CEFAS6a64e418-0be4-45a0-9bf6-a17c9aa44cb0 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 2019-10-29T10:09:34 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 Reduce Whiting By-Catch in the SW Trawl Squid & Cuttlefish Fishery 2016/17 - Fisheries Science Partnership FSP Reduce Whiting By-Catch in the SW Trawl Squid & Cuttlefish Fishery 2017-05-18 publication 2019-10-29 revision 2017-05-18 creation CEFAS18556 https://data.cefas.co.uk Ten days of sea trials comprising 21 tows were successfully completed on board the commercial fishing vessel *‘Sue Ellen’* (BM211) in Lyme Bay in January 2017 allowing comparison of the catches in a modified box trawl fitted with a four-panel extension and cod end with those of a standard two-panel box trawl. The aim of this study was to try and reduce the catch of unwanted whiting without loss of squid or cuttlefish. The cuttlefish season had finished for the inshore trawlers at the time of this study, so the emphasis was on retaining squid. 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 Fish Biota abundance, biomass and diversity SeaDataNet P03 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 -10.00 0.00 47.00 51.50 2017-01-09 2017-01-24 Binary Unknown https://data.cefas.co.uk/view/18556 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 The primary objective of this project was to develop trawl modifications that reduce unwanted whiting catches while maintaining catches of commercial squid and cuttlefish in the SW otter trawl fishery. The stocks of whiting in the Western English Channel are believed to be in good condition but whiting is the most likely choke species for vessels operating from some SW ports, including Plymouth, Brixham and Looe. Many vessel operators, however, were not overly aware of this because the main target species, such as lemon sole, squid and cuttlefish, are non-quota. Whiting is a by-catch, landing prices for which are below those received for other species, and quota uptake for 2015 and 2016 was only about 50%. There are two well-known fisheries for squid in UK coastal waters – one off Lundy Island and another in the Moray Firth. In contrast to these fisheries, however, the squid fishery in Lyme Bay is highly mixed and requires a minimum cod end mesh size of 80 mm stretched mesh. In addition, the strength, distribution and seasonality of the squid fishery is quite unpredictable, hence squid tends to be an important by-catch of the more reliable cuttlefish and lemon sole fisheries. On board observations of catches during the autumn fishery for cuttlefish and squid in Lyme Bay in the years 2013-15 indicate that whiting accounted for up to 29% of catches by weight (Santos, 2016). Undersize whiting made up only a small proportion (3%) of these, and were discarded. Nearly a quarter, however, of fish larger than the minimum landing size were discarded. Lemon sole is a very important catch component of the inshore trawler fleet and considerable numbers were starting to show up on the inner grounds of Lyme Bay as these gear trials got underway. MEDIN 3.1.1