bay Lagoon, Namibia, during September 2003. The diet was diverse, ranging from dinoflagellates to carideans, and included abundant benthic species (adults and... -
Macrozoobenthic communities in waters off Angola
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Lange --- Leibniz Institute for Baltic Sea Research, Germany A Darr --- Leibniz Institute for Baltic Sea Research, Germany ML Zettler --- Leibniz Institute for Baltic Sea Research, GermanyMacrozoobenthic biodiversity is described for waters off Angola, one of the poorest-known marine environments of the world. During research cruises in 2004 and 2011, the shelf region of Angola was investigated at 39 stations in water depths of between 19... -
Microalgal responses to physico-chemical variability in the small temporarily open/closed Seteni Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NK Carrasco --- School of Life Sciences, South Africa R Perissinotto --- School of Life Sciences, South AfricaThe Seteni Estuary is a small temporarily open/closed estuary (TOCE) in South Africa under the influence of agricultural practices. While the general significance of microalgae to estuarine production is widely recognised, the factors regulating microalgal biomass in these heterogeneous systems... -
Macrofaunal community structure in the littoral zone of a freshwater-deprived, permanently open Eastern Cape estuary
Item type: Journal Article • Journal: African Zoology • Authors: T.O. Henninger --- Department of Zoology and Entomology, South Africa P.W. Froneman --- Department of Zoology and Entomology, South AfricaSpatial patterns in the macrofauna community structure within four distinct zones of the permanently open, freshwater-deprived Kariega Estuary on the southeastern coastline of southern Africa were investigated in March–May 2010. The zones within the littoral zone comprised a band of... -
An evaluation of the weight of evidence approach to assess sediment quality in the Mvoti Estuary, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BF Shaddock --- Department of Zoology, South Africa V Wepener --- Water Research Group, Unit for Environmental Sciences and Management, South AfricaA weight of evidence approach was evaluated in the Mvoti Estuary, which is affected by point and non-point sources of contaminants. Four sites were sampled in 2005 and assessed along the standard sediment quality triad lines of evidence: sediment chemistry,... -
Diversity of benthic macrofauna of the flood-tidal delta of the Nahoon Estuary and adjacent beach,South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Mary Bursey --- East London Museum, South Africa Tris Wooldridge --- Zoology Department, South AfricaMacrobenthos of the Nahoon estuarine flood-tidal delta was surveyed to determine species composition, distribution and abundance; establish possible patterns in community structure and compare assemblages with those of adjacent sandy beach and lower estuary. Macrozoobenthos retained by a 1 mm... -
Affinities of some common estuarine macroinvertebrates to salinity and sediment type: empirical data from Eastern Cape estuaries, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Peter R. Teske --- Department of Zoology, South Africa Tris H. Wooldridge --- Department of Zoology, South AfricaFourteen species of subtidal macrobenthos present in thirteen Eastern Cape estuaries, South Africa, were compared with regard to correlations with two important environmental variables (salinity and sediment mud content). Species were divided into five different faunal components based on their... -
Subtidal macrozoobenthic community resilience to change following natural mouth breaching of the temporarily open/closed East Kleinemonde Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TH Wooldridge --- Department of Zoology, South Africa K Bezuidenhout --- Department of Zoology, South AfricaThe East Kleinemonde Estuary, on the south-east coast of South Africa, typically opens for only short periods, usually <10 days. During a nine-month study in 2006, marine influence persisted for a near-continuous period of three months. This provided an opportunity... -
Distribution and feeding modes of macrobenthos within three oceanographic feature areas of the KwaZulu-Natal Bight, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CB Untiedt --- Oceanographic Research Institute, South Africa CF MacKay --- Oceanographic Research Institute, South AfricaThe composition and distribution of macrobenthic communities was investigated in three areas in the KwaZulu- Natal Bight, a section of shelf off the east coast of South Africa. Areas were pre-selected on the basis of three known oceanographic features, posited... -
Absence of an effect of freshwater input on the stable isotope and fatty acid signatures of intertidal filter-feeders
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Puccinelli --- Department of Zoology and Entomology, South Africa CD McQuaid --- Department of Zoology and Entomology, South Africa M Noyon --- Department of Zoology and Entomology, South AfricaFreshwater input is known to have the potential to influence marine pelagic and benthic communities through the export of nutrients, sediments and detritus. The increase in nutrients of riverine origin in coastal environments can enhance primary production in coastal areas,... -
The bivalve Lembulus bicuspidatus may enhance denitrification in shelf sediment at the Angola–Benguela Frontal Zone
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Neumann --- University of Hamburg, Institute for Geology, Germany A Flohr --- Leibniz Center for Tropical Marine Ecology, GermanyWe collected living individuals of the bivalve Lembulus bicuspidatus, which shows an unusual preference for the oxygen-deficient habitat found at the Angola–Benguela Frontal Zone of the southeastern Atlantic. With a series of incubation experiments with 15N-labelled nitrate as a tracer... -
Macrobenthic fauna of the Agulhas Bank shelf edge
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Brandt --- University of Cape Town, South Africa N Karenyi --- University of Cape Town, South Africa K Sink --- South African National Biodiversity Institute (SANBI), South AfricaThe deep sea (>200m depth) off South Africa is largely unexplored, with most benthic macrofauna samples limited to depths shallower than 100m. The benthic infaunal diversity of the Agulhas Bank shelf edge has not yet been studied. We analysed seven... -
Diversity, distribution and knowledge gaps of Polychaeta on the continental shelf of southern Namibia
Item type: Journal Article • Journal: African Zoology • Authors: Amoré Malan --- , South Africa Aiden Biccard --- , South Africa Jessica Dawson --- , South Africa Robyn Payne --- , South Africa Kevin Schmidt --- , South Africa Kirti N Gihwala --- , South Africa Ken Hutchings --- , South Africa Deon Louw --- , Namibia Josef Shikeva --- , Namibia Blessing Kamwi --- , Namibia Lapaka Kaimbi --- , Namibia Julien Vumazonke --- , Namibia Megameno Mutaleni --- , Namibia Thomas Shannon --- , United Kingdom Sarah Chordekar --- , United Kingdom Vere Ross-Gillespie --- , United KingdomThis study investigated the diversity, composition and distribution patterns of polychaete macrofauna inhabiting unconsolidated sediments on the continental shelf of southern Namibia. During the austral summer of 2021, 910 Van Veen grab samples were collected from 91 sites in water... -
Changes in the macrobenthic community structure associated with finfish farming in Richards Bay Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SF Nzama --- University of Zululand, South Africa L Vivier --- University of Zululand, South Africa A De Fortier --- University of Zululand, South AfricaGlobally, aquaculture has shown the potential to boost economic activity and enhance food security. However, controversy exists around large-scale finfish farming, with objections centred around potential environmental issues (especially eutrophication). Given this, the effects of a trial dusky kob (Argyrosomus... -
Benthic macrofaunal changes in response to restoration efforts in the St Lucia estuarine lake, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PC Moloi --- School of Agriculture and Science, University of KwaZulu-Natal, South Africa GM Rishworth --- Department of Zoology, Institute for Coastal and Marine Research, Nelson Mandela University, South Africa MS Bird --- Department of Zoology, University of Johannesburg, South Africa NK Carrasco --- School of Agriculture and Science, University of KwaZulu-Natal, South AfricaThe St Lucia estuarine lake and Mfolozi River mouth on the Indian Ocean coast of South Africa were once a single, connected system but were artificially separated in 1952 to prevent siltation from the Mfolozi River catchment which risked shallowing...