African Coelacanth Ecosystem Programme (ACEP) (3)
Integrated Ecosystem Programme: Southern Benguela (IEP: SB) (26)
Marion Island Relief Voyage (19)
Port St Johns CTD and Bathymetry Survey (1)
South Coast Moorings and Monitoring Lines Cruise (10)
Southern Ocean Seasonal Cycle Experiment (SOSCEx) (4)
Winter Cruise (7)
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) (170) ✕
South Coast Mooring Cruise on the Algoa Voyage 208, July 2014
The South Coast Mooring Cruise was conducted on the Algoa Voyage 208, 9 to 24 July 2014. Two ADCP current moorings and a thermistor chain were deployed along the Cape Point Monitoring line. Cape Recife ADCP current mooring was recovered. Four ADCP current moorings were recovered and serviced in Algoa Bay. Port St. Johns ADCP current mooring was recovered. Port St. Johns Conductivity, Temperature, Depth (CTD)/bongo survey lines were completed. SVP drifters in the Agulhas Current core were...
South Coast Demersal Biomass Survey on the Africana Voyage 102, April 1992
The South Coast Demersal Biomass Survey was conducted on the Africana Voyage 102 from 31 March to 21 April 1992. The 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 included five transects extending...
West Coast Hake Biomass Survey on the Africana Voyage 100, February 1992
The West Coast Hake Biomass Survey was conducted on the Africana Voyage 100 from 06 February to 03 March 1992. The objectives of the cruise were to survey by means of bottom trawling the abundance of 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 zooplankton scattering layers and their influence on the...
Anchovy Recruitment Survey on the Africana Voyage 081, May 1990
The Anchovy Recruitment Survey on the Africana Voyage 081 was conducted from 07-12 May 1990. The objectives of the survey were to attain an estimation of the abundance and size-structure of anchovy recruits; describe the distribution and behaviour patterns of anchovy recruits and the influence of oceanographic variables on these; collect biological data on pelagic fish species; examine the distribution, abundance and production of zooplankton in relation to the environment, and to recruit...
Horse Mackerel Hydroacoustic Pilot Survey on the Africana Voyage 096, October 1991
The Horse Mackerel Hydroacoustic Pilot Survey was conducted on the Africana Voyage 096 from 14-28 October 1991. The objectives of the cruise were to test the feasibility of obtaining an acoustic estimate of adult horse mackerel; to assess the ability to determine target detectability, target identification and target strength; to obtain an estimate of horse mackerel abundance in a sub-region. The size of the sub-region were to be determined by the time available and on the results of the...
South Coast Demersal Biomass Survey on the Africana Voyage 082, May 1990
The South Coast Demersal Biomass Survey on the Africana Voyage 082 was conducted from 23 May - 13 June 1990. The objectives of the cruise were to survey by bottom-trawling the abundance of adult and recruiting hake, sole and other trawl target species; to make experimental bottom-trawls in deep water to establish the limit of hake distribution, and to collect deep-water specimens of fish and squid; to investigate the environment and ecological interrelationships of hake and other demersal...
Pelagic Pre-Recruit Mesopelagic Biomass Survey on the Africana Voyage 090, March 1991
The Pelagic Pre-Recruit Mesopelagic Biomass Survey was conducted on the Africana Voyage 090 from 05-19 March 1991. The objectives of the cruise were to get an estimation of the biomass and population structure of epi-pelagic pre-recruit fish off the West Coast by means of echo-integration and midwater trawling; get an estimation of an epi-pelagic pre-recruit biomass index using quantitative Methot trawls; get an estimation of the biomass and population structure of mesopelagic fish using...
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...
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...
South Coast Demersal Biomass Survey on the Africana Voyage 111, April 1993
The South Coast Biomass Survey on the Africana Voyage 111 was conducted from 15 April 1993 to May 12 1993. The main objectives of the cruise were 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; 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 included five transects...
Anchovy Recruitment Survey on the Africana Voyage 112, May 1993
The Anchovy Recruitment Survey on the Africana Voyage 112 was conducted from 18 May 1993 to June 05 1993. The main objectives of the cruise were to estimate the abundance and size-structure of anchovy and pilchard recruits; to describe the distribution and anchovy and pilchard recruits and the influence of oceanographic variables on these. To collect biological data on pelagic fish species and to examine the distribution, abundance and production of plankton in relation to the environment...
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 209, August 2014
The Integrated Ecosystem Programme: Southern Benguela was conducted on the Algoa Voyage 209, 5 to 15 August, 2014. The Integrated Ecosystem Programme: Southern Benguela (IEP:SB) 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,...
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...
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...
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...
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 216, May 2015
The Integrated Ecosystem Programme: Southern Benguela was conducted on the Algoa Voyage 216, 06 to 15 May, 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,...
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 235, February 2017
This Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise 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,...
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 214, February 2015
The Integrated Ecosystem Programme: Southern Benguela (IEP:SB) was conducted on the 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...
South Coast Demersal Biomass Survey on the Africana Voyage 086, September 1990
South Coast Demersal Biomass Survey was conducted on the Africana Voyage 086 from 07 September - 02 October 1990. The objectives of the cruise were to survey by means of bottom trawling (under 200 m) the abundance and distribution of adult and juvenile hake, sole, squid, horse mackerel and other demersal target species and to make biomass estimates of each; to study the hydrological environment using the CTD and ADCP and to relate this information to the catches of hake , sole, squid, horse...
Anchovy Recruitment Survey on the Africana Voyage 103, May 1992
The Anchovy Recruitment Survey was conducted on the Africana Voyage 103 from 12 - 28 May 1992. The main objectives of the cruise were to estimate the abundance and size-structure of anchovy and pilchard recruits; to describe the distribution and behaviour patterns of anchovy and pilchard recruits and the influence of oceanographic variables on these; to collect biological data on pelagic fish species and to examine the distribution, abundance and production of plankton in relation to the...