African Coelacanth Ecosystem Programme (ACEP) (5)
Bio-optical Investigation of Phytoplankton (12)
Gliders in the Agulhas (GINA) (4)
Integrated Ecosystem Programme: Southern Benguela (IEP: SB) (27)
International Indian Ocean Expedition 2 (IIOE2) (10)
Marion Island Relief Voyage (19)
Port St Johns CTD and Bathymetry Survey (1)
South Coast Moorings and Monitoring Lines Cruise (10)
Southern Ocean Seasonal Cycle Experiment (SOSCEx) (4)
Winter Cruise (7)
Northern Benguela shelf and open ocean seasonal mean picophytoplankton proportion time series, 1997 to 2018
Reconstructed seasonal mean picophytoplankton 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.
Agulhas Bank shelf and open ocean seasonal mean nanophytoplankton proportion time series, 1997 to 2018
Reconstructed seasonal mean nanophytoplankton proportion for SeaWiFS and MODIS-Aqua in the Agulhas Bank (33.3-37.5°S;18.5-27°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.
Pelagic Biomass Survey on the Africana Voyage 290, October 2016
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) for making Total Allowable Catch (TAC) recommendations for the following year. The surveys also obtain information on the environment and food regime impacting anchovy, sardine and west coast round herring around the coast,...
South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992
The South Coast Demersal Inshore Biomass Survey was conducted on the Africana Voyage 106 from 02 to 23 September 1992. The objectives of the survey were to conduct a stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species with emphasis on 'inshore' fishing areas for recruitment estimates; to investigate the hydrology and current profiles of the South Coast and to relate this to the distribution pf the...
Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 248, May 2018
First look at Chl-a data from a survey of West Coast of South Africa, Algoa Voyage V248, as part of the Integrated Ecosystem Programme.
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...
Southern Benguela shelf and open ocean seasonal mean picophytoplankton proportion time series, 1997 to 2018
Reconstructed seasonal mean picophytoplankton 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.
Raw SADCP data from the Marion Island Annual Relief Voyage on the SA Agulhas II Voyage 024, April 2017
This is raw Shipboard Acoustic Doppler Current Profiler (SADCP) data from the Marion Island Annual Relief Voyage on the MV SA Agulhas II Voyage 024, 06 April to 12 May 2017. The 2017 Marion Relief Voyage offered the fifth opportunity to conduct multi-disciplinary, shipbased marine research focusing on links and interactions between air and sea, ocean physics, chemistry, biogeochemistry and biology, including microbial, planktic and benthic communities on board South Africa’s polar research...
Preliminary processed CTD data from the Marion Island Relief Voyage on the SA Agulhas II Voyage 019, April 2016
This is processed Conductivity, Temperature, Depth (CTD) data from the Marion Island Relief Voyage on the MV SA Agulhas II Voyage 019, 7 April to 16 May 2016. The 2016 Marion Relief Voyage 019 offered the 4th opportunity to conduct multi-disciplinary, ship-based marine research focusing on links and interactions between air and sea, ocean physics, chemistry, biogeochemistry and biology, including microbial, planktic and benthic communities on board South Africa’s polar research and supply...
Marion Island Relief Voyage on SA Agulhas II Voyage 011, April 2014
The Marion Island Relief Voyage was conducted on the SA Agulhas II Voyage 011, 14 April to 14 May 2014. The 2014 Marion Relief Voyage on board South Africa’s polar research and supply vessel MV SA Agulhas II, offered another opportunity to conduct multi-disciplinary ship-based oceanographic research focusing on links and interactions between air and sea, ocean physics, chemistry, biogeochemistry and biology. The overall aim was to continue contributing to the establishment of an...
Southern Ocean Seasonal Cycle Experiment (SOSCEx) IV on the SA Agulhas II, Voyage 020A, July 2016
The SA Agulhas II operated from Cape Town along the Goodhope Line, completing underway biogeochemical and physical oceanography observations along the transect, as part of the Winter 2016 Southern Ocean Seasonal Cycle Experiment (SOSCEx) IV and Marginal Ice Zone Dynamics. The cruise included deployment of expendable bathythermographs underway, deployment of four autonomous robotics instruments at two stations (2 wavegliders and 2 buoyancy gliders, per station), and the deployment of two Argo...
Port St Johns Conductivity Temperature Depth (CTD) and Bathymetry Survey on Algoa Voyage 198, May 2013
The Port St Johns Conductivity, Temperature, Depth (CTD) and Bathymetry Survey was conducted on the Algoa Voyage 198, 8 May - 13 May, 2013. This cruise has two scientific objectives: (1) to investigate the dynamics of the Port St. Johns eddy and biological implications and (2) to investigate the existence of mesoscale eddies in the Agulhas Current. In the case of the former, Oceans and Coasts was asked to provide input to the recent spate of shark attacks off Port St. Johns. Very little is...
