DOI: 10.15493/DEA.MIMS.250121-10
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 255, November 2018

This Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise was conducted on the Algoa Voyage 255 in November 2018. This is a long-term monitoring line conducted off the coast of Kleinsee, Namaqualand, Elands/St Helena Bay and Scarborough on the west coast of South Africa. The IEP:SB in 2013 consolidated a long-term, multi-decadal time-series (from 1951 onward) of information for this important region and has continued monitoring in the form of the IEP:SB. The programme is a...

DOI: 10.15493/DEA.MIMS.07552023
Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 281, March 2022

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 26 March and 29 March 2022, during Voyage 281 on the RS Algoa. 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 continuously interfaced with navigational information. A...

DOI: 10.15493/DEA.MIMS.250121-14
St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 186, September 2011

This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Algoa Voyage 186 in August 2011. 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...

DOI: 10.15493/DEA.MIMS.07562023
Raw underway Thermosalinograph (TSG) observations from Algoa Voyage 281, March 2022

Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected, between 26 March and 29 March 2022, during Voyage 281 on the RS Algoa. 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 continuously interfaced with navigational information. A...

DOI: 10.15493/dea.mims.26052234
West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 219, October 2015

The West Coast Cetacean Distribution and Abundance Survey was conducted on the Algoa Voyage 219, 28 October to 06 November 2015. The cruise operated on the shelf and slope regions off the west coast of South Africa, between Dassen Island and Groenriviermond. This cruise was undertaken for data collection as part of a collaborative project led by the Department of Environmental Affairs (DEA) in collaboration with the Whale Unit, Mammal Research Institute of the University of Pretoria,...

DOI: 10.15493/dea.mims.26052196
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...

(No DOI)
Processed CTD discrete 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 between 1983 and 2000. Here we present processed CTD discrete data from the upcast 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.

DOI: 10.15493/dea.mims.26052263
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...

DOI: 10.15493/dea.mims.26052265
South African National Antarctic Expedition (SANAE) on the SA Agulhas II Voyage 022, November 2016

The South African National Antarctic Expedition (SANAE) is an annual cruise undertaken by the Department of Environmental Affairs (DEA) to change the overwintering teams in Antarctica and to replenish the supplies at the SANAE IV Research base. This voyage was to deliver the SANAE 56 team to the island and return with the SANAE 55 team. The cruise was undertaken between 30 November 2016 and 07 February 2017 with full scientific complement.

DOI: 10.15493/DEA.MIMS.16042024
South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line cruise on the Algoa Voyage 265, September 2019

The South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean was conducted on the Algoa Voyage 265 from 30 September 2019 to 16 October 2019. The cruise operated from Slangkop, off Cape Town, westwards to 0° E, in the South Atlantic Ocean along the SAMBA transect. The objectives of the cruise were to recover, service and re-deploy six (6) Pressure Inverted Echosounders (PIES); complete 37 Conductivity, Temperature, Depth...

DOI: 10.15493/DEA.MIMS.13622023
Processed underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 060, November 2023

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 10 November and 29 November 2023 on the SA Agulhas II Voyage 060. 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 continuously interfaced with navigational information. A...

DOI: 10.15493/DEA.MIMS.13612023
Raw underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 059, September 2023

Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between 16 September 2023 and 17 October 2023 on the SA Agulhas II Voyage 059. 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 continuously interfaced with navigational information. A...

DOI: 10.15493/DEA.MIMS.13632023
Raw underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 060, November 2023

Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between 10 November and 29 November 2023 on the SA Agulhas II Voyage 060. 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 continuously interfaced with navigational information. A...

DOI: 10.15493/dea.mims.26052315
Dedicated West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 188, November 2011

This dedicated West Coast Cetacean Distribution and Abundance Survey was conducted on the Algoa Voyage 188 from 10 to 20 November, 2011.The main objective of this cruise was to develop and test approaches to a dedicated cetacean cruise. This objective, along with the research aims and proposed methodologies are consistent with internationally acceptable protocols. This work provided hands on experience of logistical and technical cetacean specific problems with dedicated cetacean cruises....

DOI: 10.15493/dea.mims.26052219
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...

