Marine Information Management System

DOI: 10.15493/DEA.MIMS.22112024

Raw temperature data for long-term observations of bottom temperatures at Bassas da India, Mozambique Channel (August 2003 - September 2007)

Here we present raw temperatures from Southern Africa, Underwater Temperature Recorders (UTRs) located at a depth of 20m off Bassas da India (21.4385°S 39.6707°E), along the east coast of Southern Africa, between 15 August 2003 and 15 September 2007. At selected sites around UTRs have been used to obtain long-term records of bottom temperature in the nearshore environment, at depths ranging from 2m to 34m. Note that for some deployments, two UTRs were deployed to simultaneously record bottom...

DOI: 10.15493/DEA.MIMS.24112024

Raw temperature data for long-term observations of bottom temperatures at Bassas da India, Mozambique Channel (March 2012 - May 2013)

Here we present raw temperatures from Underwater Temperature Recorders (UTRs) located at a depth of 20m off Bassas da India (21.4385°S 39.6707°E), along the east coast of Southern Africa, between 16 March 2012 and 06 May 2013. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperature in the nearshore environment, at depths ranging from 2m to 34m. Note that for some deployments, two UTRs were deployed to simultaneously record bottom...

DOI: 10.15493/DEA.MIMS.23112024

Long-term observations of hourly bottom temperatures at Bassas da India, Mozambique Channel (March 2012 - May 2013)

Here we present processed hourly subsurface temperatures from Underwater Temperature Recorders (UTRs) located at a depth of 20m off Bassas da India (21.4385°S 39.6707°E), along the east coast of Southern Africa, between 16 March 2012 and 06 May 2013. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperature in the nearshore environment, at depths ranging from 2m to 34m. Note that for some deployments, two UTRs were deployed to...

DOI: 10.15493/DEA.MIMS.21112024

Long-term observations of hourly bottom temperatures at Bassas da India, Mozambique Channel (August 2003 - September 2007)

Here we present processed hourly subsurface temperatures from Underwater Temperature Recorders (UTRs) located at a depth of 20m off Bassas da India (21.4385°S 39.6707°E), along the east coast of Southern Africa, between 15 August 2003 and 15 September 2007. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperature in the nearshore environment, at depths ranging from 2m to 34m. Note that for some deployments, two UTRs were deployed to...

DOI: 10.15493/DEA.MIMS.19112024

Raw temperature data for long-term observations of bottom temperatures at Fort-Dauphin (May 2013 - January 2017)

Here we present raw temperatures from Underwater Temperature Recorders (UTRs) located at a depth of 20m off Fort-Dauphin (25.0051°S 47.0972°E), along the east coast of Southern Africa, between 03 May 2013 and 18 January 2017. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperature in the nearshore environment, at depths ranging from 2m to 34m. Note that for some deployments, two UTRs were deployed to simultaneously record bottom...

DOI: 10.15493/DEA.MIMS.18112024

Long-term observations of hourly bottom temperatures at Fort-Dauphin (May 2013 - January 2017)

Here we present processed hourly subsurface temperatures from Underwater Temperature Recorders (UTRs) located at a depth of 20m off Fort-Dauphin (25.0051°S 47.0972°E), along the east coast of Southern Africa, between 03 May 2013 and 18 January 2017. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperature in the nearshore environment, at depths ranging from 2m to 34m. Note that for some deployments, two UTRs were deployed to...

DOI: 10.15493/DEA.MIMS.02112024

Processed CTD discrete observations from the South Coast Demersal Biomass Survey on the Africana Voyage 072, May 1989

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 10 May and 29 May 1989, during voyage 072 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south 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.01112024

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...

DOI: 10.15493/DEA.MIMS.17112024

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

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast 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.11112024

Processed CTD discrete observations from the Horse Mackerel Hydroacoustic Survey on the Africana Voyage 107, October 1992

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 07 October and 23 October 1992, during voyage 107 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south 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.20112024

Experimental manipulations of the density of Cymbula granatina on rocky shore community

Densities of a commonly-harvested intertidal limpet Cymbula granatina were manipulated at two sites within a no-take marine protected area on the west coast of the Cape Peninsula in South Africa, using four treatment levels ranging from zero to maximum natural densities, together with control plots, to evaluate the effects of different harvesting intensities on rocky shore community composition. Following removal or thinning of C. granatina, community composition changed: cover of corticated...

