CEFAS855902b3-57f4-478e-9b4e-5aa8c247d358 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 2023-10-06T10:39:20 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 2007-2010 English Channel Crab Tagging Programme Crab Tagging 2013-11-06 publication 2023-10-06 revision 2012-08-29 creation CEFAS546 https://data.cefas.co.uk This project applied data storage tags (DSTs) and double T-bar tags to edible crabs (*Cancer pagurus*) to obtain data that describe and quantify crab movements, growth, mortality and behaviour in the English Channel and Celtic Sea. 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 Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) data.manager@cefas.co.uk owner Department for Environment, Food and Rural Affairs (DEFRA) defra.helpline@defra.gov.uk owner notPlanned Benthos Crustacean Shellfish Management Population dynamics Stock (biological) Coastal environment Sea bed Species GEMET, version 1.0 2008-06-01 publication Fish Fisheries SeaDataNet P03 parameter discovery vocabulary 2011-03-25 revision Fish behaviour SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Benthic boundary 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 -7.50 2.00 47.50 51.25 2007-10-01 2010-12-31 Binary Delimited Geographic Information System Unknown https://data.cefas.co.uk/view/546 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, 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 Release data is considered accurate. Some geographic and size recapture data is of variable quality. Some recaptures were returned after the end of the project. In total, 144 DST tagged crabs (128 female, 16 male) were released at 5 different sites of which 49 were recovered after between 8 and 575 days at liberty (17-40% return rate). Fifty percent of DST recaptures occurred during the first 40 days after release and 80% within 120 days, but thereafter the seasonality of crab behaviour and fisheries became apparent with low occurrences of recaptures over the winter and more in the subsequent summer and autumn fishing seasons. Over 15,000 crabs (mainly females) were tagged and released using double T-bar tags at 11 locations in the English Channel and Celtic Sea. Nearly 2,500 crabs were reported as recaptured, a return rate of 16%, very similar to that obtained in a programme carried out during the 1970s, but substantially lower than for DSTs. Return rates varied widely between locations and were very high immediately after release with 56% of recaptures in the first month and 97% during the first year. The overall pattern of movements was very similar to that obtained by Bennett & Brown(1983) with striking long distance movements by female crabs in a westerly or south-westerly direction. Movements of recaptured male crabs included directional components in a NW, W and SW direction, but proportionally more local and undirected movements. MEDIN 3.1.1