DOI: 10.15493/DEA.MIMS.17042024
South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line cruise on the Algoa Voyage 295, September 2023

The South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean was conducted on the Algoa Voyage 295 from 18 September 2023 to 08 October 2023. The cruise operated from Slangkop, off Cape Town, westwards to 0° E, in the South Atlantic Ocean along the SAMBA transect. The objectives of the cruise were to recover,service and re-deploy ten (10) Pressure Inverted Echosounders (PIES); complete 37 Conductivity, Temperature, Depth...

DOI: 10.15493/DEA.MIMS.24112022
West Coast Hake Biomass on the Africana Voyage 015, January 1984

The purpose of this cruise was to survey by means of trawling the abundance of recruiting and adult hake between the Orange River and longitude 20° E. The objectives also included investigating the diurnal cycle of hake and other demersal species, to compare the trawling results of R.S. Africana with those of M.F.V. Chicha Touza, the Spanish trawler used for similar surveys, to investigate the environment of hake and other demersal species and to carry out acoustic target identification of...

DOI: 10.15493/dea.mims.26052241
Integrated Ecosystem Programme cruise: Southern Benguela (IEP:SB) on the Algoa Voyage 232, November 2016

The Integrated Ecosystem Programme (IEP) cruise: Southern Benguela was conducted on the Algoa V232, 15 - 26 November, 2016. The Integrated Ecosystem Programme is a multi-disciplinary, multi-institutional platform to undertake relevant science in the Southern Benguela; also functioning as a platform for collaboration and learning. All projects aim to develop an ecosystem indicator that can be used to effectively monitor and understand the Southern Benguela i.e physical, chemical, planktonic,...

DOI: 10.15493/DEA.MIMS.34122022
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.

DOI: 10.15493/dea.mims.26052240
West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 231, October 2016

The 2016 West Coast Cetacean Cruise operated on the shelf and slope regions off the west coast of South Africa, between Area 1 (Dassen Island, 18.23669, -33.457 and Groenriviermond, 17.52061, -30.8277) and Area 2 (North-East Robben Island and Cape Point). This cruise was undertaken for data collection as part of a collaborative project led by the Department of Environmental Affairs (DEA) in collaboration with the Whale Unit, Mammal Research Institute of the University of Pretoria, Department...

DOI: 10.15493/DEA.MIMS.33122022
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...

DOI: 10.15493/DEA.MIMS.29122022
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.

DOI: 10.15493/DEA.MIMS.18042024
SEAmester and Agulhas System Climate Array (ASCA) Scientific Cruise on the SA Agulhas II Voyage 058, June 2023

The SEAmester and Agulhas System Climate Array (ASCA) Scientific Cruise was conducted on the SA Agulhas II Voyage 058 from 19 June 2023 to 29 June 2023. The cruise operated from Cape Town to the ASCA transect (~ 34° S) off Hamburg in the Eastern Cape, South West Indian Ocean. The objective of the SEAmester cruise was to undertake the ASCA transect across the Agulhas Current and sample the 20 CTD stations done previously. In addition, SEAmester shallow (200 m) CTD training stations took place...

DOI: 10.15493/dea.mims.26052239
Deep Secrets: The Outer Shelf and Slope Ecosystems of the Eastern Cape on the Algoa Voyage 230, September 2016

The ACEP Deep Secrets Cruise set out to fill in gaps and shed light on the priority areas and research questions identified during the recent Marine Protected Area and Marine Spatial Planning Initiatives of Operation Phakisa’s Marine Protection and Governance Lab. Using underwater cameras (SkiMonkey and Drop camera), grabs, dredges and a CTD the study aimed to improve our knowledge on marine offshore habitats, as well as to build understanding of the effects of the expanding fishing and...

DOI: 10.15493/dea.mims.26052248
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 252, August 2018

The Integrated Ecosystem Programme: Southern Benguela (IEP:SB) Cruise was conducted on the Algoa Voyage 252 in August 2018. The Integrated Ecosystem Programme: Southern Benguela is a multi-disciplinary, multi-institutional platform to undertake relevant science in the Southern Benguela; also functioning as a platform for collaboration and learning. All projects aim to develop an ecosystem indicator that can be used to effectively monitor and understand the Southern Benguela i.e physical,...