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Title West Coast Demersal Biomass Survey on the Africana Voyage 127, January 1995
Authors

Cooper, Rachel
Department of Forestry, Fisheries and the Environment

Augustyn, Johann
Department of Forestry, Fisheries and the Environment

Publisher Department of Forestry, Fisheries and the Environment (2026)
Contributors

Contact Person: Tutt, Gavin
Department of Forestry, Fisheries and the Environment, email: Gtutt@dffe.gov.za

Project Leader: Lamont, Tarron
Department of Forestry, Fisheries and the Environment

Abstract The West Coast Demersal Biomass Survey on the Africana Voyage 127 took place between 6 January and 3 February 1995. The survey collected bottom trawl catches and hydrological data, including CTD profiles, to estimate the abundance of hake and other demersal species off the west coast of South Africa. Deep-water trawls up to 1200m were conducted between the Orange River and Cape Agulhas. The cruise also included intercalibration trawling with the Norwegian research vessel Dr Fridtjof Nansen.
Methods Demersal biomass sampling was conducted using bottom trawl gear across the west coast of South Africa from the Orange River to Cape Agulhas. Deep-water trawls reaching depths of up to 1200m were used to assess hake and other demersal fish populations. Hydrographic measurements were collected using CTD profiles. The cruise also included intercalibration trawling exercises with the Norwegian research vessel Dr Fridtjof Nansen to ensure consistency in trawl survey methods.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 06 Jan 1995 – 03 Feb 1995
Geographic extent

Benguela Current Large Marine Ecosystem

North: -28.5
South: -34.8
West: 15.0
East: 20.0

Keywords BIOSPHERE , DEMERSAL FISH , MARINE ECOSYSTEMS , OCEANS , SOUTH ATLANTIC OCEAN
Related resources
  • Digital objects included in this collection:
    • Processed CTD continuous observations from the West Coast Demersal Biomass Survey on the Africana Voyage 127, January 1995 (10.15493/DEA.MIMS.32092025)
    • Processed CTD discrete observations from the West Coast Demersal Biomass Survey on the Africana Voyage 127, January 1995 (10.15493/DEA.MIMS.33092025)