African Coelacanth Ecosystem Programme (ACEP) (15)
Agulhas Bank Boundary Processes (2)
Agulhas System Climate Array (ASCA) (8)
Anchovy Recruitment Survey (20)
Benguela Current Sources and Transport (BEST 1) (2)
Current Meter and Sediment Trap Recovery Shelf Chemistry (2)
Gough Island Relief (23)
Horse Mackerel Hydroacoustic Pilot Survey (2)
Horse Mackerel Hydroacoustic Survey (2)
Integrated Ecosystem Programme: Southern Benguela (IEP: SB) (143)
International Indian Ocean Expedition 2 (IIOE2) (10)
Marion Island Relief Voyage (63)
Pelagic Pre-Recruit Mesopelagic Biomass Survey (4)
Physical-Chemical Oceanography (2)
Port St Johns CTD and Bathymetry Survey (1)
South African National Antarctic Expedition (SANAE) (32)
South Atlantic Meridional Overturning Circulation (SAMOC-SA) (6)
South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) (24)
South Coast Demersal Biomass Survey (15)
South Coast Moorings and Monitoring Lines Cruise (23)
Southern Ocean Seasonal Cycle Experiment (SOSCEx) (11)
Walters Shoal (4)
West Coast Cetacean Distribution and Abundance Survey (15)
West Coast Physical Oceanography (10)
Winter Cruise (7)
ADCP (1)
AWS (6)
CO2 ANALYZERS (2)
CTD (278)
ECHO SOUNDERS (3)
NISKIN BOTTLES (36)
SADCP (48)
SDS (1)
THERMOSALINOGRAPH (134)
XBT (36)
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.
Raw CTD continuous observations from the West Coast Hake Biomass on the Africana Voyage 046, July 1986
This is raw Conductivity-Temperature-Depth (CTD) continuous data from the West Coast Hake Biomass on the Africana Voyage 046. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. The West Coast Hake Biomass was carried out on the Africana Voyage 046 from 1 to 24 July 1986.
Raw CTD continuous observations from the Spanish-Namibian Environmental Cruise (SNEC) on the Africana Voyage 035, September 1985
This is raw Conductivity-Temperature-Depth (CTD) continuous data from the Spanish-Namibian Environmental Cruise (SNEC) on the Africana Voyage 035, collected between 16 September and 06 October 1985. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. The objective of this cruise was to investigate the hydrology and plankton of the coastal waters off Nambia between 20 S and 26 S.
Raw CTD continuous observations from the West Coast Hake Biomass on the Africana Voyage 028, January 1985
This is raw Conductivity-Temperature-Depth (CTD) continuous data from the West Coast Hake Biomass on the Africana Voyage 028, collected between 7 and 30 January 1985. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. 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...
Processed CTD continuous observations from the South Coast Hake Biomass Survey on the Africana Voyage 048, September 1986
Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 12 September and 03 October 1986, during the South Coast Hake Biomass Cruise on the Africana Voyage 048, in the southern part of the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of South Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between...
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...
Shoal Ecology on the Africana Voyage 018, April 1984
The objectives of this cruise were to obtain a broad picture of pelagic fish shoal distribution in relation to the prevailing mesoscale environmental features; to investigate intensively the diel shoal behaviour pattern of anchovy, pilchard and round herring, with particular reference to their feeding behaviour in relation to food supply. If time permitted the plan was to carry the investigation out in two areas of contrasting environmental features ie St Helena Bay and off Saldanha Bay....
Coastal Current Meter Programme on the Africana Voyage 017, March 1984
The objectives of this cruise were to retrieve ten moorings, eight on the shelf and two on the shelf break between Cape Columbine and Port Nolloth; to deploy three moorings in the coastal zone between Cape Columbine and Cape Town; to obtain Conductivity-Temperature-Depth (CTD) profiles and water samples on a transect bearing 270° from Cape Columbine; to profile currents, make repeated CTD casts and record atmospheric conditions in St Helena Bay as part of a vertical mixing study,...
