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Showing 1 to 20 of 26 for “"Cape Agulhas"”.
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Assessing the contribution and variations of spring discharges to river flows within the Nuwejaars Catchment, Cape Agulhas
Water resource management in South Africa has not stressed the importance of springs as a water resource and fails to integrate surface water and groundwater as one essential resource functioning interchangeably. The investigation of springs as a water resource is a way of understanding the …
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A biogeographic analysis of the seaweed flora of the west coast of southern Africa, from Lüderitz to Cape Agulhas
… the seaweed flora of the area from Lüderitz to Cape Agulhas was undertaken. Biogeographic patterns were reviewed across 15 geographic regions. A TWINSPAN analysis showed a clear division of the area into two separate species communities. These two communities are the Benguela province, and the …
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A critical assessment of how local municipalities implement local economic development: case studies of Bergrivier and Cape Agulhas local municipalities
… between Bergrivier Local Municipality and Cape Agulhas Local Municipality located in the Western Cape province. The study evaluated internal and external factors influencing the design and implementation of LED strategies. The comparison focused on institutional arrangements, …
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The siting of a wind turbine using the WASP numerical model and its validation by comparison with field data
… a coastal hill approximately 20 km west of Cape Agulhas. The average annual wind speed was predicted to be 11.4 m/s at 50m a.g.l at this site. This is a 24% increase over the wind measured at the Cape Agulhas lighthouse for the same height. The predicted theoretical power of 2019 W/m2, was …
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Holding the line: assembling and mapping local and traditional knowledge of historic injustice and environmental change held by handline fishers in the Cape Agulhas region
Small-scale fishers in the Cape Agulhas region of South Africa hold valuable local and traditional knowledge that is insufficiently incorporated in fishery governance. Several meta-level global directives including the Convention for Biodiversity (CBD), United Nations Educational, Scientific and …
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Temporal and spatial variability in 'Tetracotyle' type and metacercariae infection in the South African sardine, Sardinops sagax
… to the east (Mossel Bay and Port Elizabeth) of Cape Agulhas in 2011 and 2012. Samples were preserved whole in 70% ethanol, or frozen, and then bagged and labelled. Fish were measured (caudal length in cm), sexed and dissected and summary statistics on the infection by "tetracotyl"e- type …
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An individual-based modelling approach to examine life history strategies of sardine Sardinops sagax in the southern Benguela ecosystem
… region and the south coast shelf region (Agulhas Bank). A stage-based temperature-dependent development model is incorporated and vertical positioning schemes are tested. The spatial distribution and size structure of the sardine spawning stock for the period 1991-1999 are presented and a …
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Using Geographic Information Systems and remote sensing to improve the management of kelp resources in South Africa
… database for the South African coastline from Cape Agulhas to the Orange River (the international border with Namibia). The method was designed to integrate past and current analysis of multi-year kelp data from commercial harvesting, biomass and kelp bed extent while allowing for the …
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Bredasdorp: a regional land-use study
The study area lies in the South West Cape and forms a sub-region of the predominantly agricultural region known as the Overberg. Bredasdorp, the primary urban node of the area lies to the east-south east of and some 180 km by road from Cape Town. The regional setting of the area is clarified on …
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Featherstream
… World War. Returning to her father's farm at Cape Agulhas for the university holidays, Anna van der Vliet stumbles on a clandestine operation to provision enemy U-boats. Her dilemma of whether to betray family or country is further complicated when she falls in love with German naval commander …
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The siting of wind turbines
… worthy of investigation was in the vicinity of Cape Agulhas. A number of methods of ascertaining the wind potential over a given region were considered for investigating the area of interest. The two readily available techniques, physical and numerical modeling, were chosen to investigate the …
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Comparing in situ and satellite temperature data on the Agulhas Bank to understand changes in anchovy (Engroulis encrasicolus) distribution
… between the cross-shelf SST difference on the Agulhas Bank and the relative distribution of anchovy (Engraulis encrasicolus) spawner biomass east of Cape Agulhas. However, other studies have shown that nearshore satellite data may not be as accurate as originally believed. Using the …
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Wind-driven upwelling on the Western Agulhas Bank: a study using ERA5 and WASA3 winds
… and the adjacent western boundary current, the Agulhas Current. The Western Agulhas Bank (WAB), defined as the region over the Agulhas Bank from Cape Point to Cape Agulhas, is the southernmost region of the SBUS however it has a markedly different coastline orientation, and upwelling dynamics in …
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Kelp forests in False Bay: urchins vs. macroalgae in South Africa's south-west coast biogeographical transition zone
… along South Africa's south-west coast between Cape Point and Cape Agulhas occur in a region of biogeographical overlap. They are commonly referred to as transition zone kelp forests and are dynamic ecosystems that are particularly susceptible to grazing influence from species such as sea …
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Comparative age and growth of juvenile dusky kob (Argyrosomus japonicus) in three South African estuaries, with notes on diet and temperature effects
… Africa. It has a wide distribution range from Cape Agulhas to the Mozambique border. Juveniles A. japonicus <1070 mm) occur inshore and in estuaries where surf-zone and estuarine anglers target them. Adult A. japonicus (> 1070 mm) are caught beyond the surf zone by line fishermen. In this …
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A geochemical investigation of the waters and sediments of De Hoop Vlei, Bredasdorp district, South Africa
… lake situated 53 kilometres north-east of Cape Agulhas in the Western Cape Province of South Africa. It is probably of estuarine origin but is now separated from the sea by mobile sand dunes and, therefore, has no surface outflow. Inflow to the vlei is from a catchment area of approximately …
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Invisible invasion: finding Perna viridis amongst South African green mussels
… of P. viridis spreading down the coast to Cape Agulhas and outcompeting the native species in that area and management should be aware of the P. viridis in South Africa, monitoring the area for any evidence of range expansion.
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Characterizing and comparing the spawning habitats of anchovy (Engraulis capensis) and sardine (Sardinops sagax) in the Southern Benguela upwelling ecosystem
The spawmng habitats of anchovy (Engraulis capensis) and sardine (Sardinops sagax) in the southern Benguela upwelling ecosystem were characterized by comparing the data on abundance and distribution of eggs of the two species with environmental variables. Data were collected from two different …
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Variability in the diet of cape fur seals and their interaction with fisheries off the South African coast, 2010-2019
Cape fur seals (Arctocephalus pusillus pusillus) are sentinel marine top predators in southern African coastal waters due to their generalist diet and wide breeding range from southern Angola (Baia dos Tigres) to Algoa Bay, South Africa. Their long-life span makes them good indicators of ecosystem …
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Sediment redistribution in the Uilkraals estuary as a consequence of human disturbance
… estuary is situated in the south-western Cape, approximately 60 kilometres north-west of Cape Agulhas. Human impact has been extensive and engineering projects of various sizes and permanence have marked the recent history of this estuary. A bridge and embankment which cross the estuary …
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