DOI: 10.15493/DEA.MIMS.08112024

Processed CTD discrete observations from the South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 02 September and 23 September 1992, during voyage 106 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south 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.07112024

Processed CTD continuous observations from the South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 02 September and 23 September 1992, during voyage 106 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south 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.05112024

Processed CTD discrete observations from the Benguela Current Sources and Transport (BEST 1) on the Africana Voyage 105, June 1992

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 16 June and 05 July 1992, during voyage 105 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.04112024

Processed CTD continuous observations from the Benguela Current Sources and Transport (BEST 1) on the Africana Voyage 105, June 1992

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 16 June and 05 July 1992, during voyage 105 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.11892023

West Coast Hake Biomass on the Africana Voyage 079, January 1990

The West Coast Hake Biomass Survey on the Africana Voyage 079 was conducted from 4 to 29 January 1990. 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 other demersal species, to make some experimental trawls in deep water to determine hake distribution limits and...

DOI: 10.15493/DEA.MIMS.23072024

Processed CTD discrete observations from the South Coast Demersal Biomass Survey on the Africana Voyage 095, September 1991

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 12 September and 03 October 1991, during voyage 095 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south 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.21072024

South Coast Demersal Biomass Survey on the Africana Voyage 095, September 1991

The South Coast Demersal Biomass Survey on the Africana Voyage 095 was conducted on 12 September 1991 to 3 October 1991. The main objective of the survey was to conduct a random stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species with emphasis on 'inshore' fishing areas for recruitment estimates; to investigate the hydrology and current profiles of the South Coast and to relate this to the distribution...

DOI: 10.15493/DEA.MIMS.20072024

Processed CTD discrete observations from the South Coast Demersal Biomass Survey on the Africana voyage 093, June 1991

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 07 June and 05 July 1991, during voyage 093 on the Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south 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.18072024

South Coast Demersal Biomass Survey on the Africana Voyage 093, June 1991

The South Coast Demersal Biomass Survey on the Africana Voyage 093 was conducted from 7 June 1991 to 5 July 1991. The main objectives of the cruise were to conduct a random stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species; to investigate the hydrology and current profiles of the South Coast and to relate this to the distribution of the major demersal trawl species; this will include five transects...

DOI: 10.15493/DEA.MIMS.15072024

Anchovy Recruitment Survey on the Africana Voyage 092, May 1991

The Anchovy Pilchard Recruitment Survey on the Africana Voyage 092 was conducted on the 7 to the 24 May 1991. The main objectives of the cruise were to estimate the abundance and size-structure of anchovy; a description of the distribution and behaviour patterns of anchovy and pilchard of recruits and the oceanographic variables on these; a collection of biological data on pelagic fish species; an examination of the distribution, abundance and production of plankton in relation to the...

DOI: 10.15493/DEA.MIMS.17072024

Processed CTD discrete observations from the Anchovy Recruitment Survey on the Africana Voyage 092, May 1991

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 07 May and 24 May 1991, during voyage 092 on the 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.130072024

Short-term observations of hourly thermistor string temperatures on the continental slope off Natal Bight, along the east coast of South Africa at location Dbn02 (December 2009 - August 2010)

Between 2009 and 2013, multiple short-term mooring deployments were conducted to determine the oceanographic characteristics and variability along the KwaZulu-Natal (KZN) Bight, along the east coast of South Africa. One mooring (Sez01) was deployed off Sezela, about 79km south of Durban, at a depth of 30m, between June 2009 and July 2010. Three moorings (Dbn01, Dbn02, and Dbn03) were deployed off Durban at depths of 50m, 420m, and 570m, respectively, between January 2009 and September 2010,...

DOI: 10.15493/DEA.MIMS.78072024

Short-term observations of currents and sub-surface temperatures on the continental shelf and slope along the KwaZulu-Natal Bight, along the east coast of South Africa (project period 2009-2013)

The African Coelacanth Ecosystem Programme (ACEP) III project on Ecosystem Processes in the KwaZulu-Natal (KZN) Bight, jointly funded by the South African National Research Foundation (NRF) and the Department of Forestry, Fisheries and the Environment (DFFE), with collaborative support from the Council for Scientific and Industrial Research (CSIR), was conducted from 2009 to 2013, in order to improve our understanding of the drivers of ecological functioning and biodiversity of the KZN...

DOI: 10.15493/DEA.MIMS.129072024

Short-term observations of hourly thermistor string temperatures on the continental slope off Natal Bight, along the east coast of South Africa at location Dbn02 (March 2009 - July 2009)

Between 2009 and 2013, multiple short-term mooring deployments were conducted to determine the oceanographic characteristics and variability along the KwaZulu-Natal (KZN) Bight, along the east coast of South Africa. One mooring (Sez01) was deployed off Sezela, about 79km south of Durban, at a depth of 30m, between June 2009 and July 2010. Three moorings (Dbn01, Dbn02, and Dbn03) were deployed off Durban at depths of 50m, 420m, and 570m, respectively, between January 2009 and September 2010,...

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