Will the invasive mussel Mytilus galloprovincialis Lamarck replace the indigenous Perna perna L. on the south coast of South Africa?

2006 ◽  
Vol 338 (1) ◽  
pp. 140-151 ◽  
Author(s):  
Sarah J. Bownes ◽  
Christopher D. McQuaid
Keyword(s):  
South Africa ◽  
Mytilus Galloprovincialis ◽  
South Coast ◽  
Perna Perna ◽  
The South ◽  
Invasive Mussel

scholarly journals Southern Hemisphere anticyclonic circulation drives oceanic and climatic conditions in late Holocene southernmost Africa

2017 ◽  
Vol 13 (6) ◽  
pp. 649-665 ◽  
Author(s):  
Annette Hahn ◽  
Enno Schefuß ◽  
Sergio Andò ◽  
Hayley C. Cawthra ◽  
Peter Frenzel ◽  
...  
Keyword(s):  
South Africa ◽  
Climatic Conditions ◽  
Sea Surface ◽  
South Coast ◽  
Ice Age ◽  
Sea Surface Temperatures ◽  
The South ◽  
Anticyclonic Circulation ◽  
Surface Temperatures ◽  
Precipitation Regimes

Abstract. Due to the high sensitivity of southern Africa to climate change, a reliable understanding of its hydrological system is crucial. Recent studies of the regional climatic system have revealed a highly complex interplay of forcing factors on precipitation regimes. This includes the influence of the tropical easterlies, the strength of the southern hemispheric westerlies as well as sea surface temperatures along the coast of the subcontinent. However, very few marine records have been available in order to study the coupling of marine and atmospheric circulation systems. Here we present results from a marine sediment core, recovered in shallow waters off the Gouritz River mouth on the south coast of South Africa. Core GeoB18308-1 allows a closer view of the last  ∼  4 kyr. Climate sensitive organic proxies, like the distribution and isotopic composition of plant-wax lipids as well as indicators for sea surface temperatures and soil input, give information on oceanographic and hydrologic changes during the recorded time period. Moreover, the micropaleontology, mineralogical and elemental composition of the sediments reflect the variability of the terrigenous input to the core site. The combination of down-core sediment signatures and a catchment-wide provenance study indicate that the Little Ice Age ( ∼  300–650 cal yr BP) was characterized by climatic conditions favorable to torrential flood events. The Medieval Climate Anomaly ( ∼  950–650 cal yr BP) is expressed by lower sea surface temperatures in the Mossel Bay area and humid conditions in the Gouritz River catchment. These new results suggest that the coincidence of humid conditions and cooler sea surface temperatures along the south coast of South Africa resulted from a strengthened and more southerly anticyclonic circulation. Most probably, the transport of moisture from the Indian Ocean by strong subtropical easterlies was coupled with Agulhas Bank upwelling pulses, which were initiated by an increase in Agulhas Current strength.

scholarly journals Mass mortality and recolonization of Pyura stolonifera (Heller) on the south coast of South Africa

1999 ◽  
Vol 21 (1) ◽  
pp. 117-133 ◽  
Author(s):  
N. Hanekom ◽  
J. M. Harris ◽  
G. M. Branch ◽  
J. C. Allen
Keyword(s):  
South Africa ◽  
Mass Mortality ◽  
South Coast ◽  
The South

The effect of mesoscale oceanographic features on the distribution of mussel larvae along the south coast of South Africa

2014 ◽  
Vol 132 ◽  
pp. 162-173 ◽  
Author(s):  
Francesca Porri ◽  
Jennifer M. Jackson ◽  
Charles E.O. Von der Meden ◽  
Nicolas Weidberg ◽  
Christopher D. McQuaid
Keyword(s):  
South Africa ◽  
South Coast ◽  
The South

Distribution and habitat use of Indo-Pacific bottlenose dolphins Tursiops aduncus along the south coast of South Africa

2018 ◽  
Vol 40 (4) ◽  
pp. 439-450 ◽  
Author(s):  
OA Vargas-Fonseca ◽  
SP Kirkman ◽  
D Conry ◽  
GM Rishworth ◽  
V Cockcroft ◽  
...  
Keyword(s):  
South Africa ◽  
Habitat Use ◽  
Bottlenose Dolphins ◽  
South Coast ◽  
The South ◽  
Tursiops Aduncus
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