CEFASc0ec35e7-0942-4cc9-993f-ab4428633a65 English series series 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 2025-04-04T01:36:04 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 Crayfish Control - Crayfish trapping records from six sites in England from 2013 to 2015 2016-11-02 publication 2025-04-04 revision 2016-01-11 creation CEFAS3617 https://data.cefas.co.uk Records of crayfish caught in Crayfish traps at six sites across England from October 2013 to November 2015, including counts and site details. 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 unknown Fauna abundance per unit area of the bed Man-made structures Shellfish abundance and biomass in water bodies Shellfish morphology, age and physiology Shellfish reproduction Invasive species monitoring parameters SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Crustacean Mollusc Shellfish Freshwater Freshwater monitoring Freshwater organism Age Animal experiment Model Modelling Advice Analysis Human impacts Management Planning Population dynamics Aquatic environment Freshwater fisheries Season Species GEMET, version 1.0 2008-06-01 publication Construction and Structures Fisheries SeaDataNet P03 parameter discovery vocabulary 2011-03-25 revision Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Unknown 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 English biota 1.73881 1.74086 52.4581 52.4595 2013-10-10 2015-10-27 Binary Delimited Unknown https://data.cefas.co.uk/view/3617 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: Binary download, CSV. 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 Six sites were provided with between 10 and 50 crayfish traps in 2013, and each site was provided with assistance in the initial set up. Each trap was subsequently emptied once or twice weekly, and the number of crayfish in each trap at each visit was recorded by the site managers. Furthermore the crayfish were categorised into size (small, medium or large) and sex class; females were also classed according to whether or not they were berried. This data was provided to Cefas by each site in the form of scanned paper documents and spreadsheets. This raw data has been transcribed into a database, and supplemented with Environment Agency water temperature data. A subset of the underlying tables, database map, codebook, and a long-format .csv file comprising the full dataset, with temperature and site-identifying information removed has been prepared for publication while the full database used for analysis will be available internally only. Following the closure of the project in 2016 it is expected that some sites will continue to trap and record the crayfish caught, providing Cefas with the additional data. This additional raw data will be stored internally, ready for inclusion in the database if and when resources allow. MEDIN 3.1.1