Processed CTD continuous observations from the South Coast Hake Biomass Survey on the Africana Voyage 063, May 1988
Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 10 May and 03 June 1988, during the South Coast Hake Biomass Cruise on the Africana Voyage 063, in the southern part of the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of South Africa and the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure...
Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 235, February 2017
Nutrient data for the Integrated Ecosystem Programme: Southern Benguela (IEP:SB): Feb 2017.IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterms. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so that South Africans can benefit from a...
Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 239, May 2017
Nutrient data for the Integrated Ecosystem Programme: Southern Benguela (IEP:SB): May 2017 from all stations.IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterms. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so that South Africans...
Processed CTD data from the Pelagic Biomass Survey on the Africana Voyage 290, October 2016
This is processed Conductivity, Temperature, Depth (CTD) data from the Pelagic Biomass Survey on the Africana Voyage 290 from 25 October - 14 December 2016. The cruise operated from Hondeklip Bay to Port St Johns, South Africa.The principal aim of the Pelagic Biomass Surveys is to obtain estimates of the total biomass of anchovy, sardine and west coast round herring and to obtain data on their population length frequency compositions, for input to the operational management procedure (OMP)...
Converted CTD data from the Pelagic Biomass Survey on the Africana Voyage 290, October 2016
This is converted Conductivity, Temperature, Depth (CTD) data from the Pelagic Biomass Survey on the Africana Voyage 290 from 25 October - 14 December 2016. The cruise operated from Hondeklip Bay to Port St Johns, South Africa.The principal aim of the Pelagic Biomass Surveys is to obtain estimates of the total biomass of anchovy, sardine and west coast round herring and to obtain data on their population length frequency compositions, for input to the operational management procedure (OMP)...
Pre-processed CTD data from the South Coast Mooring Cruise on the Algoa Voyage 208, July 2014
This is pre-processed Conductivity, Temperature, Depth (CTD) data collected on the South Coast Mooring Cruise on the Algoa Voyage 208, 9 to 24 July 2014. The South Coast Mooring Cruise had two scientific objectives: (1) Service, maintain and extend the in situ operational oceanography network currently deployed around South Africa and (2) to investigate the dynamics of the Port St Johns eddy and biological implications. Between 1988 and 2011, environmental and plankton sampling was conducted...
Processed CTD data from the South Coast Mooring Cruise on the Algoa Voyage 208, July 2014
This is processed Conductivity, Temperature, Depth (CTD) data collected on the South Coast Mooring Cruise on the Algoa Voyage 208, 9 to 24 July 2014. The South Coast Mooring Cruise had two scientific objectives: (1) Service, maintain and extend the in situ operational oceanography network currently deployed around South Africa and (2) to investigate the dynamics of the Port St Johns eddy and biological implications. Between 1988 and 2011, environmental and plankton sampling was conducted...
Effectiveness of Table Mountain National Park Marine Protected Area project (2017-2021)
Intertidal rocky shores are the most accessible marine habitats and therefore heavily impacted by harvesting. In recent years, they have also been increasingly invaded by alien species, which compounds the effects of harvesting on rocky shore community composition and functioning. Recent survey data, combined with historical data from 1970, were used to assess temporal changes over the intervening period in rocky shore communities at two sites (Wireless Point and Wireless Island).
CTD and bottle test data during GINA 2017 for Seaglider SG574 collected in Cape Town harbour
The Gliders IN the Agulhas (GINA) project is a multi-institutional effort to implement sustained glider observations around South Africa’s coastline to enhance existing regional networks and complement larger international observations systems such as the Ocean Gliders Boundary Ocean Observing Network (BOON). Ocean gliders are robotic platforms operated and piloted from land. The Seaglider during GINA was set-up to vertically profile the water column between depths of 0 and 1000m....
Wirewalker wave-powered profilers from three nearshore moorings in St Helena Bay, South Africa, Feb-Apr 2011
Concurrent nearshore measurements of temperature, salinity, and chlorophyll fluorescence from three moorings offshore of Elands Bay, within St Helena Bay, Southern Benguela, in water depths of ~22 m (mooring 3), ~50 m (mooring 2) and ~62 m (mooring 1). The data were originally presented in "Lucas, A. J., Pitcher, G. C., Probyn, T. A., & Kudela, R. M. (2014, March). The influence of diurnal winds on phytoplankton dynamics in a coastal upwelling system off south -western Africa. Deep Sea...
Seaglider test data collected during GINA 2017 by Seaglider SG574 in Cape Town harbour
The Gliders IN the Agulhas (GINA) project is a multi-institutional effort to implement sustained glider observations around South Africa’s coastline to enhance existing regional networks and complement larger international observations systems such as the Ocean Gliders Boundary Ocean Observing Network (BOON). Ocean gliders are robotic platforms operated and piloted from land. The Seaglider during GINA was set-up to vertically profile the water column between depths of 0 and 1000m....
