Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) (486) ✕

486 datasets found Page 5 of 20
(No DOI)
Raw Distributed Data System (DDS) data from the African Coelecanth Ecology Programme (ACEP) Cruise on the Algoa Voyage 130, July 2004

This is raw DDS data from the African Coelecanth Ecology Programme (ACEP) Cruise on the Algoa Voyage 130, July 2004. The area covered includes the Western Indian Ocean; South African East Coast; Delago Bight - Mozambique; Tanzanian Coast; Comoros.

(No DOI)
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.

(No DOI)
Raw SDS data from the Winter Shakedown Cruise on SA Agulhas II Voyage 003, July 2012

This is raw Scientific Data System (SDS) data from the Winter Shakedown Cruise on SA Agulhas II, Voyage 003, 9 July to 6 August, 2012. The cruise started in Cape Town and went down to the GoodHope Line then up to the Prince Edward Islands, on to Port Elizabeth and then back to Cape Town. After the arrival of SA Agulhas II back to South Africa, an inaugural Southern Ocean cruise was undertaken, which included a multidisciplinary program to measure oceanographic and biological parameters that characterise the state of the Southern Ocean in the region of interest to South Africa, along with the ecosystem properties of the major gyres, frontal systems and shelf and plateau areas. Additionally, land-based research on marine mammals and seabirds was undertaken at South Africa’s Prince Edward Islands (PEIs). The aim of the cruise was to test the research vessels capability and its equipment and to increase our understanding with regard to the influences of oceanographic conditions...

(No DOI)
SDS data from the South Coast Mooring Cruise on the Algoa Voyage 208, July 2014

This is Scientific Data System (SDS) data collected on the South Coast Mooring Cruise on the Algoa Voyage 208, 9 to 24 July 2014. 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. Between 1988 and 2011, environmental and plankton sampling was conducted every summer along the South Coast during the annual pelagic spawner biomass surveys. Data collected during these cruises has provided valuable insight into environmental change in this region. There has been significant decline in copepod biomass on both the western and central Agulhas Bank over the past two decades, as well as a decline in the proportion of the large dominant species Calanus agulhensis, resulting in a shift towards a smaller copepod-dominated community. These changes are thought to have been largely...

(No DOI)
Raw South African Weather Service (SAWS) 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 South African Weather Service (SAWS) 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.

(No DOI)
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.

(No DOI)
SDS data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 214, February 2015

This is Scientific Data System (SDS) 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.

(No DOI)
Raw SDS 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 Scientific Data System (SDS) 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.

(No DOI)
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.

(No DOI)
Raw SDS data from the Integrated Ecosystem Programme cruise: Southern Benguela (IEP:SB) on the Algoa Voyage 232, November 2016

This is raw Scientific Data System (SDS) 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.

(No DOI)
Raw SADCP data from SANAE on SA Agulhas II Voyage 014, December 2014

The is raw Shipboard Acoustic Doppler Current Profiler (SADCP) data from the SANAE on SA Agulhas II Voyage 014, 14 December 2014 and 19 February 2015 with full scientific complement.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 54 team to the island and return with the SANAE 53 team.

(No DOI)
SDS data from the South Coast Moorings and Monitoring Lines Cruise on the Algoa Voyage 213, December 2014

This is Scientific Data System (SDS) data from the South Coast Moorings and Monitoring Lines Cruise on Algoa Voyage 213 on 1 to 19 December, 2014. Between 1988 and 2011, environmental and plankton sampling was conducted every summer along the South Coast during the annual pelagic spawner biomass surveys. Data collected during these cruises has provided valuable insight into environmental change in this region. There has been significant decline in copepod biomass on both the western and central Agulhas Bank over the past two decades, as well as a decline in the proportion of the large dominant species Calanus agulhensis, resulting in a shift towards a smaller copepod-dominated community. These changes are thought to have been largely driven by predation by planktivorous fish, which have increased in biomass since the mid-1990s, but increasing sea temperatures have also played a role. It is vital that we continue to monitor the environment and plankton community in key areas off the...

