Title | Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 248, May 2018 |
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Project | Integrated Ecosystem Programme: Southern Benguela (IEP: SB) |
Authors |
Mutshutshu Tsanwani |
Publisher | Department of Forestry, Fisheries and the Environment (2018) |
Contributors |
Project Member: Kanyisile Vena Contact Person: Mutshutshu Tsanwani |
Abstract | First look at Chl-a data from a survey of West Coast of South Africa, Algoa Voyage V248, as part of the Integrated Ecosystem Programme. |
Methods | This dataset was derived from discrete Chl-a data from the RV Algoa Voyage V248, 23 May 2018 - 29 May 2018. 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 | 23 May 2018 – 29 May 2018 |
Geographic extent |
West Coast, South Africa
North: -28.7535480371 |
Keywords | Algoa, Algoa 248, NISKIN BOTTLES, Niskin Water Sampling Bottles, SOUTH ATLANTIC OCEAN |
Related resources |
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