West Coast Physical Oceanography on the Africana Voyage 025, October 1984
The objectives of this cruise included studying shelf circulation in the vicinity of Port Nolloth by placing three current meter moorings across the shelf; exploring the deep circulation in the Cape Basin which is thought to be a driving mechanism for the preponderance of southward flow observed on the shelf by placing a current meter in 3000m of water; recovering one current meter in the Cape Canyon and deploying two current meter moorings and a thermistor string near Cape Columbine and...
West Coast Physical Oceanography on the Africana Voyage 019, May 1984
Africana Cruise 019 lasted from May 7 to May 17th 1984 and undertook several scientific tasks. The first part of the cruise was mostly devoted to bathymetric and geophysical (continuous reflection seismic) surveys in the region of the Cape Canyon of SW Cape. These surveys were the responsibility of personnel from the Marine Geoscience Unit of the University of Cape Town, and were done as part of a collaborative project with officers of the Sea Fisheries Research Institute who have an...
Spanish-Namibian Environmental Cruise (SNEC) on the Africana Voyage 035, September 1985
The objective of this cruise was to investigate the hydrology and plankton of the coastal waters off Nambia between 20 S and 26 S.
Plankton Frontal Zone on the Africana Voyage 027, December 1984
The Plankton Frontal Zone cruise was carried out on the Africana Voyage 027 from 6 to 13 December 1984.
Processed CTD continuous observations from the Algoa Voyage 234, January 2017
SeaBird SBE911 plus Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises from 2000. Here we present processed downcast CTD continuous data collected, between 13 January and 11 February 2017, during Voyage 234 on the RV Algoa, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of South Africa.
West Coast Physical Oceanography on the Africana Voyage 016, February 1984
The objectives of this cruise were to conduct torsional vibration trials to meet the requirements of Lloyds, to retrieve and deploy two thermistor chain/current meter moorings and to conduct Conductivity-Temperature-Depth (CTD) profiling in the area of operations.
Processed CTD continuous observations from the Algoa Voyage 241, July 2017
SeaBird SBE911 plus Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises from 2000. Here we present processed downcast CTD continuous data collected, between 12 July and 14 August 2017, during voyage 241 on the RV Algoa, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of South Africa.
Raw CTD continuous observations from the Plankton Frontal Zone on the Africana Voyage 027, December 1984
This is raw Conductivity-Temperature-Depth (CTD) continuous data from the Plankton Frontal Zone on the Africana Voyage 027. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. The Plankton Frontal Zone cruise was carried out on the Africana Voyage 027 from 6 to 13 December 1984.
St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 088, December 2000
This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Algoa Voyage 088 in December 2000. This is a long-term monitoring line conducted off the coast of Elands/St Helena Bay on the west coast of South Africa. SHBML started in 2000 as a BENEFIT-driven project on "shipboard monitoring" which linked with similar lines run in Namibia and Angola. The aims were to obtain seasonal and interannual information on the hydrology and productivity of the area. It was incorporated under...
St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 089, January 2001
This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Algoa Voyage 089 in January 2001. This is a long-term monitoring line conducted off the coast of Elands/St Helena Bay on the west coast of South Africa. SHBML started in 2000 as a BENEFIT-driven project on "shipboard monitoring" which linked with similar lines run in Namibia and Angola. The aims were to obtain seasonal and interannual information on the hydrology and productivity of the area. It was incorporated under the...
Raw underway Thermosalinograph (TSG) observations from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) on Algoa Voyage 265, September 2019
Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between 30 September 2019 and 16 October 2019 during the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) cruise on the RS Algoa Voyage 265. A SeaBird SBE45 TSG is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the...
Raw underway Thermosalinograph (TSG) observations from the SEAmester and Agulhas System Climate Array (ASCA) Cruise on SA Agulhas II Voyage 058, June 2023
Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between 20 June and 29 June 2023 during the SEAmester and Agulhas System Climate Array (ASCA) Cruise on the SA Agulhas II Voyage 058. A SeaBird SBE45 TSG is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are...