West Coast Hake Biomass on the Africana Voyage 046, July 1986
The West Coast Hake Biomass was carried out on the Africana Voyage 046 from 1 to 24 July 1986.
West Coast Hake Biomass on the Africana Voyage 039, January 1986
The objectives of this cruise were to survey by means of trawling the abundance of adult and recruiting hake; to investigate the diurnal cycle of hake and other demersal species; to investigate the environment and ecological interrelationships of hake and other demersal species; to carry out acoustic target identification of mesopelagic species with RMT 8 nets; to make a few experimental trawls in deep water to search for the other species of monkfish and to determine the offshore limit of...
West Coast Hake Biomass on the Africana Voyage 033, July 1985
The objectives of this cruise were to survey by means of trawling the abundance of adult and recruiting hake; to investigate the diurnal cycle of hake and other demersal species; to investigate the environment and ecological interrelationships of hake and other demersal species and to carry out acoustic target identification of mesopelagic species with RMT 8 nets.
South Coast Hake Biomass on the Africana Voyage 036, October 1985
The first objective of this cruise was to establish, by means of surveying and trawling between 200m and 500m water depths, the feasibility of extending the hake biomass surveys to the South Coast. The area 20 E to 25 E, from 75m to 200m water depths, has already been covered during biomass surveys by Japanese research vessels, accompanied on each occasion by one of the Institute's scientists. The feasibility of trawling shallower than 200m in this region, albeit with heavy gear, has thus...
West Coast Hake Biomass on the Africana Voyage 028, January 1985
The objectives of this cruise were to survey by means of trawling the abundance of adult and recruiting hake; to investigate the diurnal cycle and the environment of hake and other demersal species; to compare trawling results of R.S. Africana with those of the Chicha Touza, the Spanish trawler used for similar surveys; to carry out acoustic target identification of mesopelagic species using RMT 8 nets and to retrieve two current meter arrays deployed during Voyage 025.
South Coast Demersal Biomass Survey on the Africana Voyage 072, May 1989
The South Coast Demersal Hake Biomass Survey was conducted on the Africana Voyage 072 from 10 May to 29 May 1989. The objectives of the cruise were to survey by means of bottom-trawling the abundance of adult and recruiting hake, sole and other trawl target species; to make experimental bottom-trawls in deep water to collect deep-water specimens of fish and squid; to test the feasibility of an acoustic assessment of horse mackerel; to investigate the environment and ecological...
South Coast Hake Biomass Survey on the Africana Voyage 048, September 1986
The objective of the cruise was to survey by means of trawling the abundance of adult and recruiting hake, sole and other trawl target species; an investigation of the environment and interrelationships of hake and other demersal species in various depth strata; to investigate the occurence, distribution and abundance of squid and squid larvae; and to investigate the occurence of linefish species in shallow waters.
Southern Benguela shelf and open ocean seasonal mean nanophytoplankton proportion time series, 1997 to 2018
Reconstructed seasonal mean nanophytoplankton 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.
Agulhas Bank shelf and open ocean seasonal mean picophytoplankton proportion time series, 1997 to 2018
Reconstructed seasonal mean picophytoplankton proportion for SeaWiFS and MODIS-Aqua in the Agulhas Bank (33.3-37.5°S;18.5-27°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.
West Coast Hake Biomass Survey on the Africana Voyage 075, July 1989
The West Coast Hake Biomass Survey on the Africana Voyage 075 was conducted from 14 July - 17 August 1989. The objectives of the cruise were to survey by means of trawling the abundance of adult and recruiting hake in South African waters; to investigate the diurnal cycle of hake and other demersal species; to investigate the environmental and ecological interrelationships of hake and demersal species; to make some experimental trawls in deep water to determine hake distribution limits and...
West Coast Hake Biomass on the Africana Voyage 022, July 1984
The objectives of this cruise were to survey by means of trawling the abundance of adult and recruiting hake; to investigate the diurnal cycle and the environment of hake and other demersal species; to carry out acoustic target identification of mesopelagic species using RMT-8 nets and to study the community interactions of fish species in the area.
Anchovy Spawning Stock Survey on the Africana Voyage 038, November 1985
The objectives of this cruise were to assess the size of the anchovy spawning stock in Cape waters by acoustic survey and estimation of egg production; describe the distribution and behaviour of other pelagic and mesopelagic fish of commercial importance; describe anchovy spawning patterns and estimate the precision of the parameters used in assessing spawning stock size by the egg production method (sex ratio, spawning fraction, fecundity, mean weight); and to investigate relationships...