Please note that this is a staging site.
522 datasets found Page 18 of 21
(No DOI)
Processed Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 235, February 2017

This is processed Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise which was conducted on the Algoa Voyage 235 from 16 February 2017 to 28 February, 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 healthy and well-functioning ocean environment. The overarching objective is to enhance understanding in process studies by assessing the importance, timing and magnitude of mechanisms and processes that influence the Southern Benguela ecosystem structure and functioning, including the climate variability.

(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.

(No DOI)
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.

(No DOI)
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Echo sounder data from ACEP Deep Secrets: The Outer Shelf and Slope Ecosystems of the Eastern Cape on the Algoa Voyage 230, September 2016

This is Echo Sounder data collected on the ACEP Deep Secrets Cruise which 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 petroleum industries on marine offshore communities.

DOI: 10.15493/DEA.MIMS.61122022
Processed CTD continuous observations from the Anchovy Spawning Stock Survey on the Africana Voyage 038, November 1985

This is processed downcast Conductivity-Temperature-Depth (CTD) continuous data from the Anchovy Spawning Stock Survey on the Africana Voyage 038, collected between 11 and 29 November 1985. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa and the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of South Africa. 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 between the distribution of pelagic fish, eggs and water temperature.

(No DOI)
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Raw TSG data from ACEP Deep Secrets: The Outer Shelf and Slope Ecosystems of the Eastern Cape on the Algoa Voyage 230, September 2016

This is raw Thermosalinograph (TSG) data collected on the ACEP Deep Secrets Cruise which 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 petroleum industries on marine offshore communities.

(No DOI)
No Download
Raw SADCP data from ACEP Deep Secrets: The Outer Shelf and Slope Ecosystems of the Eastern Cape on the Algoa Voyage 230, September 2016

This is raw Shipboard Acoustic Doppler Current Profiler (SADCP) data collected on the ACEP Deep Secrets Cruise which 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 petroleum industries on marine offshore communities.

DOI: 10.15493/DEA.MIMS.59122022
Processed CTD continuous observations from the South Coast Hake Biomass on the Africana Voyage 036, October 1985

This is processed downcast Conductivity-Temperature-Depth (CTD) continuous data from the South Coast Hake Biomass on the Africana Voyage 036, collected between 15 and 26 October 1985. The cruise operated in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of South Africa. 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 already been established. The second objective was to investigate, by trawling, the depth distribution of squid in the area 23 30'E and 24 30'E, from as close as possible to the coast (i.e. as shallow...

DOI: 10.15493/DEA.MIMS.56122022
Processed CTD discrete observations from the Spanish-Namibian Environmental Cruise (SNEC) on the Africana Voyage 035, September 1985

This is processed Conductivity-Temperature-Depth (CTD) discrete 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.

DOI: 10.15493/DEA.MIMS.55122022
Processed CTD continuous observations from the Spanish-Namibian Environmental Cruise (SNEC) on the Africana Voyage 035, September 1985

This is processed downcast 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.

DOI: 10.15493/DEA.MIMS.52122022
Processed CTD discrete observations from the West Coast Hake Biomass on the Africana Voyage 033, July 1985

This is processed Conductivity-Temperature-Depth (CTD) discrete data from the West Coast Hake Biomass on the Africana Voyage 033, collected between 1 and 21 July 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 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.51122022
Processed CTD continuous observations from the West Coast Hake Biomass on the Africana Voyage 033, July 1985

This is processed downcast Conductivity-Temperature-Depth (CTD) continuous data from the West Coast Hake Biomass on the Africana Voyage 033, collected between 1 and 21 July 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 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.48122022
Processed CTD discrete observations from the West Coast Hake Biomass on the Africana Voyage 028, January 1985

This is processed Conductivity-Temperature-Depth (CTD) discrete 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 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.

DOI: 10.15493/DEA.MIMS.47122022
Processed CTD continuous observations from the West Coast Hake Biomass on the Africana Voyage 028, January 1985

This is processed downcast 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 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.

(No DOI)
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Raw TSG data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 231, October 2016

Raw Thermosalinograph (TSG) 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 coast humpback whales.

