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Raw CTD data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 219, October 2015

This is raw Conductivity, Temperature, Depth (CTD) data from the West Coast Cetacean Distribution and Abundance Survey 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, Department of Agriculture, Forestry and Fisheries (DAFF), National Oceanic and Atmospheric Administration (USA), Aqualie Institute (Brazil) and Oregon State University (USA). The greater programme is titled "The ecology of Humpback whales Megaptera novaeangliae in South Africa" and has two components, the east coast and west coast components. This cruise focused on the west coast humpback whales.

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Raw CTD data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 231, October 2016

Raw Conductivity, Temperature, Depth (CTD) data for the 2016 West Coast Cetacean Cruise. The survey 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 of Agriculture, Forestry and Fisheries (DAFF), National Oceanic and Atmospheric Administration (USA), Aqualie Institute (Brazil) and Oregon State University (USA). The greater programme is titled "Large whale research: genetic relatedness, stock identification, abundance, feeding and migratory behavious". The large whale research programme has two components, the east coast and west coast components. This cruise focused on the west...

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Raw CTD data from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 221, November 2015

This is raw Conductivity, Temperature, Depth (CTD) data from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 221, 30 November to 14 December, 2015. SAMBA forms part of the South African component of the International South Atlantic Meridional Overturning Circulation project (SAMOC-SA), which aims to characterise the time-mean and time-varying components of the SAMOC in the South Atlantic Ocean and monitor the variability of the main Southern Ocean frontal systems associated with the Antarctic Circumpolar Current (ACC), south of Africa.

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Raw CTD data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 214, February 2015

This is raw Conductivity, Temperature, Depth (CTD) data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 214 in the South-East Atlantic Ocean from 16 to 25 February, 2015. 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, microbial, seabird and benthic ecosystem indicators, used for ecosystem-based management.

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Raw CTD data from the Moorings and Monitoring Lines Cruise: Cape Point and Port St Johns on the Algoa Voyage 204, November 2013

This is raw Conductivity, Temperature, Depth (CTD) data from the Moorings and Monitoring Lines Cruise: Cape Point and Port St Johns on the Algoa Voyage 204, 25 November to 6 December, 2013. 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.

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Raw CTD data from the Integrated Ecosystem Programme cruise: Southern Benguela (IEP:SB) on the Algoa Voyage 232, November 2016

This is raw Conductivity, Temperature, Depth (CTD) data from the Integrated Ecosystem Programme (IEP) cruise: Southern Benguela 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, microbial, seabird and benthic ecosystem indicators, used for ecosystem-based management.

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Raw CTD data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 211, October 2014

This is raw Conductivity, Temperature, Depth (CTD) data collected on the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 211, 28 October to 10 November 2014. The cruise operated on the shelf and slope regions off the West Coast of South Africa, between Dassen Island and Groenriviermond. The major objective of this cruise was to survey the abundance and distribution of cetaceans, in particular humpback whales, within the study area on the west coast. This objective, along with the research aims and proposed methodologies, are consistent with internationally accepted protocols. This work provided hands-on experience with logistical and technical cetacean specific problems associated with dedicated cetacean cruises. This work was a collaboration with the Mammal Research Institute, University of Pretoria, and the Department of Agriculture, Fisheries and Forestry.

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Raw CTD data for the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 210, September 2014

This is raw Conductivity, Temperature, Depth (CTD) data for the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 210,15 to 29 September, 2014. This cruise had a primary scientific objective of extending the SAMBA mooring line, the offshore section of the Cape Point long-term monitoring line, and deploying the four offshore tall moorings.

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Preliminary processed CTD data from the Southern Ocean Seasonal Cycle Experiment (SOSCEx) III Winter Cruise on the SA Agulhas II Voyage 016, July 2015

This is processed Conductivity, Temperature, Depth (CTD) data from the Southern Ocean Seasonal Cycle Experiment (SOSCEx) III Winter Cruise on the SA Agulhas II Voyage 016, 22 July to 15 August, 2015. The third Southern Ocean Seasonal Cycle Experiment (SOSCEx) III is a high-resolution full seasonal cycle experiment using integrated observational and modeling platforms. A novel aspect of SOSCEx III is the integrated multi-platform approach, which aims to explore new questions about the climate sensitivity of carbon and ecosystem dynamics in the Southern Ocean and how these processes are parameterized in models. This winter 2015 cruise can be divided into two primary tracks, the GoodHope line, between Cape Town and the ice edge along the Greenwich Meridian, and the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) line, between Cape Town and the Greenwich Meridian, at 34.5 degrees South longitude. This dataset was processed using older standards which may not...

DOI: 10.15493/DEA.MIMS.16112024

Processed CTD continuous observations from the West Coast Hake Biomass Survey on the Africana Voyage 109, January 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 19 January and 08 February 1993, during voyage 109 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.13112024

Processed CTD continuous observations from the Pelagic Biomass Survey on the Africana Voyage 108, November 1992

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 05 November and 02 December 1992, during voyage 108 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa and the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern 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 1983 and 2000.

