CEFAS4b5f152a-0810-429f-9783-82071cdd3be1 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 2021-12-01T01:24:27 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 North Wales Spurdog Longline Fishery 2008/09 - Fisheries Science Partnership FSP Spurdog in the Irish Sea 2017-01-12 publication 2021-12-01 revision 2013-10-23 creation CEFAS2943 https://data.cefas.co.uk To increase knowledge of the spatial and temporal dynamics of spurdog in waters off North Wales, to provide contemporary data on the reproductive parameters used in demographic models, and to increase understanding of the discard survival of fish caught under commercial conditions. 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 Biota abundance, biomass and diversity Fish 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 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 Adherance to the Cefas Data access policy required. Terms and conditions of OGL – Open Government Licence apply. `http://www.nationalarchives.gov.uk/doc/open-government-licence/`_ .. _`http://www.nationalarchives.gov.uk/doc/open-government-licence/`: http://www.nationalarchives.gov.uk/doc/open-government-licence/ English biota -8.00 -2.50 51.75 55.25 2009-03-31 2009-09-12 Binary Unknown https://data.cefas.co.uk/view/2943 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. 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 Studies focused on spurdog taken by longliners operating in the Irish Sea. This fleet of small, inshore vessels is based primarily in Holyhead (North Wales), and the study was undertaken on a potter/liner *Sarah H.* Three surveys took place. Some of the spurdog were tagged with Petersen discs and released after biological information was recorded, including sex, length and a qualitative index of health state (1, lively; 2, sluggish). This will allow the longer term survival of discarded fish to be examined. The remaining parts of the catch were measured, and a subsample of females was dissected to collect information on the reproductive biology. Given that longlining for spurdog can result in large catches, it was not always possible to quantify catches completely, but large catches were subsampled and raising factors estimated. MEDIN 3.1.1