(No DOI)
No Download
Raw Echo Sounder data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 231, October 2016

Raw Echo Sounder 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 behaviours". The large whale research programme has two components, the east coast and west coast components. This cruise focused on the west coast humpback whales.

(No DOI)
No Download
Raw SADCP data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 231, October 2016

Raw Shipboard Acoustic Doppler Current Profiler (SADCP) 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...

DOI: 10.15493/DEA.MIMS.44122022
Processed CTD discrete observations from the Plankton Frontal Zone on the Africana Voyage 027, December 1984

This is processed Conductivity-Temperature-Depth (CTD) discrete 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.

DOI: 10.15493/DEA.MIMS.43122022
Processed CTD continuous observations from the Plankton Frontal Zone on the Africana Voyage 027, December 1984

This is processed downcast 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.

DOI: 10.15493/DEA.MIMS.40122022
Processed CTD discrete observations from the West Coast Physical Oceanography on the Africana Voyage 025, October 1984

This is processed Conductivity-Temperature-Depth (CTD) discrete data from the West Coast Physical Oceanography on the Africana Voyage 025, collected between 25 and 31 October 1984. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. 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 obtaining Conductivity-Temperature-Depth (CTD) data at these sites; collecting chemical samples and CTD data along a line between Port Nolloth to the deep current meter site, this included 100ml samples...

DOI: 10.15493/DEA.MIMS.39122022
Processed CTD continuous observations from the West Coast Physical Oceanography on the Africana Voyage 025, October 1984

This is processed downcast Conductivity-Temperature-Depth (CTD) continuous data from the West Coast Physical Oceanography on the Africana Voyage 025, collected between 25 and 31 October 1984. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. 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 obtaining Conductivity-Temperature-Depth (CTD) data at these sites; collecting chemical samples and CTD data along a line between Port Nolloth to the deep current meter site, this included 100ml...

DOI: 10.15493/DEA.MIMS.36122022
Processed CTD discrete observations from the West Coast Hake Biomass on the Africana Voyage 022, July 1984

This is processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast from the West Coast Hake Biomass cruise on the Africana Voyage 022 collected between 3 and 28 July 1984. 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 carry out acoustic target identification of mesopelagic species using RMT-8 nets and to study the community interactions of fish species in the area.

DOI: 10.15493/DEA.MIMS.35122022
Processed CTD continuous observations from the West Coast Hake Biomass on the Africana Voyage 022, July 1984

This is processed downcast Conductivity-Temperature-Depth (CTD) continuous data from the West Coast Hake Biomass cruise on the Africana Voyage 022 collected between 3 and 28 July 1984. 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 carry out acoustic target identification of mesopelagic species using RMT-8 nets and to study the community interactions of fish species in the area.

DOI: 10.15493/DEA.MIMS.21122022
Processed CTD discrete observations from the Plankton Shoal Ecology cruise on the Africana Voyage 020, May 1984

This is processed Conductivity-Temperature-Depth (CTD) discrete data from the Plankton Shoal Ecology cruise on the Africana Voyage 020 collected between 21 May and 29 May 1984. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. This Plankton Shoal Ecology cruise is the second of two and comprised an extensive grid (stations E01-E14), an intensive grid (stations SH01-12 to SH05-24) and a 1x1 nautical mile box grid for time series sampling (stations TS01-18 to TS03-18). Sample data was only collected at the SH and TS stations.

DOI: 10.15493/DEA.MIMS.20122022
Processed CTD continuous observations from the Plankton Shoal Ecology cruise on the Africana Voyage 020, May 1984

This is processed downcast Conductivity-Temperature-Depth (CTD) continuous data from the Plankton Shoal Ecology cruise on the Africana Voyage 020 collected between 21 May and 29 May 1984. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. This Plankton Shoal Ecology cruise is the second of two and comprised an extensive grid (stations E01-E14), an intensive grid (stations SH01-12 to SH05-24) and a 1x1 nautical mile box grid for time series sampling (stations TS01-18 to TS03-18). Sample data was only collected at the SH and TS stations.

522 datasets found Page 18 of 21

Geographic extent

Temporal extent