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Raw CTD data from the Pelagic Biomass Survey on the Africana Voyage 290, October 2016

This is raw 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) 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, although recent surveys (~2009 onwards) have included much less environmental sampling than earlier years. The survey uses hydro-acoustics to estimate fish density and abundance, and midwater trawling to identify acoustic targets and to obtain length frequency and other biological...

DOI: 10.15493/DEA.MIMS.05292023

Processed CTD discrete observations from the South Coast Hake Biomass Survey on the Africana Voyage 063, May 1988

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast 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 pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. 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; to investigate the environment and interrelationships of hake and other demersal species in various depth strata; to study demersal community relationships; to investigate the occurence, distribution and abundance of squid; to...

DOI: 10.15493/DEA.MIMS.05212023

Processed CTD discrete observations from the Anchovy and Pilchard Spawning Stock Survey on the Africana Voyage 057, November 1987

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 05 November and 30 November 1987, during the Anchovy and Pilchard Spawning Stock Survey on the Africana Voyage 057, 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 pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. The main objective of the cruise was to determine acoustically the biomass of the pilchard and anchovy spawning stocks between Hondeklip Bay and the eastern end of the Agulhas Bank. Additionally, the relationship between the distribution of pelagic fish, their eggs and the water temperature was investigated, and chemical samples were taken along lines...

DOI: 10.15493/DEA.MIMS.03632023

Processed CTD discrete observations from the Anchovy Recruitment on the Africana Voyage 047, August 1986

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 04 August and 29 August 1986, during the Pelagic Winter Survey on the Africana Voyage 047, in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa and in 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 1983 and 2000. The main objectives of the cruise were a direct assessment of the biomass of adult anchovy and pilchard on the South and East coasts by acoustic survey, supplemented by aerial fish spotting (East Coast only); an acoustic investigation of the distribution and behaviour of other pelagic fish of commercial importance; an investigation of the relationship between anchovy, pilchard and the...

DOI: 10.15493/DEA.MIMS.15092023

Processed CTD discrete observations from the Anchovy and Pilchard Recruitment Survey on the Africana Voyage 121, May 1994

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 03 May and 27 May 1994, during Voyage 121 on the FRS Africana, in the Benguela Current Large Marine ecosystem (BCLME) on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.15082023

Processed CTD continuous observations from the Anchovy and Pilchard Recruitment Survey on the Africana Voyage 121, May 1994

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 03 May and 27 May 1994, during Voyage 121 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.14992023

Processed CTD discrete observations from the West Coast Hake Biomass on the Africana Voyage 118, January 1994

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 04 January and 26 January 1994 during Voyage 118 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa and the Benguela Current Large Marine ecosystem (BCLME) on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.14982023

Processed CTD continuous observations from the West Coast Hake Biomass on the Africana Voyage 118, January 1994

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 04 January and 26 January 1994 during Voyage 118 on the FRS Africana, in the Agulhas Current Large Marine Ecosysten (ACLME) region on the south coast of Southern Africa and the Benguela Current Large Marine Ecosystem (BCLME) on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.14972023

Processed CTD discrete observations from the Pelagic Fish Spawner Biomass Survey on the Africana Voyage 117, November 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 09 November and 04 December 1993 during Voyage 117 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa and the Benguela Current Large Marine ecosystem (BCLME) on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.14962023

Processed CTD continuous observations from the Pelagic Fish Spawner Biomass Survey on the Africana Voyage 117, November 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 09 November and 04 December 1993 during Voyage 117 on the FRS Africana, in the Agulhas Current Large Marine Ecosysten (ACLME) region on the south coast of Southern Africa and the Benguela Current Large Marine Ecosystem (BCLME) on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.14932023

Processed CTD discrete observations from the student training and acoustic trials on the Africana Voyage 115, July 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 13 July and 16 July 1993 during Voyage 115 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern 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 1983 and 2000.

DOI: 10.15493/DEA.MIMS.14922023

Processed CTD continuous observations from the student training and acoustic trials on the Africana Voyage 115, July 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 13 July and 16 July 1993 during Voyage 115 on the FRS Africana, in the Benguela Current Large Marine Ecosysten (BCLME) region on the west coast of Southern 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 1983 and 2000.

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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) 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, although recent surveys (~2009 onwards) have included much less environmental sampling than earlier years. The survey uses hydro-acoustics to estimate fish density and abundance, and midwater trawling to identify acoustic targets and to obtain length frequency and other...

(No DOI)

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) 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, although recent surveys (~2009 onwards) have included much less environmental sampling than earlier years. The survey uses hydro-acoustics to estimate fish density and abundance, and midwater trawling to identify acoustic targets and to obtain length frequency and other...

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