Name: Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 239, May 2017
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/DEA.MIMS.605204

Title	Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 239, May 2017
Project	Integrated Ecosystem Programme: Southern Benguela (IEP: SB)
Authors	Raquel Flynn Department of Oceanography, University of Cape Town Department of Oceanography, University of Cape Town, Rondebosch, Cape Town, 7701, South Africa, FLYRAQ001@myuct.ac.za Jessica Burger Department of Oceanography, University of Cape Town Department of Oceanography, University of Cape Town, Rondebosch, Cape Town, 7701, South Africa, jessicaburgersa@gmail.com Sarah Fawcett Department of Oceanography, University of Cape Town Department of Oceanography, University of Cape Town, Rondebosch, Cape Town, 7701, South Africa, sarah.fawcett@uct.ac.za
Publisher	Department of Forestry, Fisheries and the Environment (2020)
Contributors	Contact Person: Keshnee Pillay Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, KePillay@environment.gov.za
Abstract	Nutrient data for the Integrated Ecosystem Programme: Southern Benguela (IEP:SB): May 2017 from all stations.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, preservation and conservation, so that South Africans can benefit from a healthy and well-functioning ocean environment. The overarching objective is to enhance understanding in process studies by assessing the importance, timing and magnitude of mechanisms and processes that influence the Southern Benguela ecosystem structure and functioning, including the climate variability.
Methods	Nitrate and silicate concentrations are to be measured on a Lachat QuickChem Flow Analysis platform following published auto-analysis protocols (Grasshoff 1976; Diamond 1994). The Lachat QuickChem Flow Autoanalysis platform configuration used has a detection limit of 0.1 µM. Nitrite concentrations were determined using the benchtop colorimetric Greiss reaction (Bendschneider and Robinson 1952; Parsons et al. 1984). Absorbance was measured using a Thermo Scientific Geneysis 30 Visible spectrophotometer at a wavelength of 543 nm. The method has a detection limit of 0.05 µM. Phosphate was determined using the Strickland and Parsons colourimetric method (Strickland and Parsons 1968). Samples and standards were measured using a Thermo Scientific Geneysis 30 Visible spectrophotometer at a wavelength of 880 nm. The method has a detection limit of 0.05 µM.
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/DEA.MIMS.605204 Style Terms of use These data are made available with the express understanding that any such use will properly acknowledge the originator(s) and publisher and cite the accession numbers and/or associated Digital Object Identifiers. Anyone wishing to use these data should properly cite and attribute the data providers listed as authors in the metadata provided with each dataset. It is expected that all the conditions of the data license will be strictly honoured. Use of any material herein should be properly cited using the dataset’s persistent identifiers such as accession numbers and DOIs. I agree to the terms of use
Temporal extent	22 May 2017 – 29 May 2017
Geographic extent	Southern Benguela, West coast of South Africa, Long term monitoring lines, Kleinsee Monitoring Line, Namaqua Monitoring Line, St Helena Bay Monitoring Line, Scarborough Monitoring Line North: -28.7535480371 South: -34.9911930887 West: 14.5463131624 East: 18.6441020704
Vertical extent	Max: -1011.3 m Min: -1011.3 m
Keywords	Algoa, Algoa 239, Nutrients, SOUTH ATLANTIC OCEAN
Related resources	This digital object continues 10.2989/1814232X.2018.1502095 This digital object is part of Analysed primary production data from the 2017 Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruises (10.15493/DEA.MIMS.605209)

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