| 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 |
Tsanwani, Mutshutshu |
| Publisher | Department of Forestry, Fisheries and the Environment (2018) |
| Contributors |
Project Member: Vena, Kanyisile Contact Person: Tsanwani, Mutshutshu |
| 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 | |
| Temporal extent | 22 Nov 2017 – 27 Nov 2017 |
| Geographic extent |
West Coast, South Africa
North: -28.7535480371 |
| Keywords | Algoa , Algoa 244 , EBV: Ecosystem Function > Ecosystem phenology , EBV: Ecosystem Function > Primary productivity , EBV: Ecosystem Structure > Ecosystem distribution , EOV: Biology and Ecosystems > Phytoplankton biomass and diversity , Marine Biogeochemistry , NISKIN BOTTLES , Niskin Water Sampling Bottles , SOUTH ATLANTIC OCEAN , West Coast Monitoring |
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