(No DOI)
Raw SDS data from the Moorings and Monitoring Lines Cruise: Cape Point and Port St Johns on the Algoa Voyage 204, November 2013

This is raw Scientific Data System (SDS) 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.

(No DOI)
Raw SDS 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 Scientific Data System (SDS) 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.

(No DOI)
Raw SDS data from the Mooring Cruise on the Algoa Voyage 199, June 2013

This is Scientific Data System (SDS) data from the Mooring Cruise on the Algoa Voyage 199 from 29 June - 3 July, 2013. The area covered includes Slangkop, off of Cape Town, Western Cape, South Africa to Port Edward, south of Durban, KwaZulu-Natal, South Africa.

(No DOI)
Raw CTD data from Port St Johns Conductivity Temperature Depth (CTD) and Bathymetry Survey on Algoa Voyage 198, May 2013

Raw Conductivity, Temperature, Depth (CTD) data from Port St Johns Conductivity, Temperature, Depth (CTD) and Bathymetry Survey on 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 & Coasts was asked to provide input to the recent spate of shark attacks off Port St. Johns. Very little is known about the oceanography except that Roberts et al (2010) discovered during a cruise a lee-trapped cyclonic eddy off Port St. Johns that caused substantial slope upwelling. The cold upwelled water is nutrient-rich and appears to provide a biological pump to the local ecosystem. This cruise will deploy an ADCP in a depth of approximately 80 m to determine the frequency of appearance of this eddy coupled with Conductivity, Temperature, Depth (CTD) lines to measure...

(No DOI)
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.

DOI: 10.15493/dea.mims.26052350
Long-term monitoring of seawater temperature in the microhabitats of intertidal marine invertebrates in Sea Point, South Africa

To better understand the physiological effects of marine invertebrates to changing environmental conditions, long-term monitoring which captures the natural variability of environmental parameters is required. In this way, experimental findings can be related back to field conditions, and better predictions can be made as to how marine invertebrates, particularly in the harsh intertidal, will fair with rising temperature. In May 2020, Cape Sea Urchins, Parechinus angulosus, were collected from intertidal rock pools at Sea Point, which is situated along the southwest coast of South Africa. After chronic incubation in low pH conditions at the Department of Forestry, Fisheries and the Environment (DFFE) Sea Point Research Aquarium, their response to thermal stress was investigated in recent experimental trials. To calculate the thermal window for these marine invertebrates, both habitat temperatures, as well as their threshold temperatures are required. The latter was obtained by...

DOI: 10.15493/dea.mims.26052103
Short-term observations of currents and sub-surface temperatures on the continental shelf and slope off Port Edward, South Africa

Between 2005 and 2015, multiple short-term studies were conducted to determine the characteristics of moorings deployed in a region heavily influenced by the strong Agulhas Current, and to examine circulation patterns across the continental shelf and slope off Port Edward, along the east coast of South Africa.

DOI: 10.15493/DEA.MIMS.26052019
Long-term moored observations at the Prince Edward Island archipelago

Here we present long-term observations from the Prince Edward Island (PEI) shelf moorings. These moorings form part of the South African component of the International South Atlantic Meridional Overturning Circulation project (SAMOC-SA), which aims to characterize 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.

DOI: 10.15493/DEA.MIMS.14712023
Long-term observations of bottom temperatures at Port St. Johns, South Africa

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Port St. Johns. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.15492023
Long-term observations of hourly bottom temperatures at Knysna, South Africa

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Knysna, South Africa. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.15482023
Long-term observations of hourly bottom temperatures at Moheli, Comoros

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Moheli, Comoros. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.15472023
Long-term observations of hourly bottom temperatures at Trou-aux-Biches, Mauritius

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Trou-aux-Biches, Mauritius. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.15462023
Long-term observations of hourly bottom temperatures at Fort-Dauphin, Madagascar

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Fort-Dauphin, Madagascar. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

486 datasets found Page 5 of 20

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