CEFAS3b5ea0bb-3a72-4b8e-b30b-42f3c66f5a41 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 2023-10-31T12:19:23 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 Irish Sea Fish Egg Production Survey - Zooplankton Data Irish Sea Demersal Fish Recruitment Processes 2013-12-12 publication 2023-10-31 revision 2013-07-24 creation CEFAS2635 https://data.cefas.co.uk A series of cruises carried out in the Irish Sea from 2006 to 2008 by the Centre for Environment, Fisheries and Aquaculture Science. This data consists of the analysis results of the fine mesh (PUP) net samples and consist of numbers of zooplankton identified, along with associated positional data and volumes filtered. 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 Department for Environment, Food and Rural Affairs (DEFRA) defra.helpline@defra.gov.uk owner notPlanned Microzooplankton Zooplankton SeaDataNet P03 parameter discovery vocabulary 2011-03-25 revision Plankton Advice Analysis Management Monitoring GEMET, version 1.0 2008-06-01 publication Plankton abundance per unit volume of the water column SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Species distribution 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 Public data - no limitations to reuse 1000 English biota -7.00 -2.50 51.75 55.25 2006-02-21 2008-04-03 Delimited Geographic Information System Unknown https://data.cefas.co.uk/view/2635 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 Species Distribution – 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 Analysis of the main net samples (ichthyoplankton and macroplankton) was carried out under Cefas contract MH003, and these results are recorded separately. Gear used: Gulf VII High Speed Plankton Sampler equipped with a 35cm/40cm aperture nose cone and 70μm/425μm mesh with 280μm mesh cod ends. A PUP sampler fitted with a General Oceanics standard speed mechanical flowmeter and fine mesh, an auxiliary 80μm mesh 'pup' net attached to a sampler frame, fine 80μm mesh 'pup' sampler with ESM2 logger. Valeport CTD and software, Seabird 911 CTD, AFBINI (Agri-Food and Biosciences Institute Northern Ireland) Pronet CTD and software system, SCANMAR depth sensor. Sampler deployment: The sampler was deployed in a double oblique tow from the surface to within 2 m of the seabed. Veering and hauling speeds were manually adjusted to ensure that each depth band was sampled equally. At shallow stations, multiple double oblique dives were necessary to enable a sufficient volume of water to be filtered. A minimum sampler deployment time of 15 minutes was aimed for. On recovery, the net was carefully washed down and the sample collected from the end bag. Each sample was then fixed using buffered formaldehyde solution and transported to the participating laboratories for sorting and identification. Sample analysis: Zooplankton were identified and enumerated from a sub-sample using microscopy. Identification was carried out by experienced taxonomists with reference to relevant identification guides and keys. Data storage: The raw data were stored on an Access database. The various data files were stored on the database in a series of tables linked by having the content of certain fields in common. All routine calculations, calibration changes and conversions were carried out on the database. The data tables (but not queries) have now been extracted into text files. Plankton data are normally expressed as either number of organisms per m3 or per m2. These are calculated from the volume of water filtered (derived using regression co-efficients calculated for different flowmeters). Number per m3 is obtained by dividing the numbers per sample by the volume filtered, and number per m2 of sea surface is obtained by multiplying the number per m3 by the mean total or sampled depth during a deployment. MEDIN 3.1.1