Title Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 244, November 2017
Project Integrated Ecosystem Programme: Southern Benguela (IEP: SB)
Authors

Mutshutshu Tsanwani
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientist Production C 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, tsanwanim@environment.gov.za

Publisher Department of Forestry, Fisheries and the Environment (2018)
Contributors

Project Member: Kanyisile Vena
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Technician Production C 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, Kvena@environment.gov.za

Contact Person: Mutshutshu Tsanwani
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientist Production C 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, tsanwanim@environment.gov.za

Abstract First look at Chl-a data from a survey of West Coast of South Africa, Algoa Voyage 244, as part of the Integrated Ecosystem Programme.
Methods This dataset was derived from discrete Chl-a data from the RV Algoa Voyage 244, 22 November 2017 - 27 November 2017. The following fluorometric chlorophyll sampling and analysis procedure was followed:- Tapped 200ml sea water from CTD bottle into sampling bottle.- Filtered through a 2.5cm GFF at a vacuum not exceeding 30cm of Mercury.- Folded filter in half, encasing sample on the inside, using tweezers.- Wrapped in foil of a decent size to accommodate full identification.- Wrote identification clearly on the foil: Grid number and Depth.- Placed all the samples from a station, in order, in a plastic bag or foil wrap and labelled with Voyage No, Ships No and Grid No- Put in a labeled jar in the freezer.- Recorded the volume filtered next to the correct depth on both, the Phys/ Chem and biological deck chits.- Removed samples from jar and put samples into test tube and covered in acetone.- Placed test tubes into fluorometer to get chlorophyll value.- Applied calibration coefficient to the chlorophyll value based on the fluorometers calibration.Data and metadata is recorded in an excel spreadsheet from the relevant deck chits and instruments (fluorometer).
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 22 Nov 2017 – 27 Nov 2017
Geographic extent

West Coast, South Africa

North: -28.7535480371
South: -34.9911930887
West: 14.5463131624
East: 18.6441020704

Keywords Algoa, Algoa 244, Marine Biogeochemistry, NISKIN BOTTLES, Niskin Water Sampling Bottles, SOUTH ATLANTIC OCEAN, West Coast Monitoring
Related resources
  • This digital object is part of Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 244, November 2017 (10.15493/dea.mims.26052251)