CTD (148)

248 datasets found Page 2 of 10
DOI: 10.15493/DEA.MIMS.04352023
Processed CTD discrete observations from the South Coast Hake Biomass Survey on the Africana Voyage 048, September 1986

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 12 September and 03 October 1986, during the South Coast Hake Biomass Cruise on the Africana Voyage 048, in the southern part of 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 objective of the cruise was to survey by means of trawling the abundance of adult and recruiting hake, sole and other trawl target species; an investigation of the environment and interrelationships of hake and other demersal species in various depth strata; to investigate the occurence, distribution and abundance of squid and squid larvae; and to investigate the occurence of linefish species in shallow waters.

DOI: 10.15493/DEA.MIMS.01852023
Anchovy Recruitment on the Africana Voyage 047, August 1986

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 hydrobiological environment, specifically water temperature and plankton distribution; a determination of the extent to which anchovy recruits penetrated onto the South Coast, as follow-up to recruit surveys on the West Coast in May and June (Voyages 44 and 45) and a study of the broad physical and chemical features of the Agulhas Bank and East Coast continental shelf in winter.

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.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 mesopelagic species using RMT 8 nets.

DOI: 10.15493/DEA.MIMS.15132023
Processed CTD discrete observations from the South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey on the Africana Voyage 125, September 1994

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 21 September and 18 October 1994, during Voyage 125 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.15072023
South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey on the Africana Voyage 125, September 1994

The South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey was conducted on the Africana 125 from 21 September to 18 October 1994. The primary objective is to conduct a stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species on the Agulhas Bank up to 200m, but biased in terms of number of stations in depths up to 120m.

DOI: 10.15493/DEA.MIMS.15122023
Processed CTD continuous observations from the South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey on the Africana Voyage 125, September 1994

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 21 September and 18 October 1994, during Voyage 125 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.15112023
Processed CTD discrete observations from the Demersal South Coast Inshore Biomass Survey on the Africana Voyage 122, June 1994

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 06 June and 05 July 1994, during Voyage 122 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.15062023
Demersal South Coast Inshore Biomass Survey on the Africana Voyage 122, June 1994

The Demersal South Coast Inshore Biomass Survey was conducted on the Africana 122 from 6 June to 5 July 1994. The primary objective of this cruise was to conduct a stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species on the Agulhas Bank.

DOI: 10.15493/DEA.MIMS.15102023
Processed CTD continuous observations from the Demersal South Coast Inshore Biomass Survey on the Africana Voyage 122, June 1994

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 06 June and 05 July 1994, during Voyage 122 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.15052023
Anchovy and Pilchard Recruitment Survey on the Africana Voyage 121, May 1994

The Anchovy and Pilchard Recruitment Survey was conducted on the Africana Voyage 121 from 3 to 27 May 1994. The cruise objectives included an estimation of the abundance and size-structure of anchovy and pilchard recruits, a description of distribution and behaviour patterns of anchovy and pilchard recruits and the influence of oceanographic variables on these, the collection of biological data on pelagic fish species and an examination of the distribution and abundance of plankton in relation to the environment and to recruit distribution and condition.

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.14912023
West Coast Hake Biomass on the Africana Voyage 118, January 1994

The West Coast Hake Biomass cruise was conducted on the Africana 118 from 4 to 26 January 1994. The objectives of the cruise were to survey by means of bottom trawling the abundance of adult and recruiting hake, and other demersal species on the West Coast of South Africa; to investigate the environmental and ecological interrelationships of hake and other demersal species; to study the biology of chondrichthyan species; to investigate the maturity and feeding biology of horse mackerel; to obtain information on the hydrology and currents on the West Coast; to locate and attempt recovery of the offshore current meter/sediment trap array deployed 686m off Hondeklip Bay; to sample catches for hake sex ratios and frequency of gill parasites; to investigate the occurrence, distribution, reproduction and abundance of squid; to investigate the distribution and biology of demersal species in water at depths of greater than 500m by means of demersal trawl and to study the parasites of small...

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.14902023
Pelagic Fish Spawner Biomass Survey on the Africana Voyage 117, November 1993

The Pelagic Fish Spawner Biomass Survey was conducted on the Africana 117 from 9 November to 4 December 1993. The objectives included an estimation of the biomass and population length structure of anchovy, pilchard, round herring and horse mackerel off South Africa by means of echo-integration and midwater trawling; determining the age-composition of the anchovy population; estimating of anchovy biomass by means of the egg production method and a trial estimation of pilchard biomass by means of the egg production method.

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.14952023
Processed CTD discrete observations from the South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey on the Africana Voyage 116, September 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 01 September and 30 September 1993 during Voyage 116 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.14892023
South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey on the Africana Voyage 116, September 1993

The South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey was conducted on the Africana Voyage 116 from 1 to 30 September 1993. The primary objective of the cruise was to conduct a stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species on the Agulhas Bank up to 200m, but biased in terms of number of stations in depths up to 120m.

DOI: 10.15493/DEA.MIMS.14942023
Processed CTD continuous observations from the South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey on the Africana Voyage 116, September 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 01 September and 30 September 1993 during Voyage 116 on the FRS Africana, in the Agulhas Current Large Marine Ecosysten (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.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.14882023
Student training and acoustic trials on the Africana Voyage 115, July 1993

The student training and acoustic trials cruise was conducted on the Africana Voyage 115 from 13 to 16 July 1993. The objectives of the cruise were training the third year / honours students and pupil technicians, conducting pollution sampling in Table Bay and development of acoustic software.

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.

248 datasets found Page 2 of 10

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Temporal extent