Analysed Particulate Organic Matter data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 239, May 2017
Particulate Organic Matter data (stable isotope) for the Integrated Ecosystem Programme: Southern Benguela (IEP:SB): May 2017. IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterns. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so...
Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 242, August 2017
Nutrient data for the Integrated Ecosystem Programme: Southern Benguela (IEP: SB): Aug 2017 from all stations. IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterns. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so that South...
Analysed Nitrate isotope data from the Integrated Ecosystem Programme: Southern Benguela (IEP: SB) cruise on the Algoa Voyage 239, May 2017
Nitrate isotope data for the Integrated Ecosystem Programme: Southern Benguela (IEP:SB): May 2017. IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterms. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so that South Africans can...
Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 244, November 2017
First look at Chl-a data from a survey of West Coast of South Africa, Algoa Voyage 244, as part of the Integrated Ecosystem Programme.
Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 246, February 2018
First look at Chl-a data from a survey of West Coast of South Africa, Algoa Voyage 246, as part of the Integrated Ecosystem Programme from the 15 to 22 February 2018. IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterms. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective...
Microplankton monitoring along the west coast of South Africa
Microplankton, comprising of both phyto- and zooplankton in the 20-200μm size range, are a diverse and ecologically important group. They form the foundation of the food web, are instrumental in carbon and nutrient cycling, generate at least 50% of global oxygen and facilitate energy flow to higher trophic levels. Although they are found in all oceans globally, their diversity and abundance is varied. Due to their high sensitivity and rapid response to changes in the environment, their...
Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 244, November 2017
Nutrient data for the Integrated Ecosystem Programme: Southern Benguela (IEP: SB): Nov 2017 from all stations. IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterns. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so that South...
Processed imagery data collected off the western margin's deep-sea environment on Algoa Voyage 246, February 2018
The aim of the Integrated Ecosystem Program (IEP) Benthic Project is to establish a baseline for epi-benthic invertebrate distribution, in order to identify benthic indicators for long-term monitoring within the pre-determined IEP monitoring lines. Ten stations were successfully surveyed, on board the R/V Algoa in February 2018, using a towed under-water benthic camera. The acquired abundance data represents five stations from the Kleinsee transect, four from Namaqua and one from St Helena Bay.
Cape Canyon Benthic Invertebrates Tissue samples
Submarine canyons are heterogeneous environments known to support a variety of benthic organisms, and often considered biodiversity hotspots. Canyon morphological features facilitate the funneling of organic matter to the seabed, making them significant hubs of food resources for benthic life. In light of this, the DFFE: Oceans and Coasts initiative undertook the collection of benthic tissue data aimed at understanding how hydrography affects food availability for benthic species within and...
Benthic invertebrate presence data, in and around the Cape Canyon (Southern Benguela Upwelling region)
Canyon research is still an emergent field in South Africa and the true potential of canyons as biodiversity hotspots has seldom been studied in an integrated context. In response to this, the Department of Forestry, Fisheries and the Environment: Oceans and Coasts collected benthic data to better understand benthic species profiles within and around the Cape Canyon. This equated to 39 stations (whereby 13 were canyon and 26 non-canyon) and yielded 180 species.
Southern Benguela shelf and open ocean seasonal mean chlorophyll a time series, 1997 to 2018
Reconstructed seasonal mean chlorophyll a (mg m-3) for SeaWiFS and MODIS-Aqua in the Southern Benguela (29-34.3°S;12-18.5°E) shelf and open ocean regions during austral summer, autumn, winter, and spring. Shelf and open ocean regions have been separated using the GEBCO 1000m isobath.
Northern Benguela shelf and open ocean seasonal mean microphytoplankton proportion time series, 1997 to 2018
Reconstructed seasonal mean microphytoplankton proportion for SeaWiFS and MODIS-Aqua in the Northern Benguela (15-29°S;8-16.8°E) shelf and open ocean regions during austral summer, autumn, winter, and spring. Shelf and open ocean regions have been separated using the GEBCO 1000m isobath.
Southern Benguela shelf and open ocean seasonal mean microphytoplankton proportion time series, 1997 to 2018
Reconstructed seasonal mean microphytoplankton proportion for SeaWiFS and MODIS-Aqua in the Southern Benguela (29-34.3°S;12-18.5°E) shelf and open ocean regions during austral summer, autumn, winter, and spring. Shelf and open ocean regions have been separated using the GEBCO 1000m isobath.
Northern Benguela shelf and open ocean seasonal mean chlorophyll a time series, 1997 to 2018
Reconstructed seasonal mean chlorophyll a (mg m-3) for SeaWiFS and MODIS-Aqua in the Northern Benguela (15-29°S;8-16.8°E) shelf and open ocean regions during austral summer, autumn, winter, and spring. Shelf and open ocean regions have been separated using the GEBCO 1000m isobath.