CEFAS411ef843-7882-4931-9a70-c4c4cec51bd4 English dataset Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk pointOfContact 2025-11-06T12:55:53 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 Nutrient data for autumn 2018 and spring 2019 in the Celtic Sea 2021-06-30 publication 2025-11-06 revision 2020-02-26 creation CEFAS20365 https://data.cefas.co.uk Nutrient concentration data collected on the RV Cefas Endeavour as part of CEND17_18, CEND03_19 and CEND04_19, including concentrations of nitrite, nitrate, ammonia, phosphate and silicate. Samples were collected for use in eutrophication assessments and to test the Ferrybox water sampler. Samples were collected using three different methods: ( 1.)Manually from the continuous flow (CF) with mercuric chloride added. ( 2.)Manually from the continuous flow then frozen. ( 3.)Automatically with a water sampler attached to the Ferrybox with mercuric chloride added. Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk originator Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk custodian Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk distributor notPlanned Nutrients SeaDataNet P03 parameter discovery vocabulary 2011-03-25 revision Nitrate concentration parameters in the water column Nitrite concentration parameters in the water column Ammonium concentration parameters in the water column Phosphate concentration parameters in the water column SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Water column SeaVoX Vertical Co-ordinate Coverages 2010-05-18 revision Marine Environmental Data and Information Network MEDIN metadata record availability 2012-01-11 publication data.gov.uk MEDIN metadata record availability 2012-01-11 publication otherRestrictions noLimitations otherRestrictions **Publicly available data licensed under the Open Government Licence v3.0 (`https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)`_ – Please note the applicable attribution statement is as follows: ‘includes Crown copyright, Cefas 2021'** .. _`https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)`: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ English environment -8.00 -2.50 50.00 52.50 2018-10-06 2019-04-11 Delimited Geographic Information System Unknown https://data.cefas.co.uk/view/20365 Cefas Data Portal download The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: CSV, ESRI Shapefile. The data can also be accessed via the WFS and WMS protocols. dataset INSPIRE Data Specification on Habitats and Biotopes – Technical Guidelines 2013-12-10 publication false See the referenced specification Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication true See the referenced specification Sample collection methods ( 1.)Manual CF mercuric chloride. Samples were collected from the surface underway system into 1 litre polyethylene bottles. A subsample was filtered through a glass microfibre GF/F filter and the sample was preserved with mercuric chloride to give a final concentration of 20 mg/l. Samples were refrigerated until analysis. ( 2.)Manual CF frozen. Samples were collected directly from the surface underway system into polycarbonate sample bottles and frozen at -20 deg C until analysis. ( 3.)Water sampler mercuric chloride. 150ml water samples were collected from the surface underway system using an automated Cefas Technology Limited water sampler into polyethylene bags which had mercuric chloride added, to give a final concentration of 47 mg/l. Samples were refrigerated until analysis. Sample analysis methods. All samples were sent to the nutrients laboratory at the University of East Anglia for analysis of nutrient concentrations. Samples were analysed on a Skalar continuous flow analyser using the methods detailed by Skalar. MEDIN 3.1.1