c2989846c41b41aa6a88f27ba0326554 English dataset Devon and Severn IFCA Devon and Severn Inshore Fisheries and Conservation Authority office@devonandsevernifca.gov.uk pointOfContact 2024-09-04 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 Taw-Torridge Mussel Stock Assessment 2020 2021-03-31 publication TAWMUSSEL2020 Since 2012 Devon and Severn IFCA has carried out stock assessments on the public mussel beds on the Taw-Torridge Estuary, North Devon. These surveys determine the area of each bed, the density of mussels, the percentage cover, and the estimated stock (in tonnes), and marketable stock (mussels greater than 50mm in length) for each bed, and are used to assess the condition of the bed and whether the bed could support a viable mussel fishery. Devon and Severn IFCA Devon and Severn Inshore Fisheries and Conservation Authority office@devonandsevernifca.gov.uk originator Devon and Severn IFCA Devon and Severn Inshore Fisheries and Conservation Authority office@devonandsevernifca.gov.uk custodian asNeeded Documents Marine Environmental Data and Information Network NDGO0005 Species distribution GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Shellfish abundance and biomass in water bodies SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision Bivalve molluscs Bivalves 2015-04-07 creation Full data available on request otherRestrictions Full data available on request English biota Charting Progress 2 Sea Areas 2009-06-18 creation Western Channel and Celtic Sea ICES Rectangles 2009-05-01 creation 28E5 International Hydrographic Bureau, Limits of Oceans and Seas 1954-01-01 creation Bristol Channel SeaDataNet vertical extent keywords 2010-01-01 revision littoral -4.2182 -4.1598 51.0457 51.0677 2020-09-03 2020-09-20 Devon and Severn IFCA Devon and Severn Inshore Fisheries and Conservation Authority office@devonandsevernifca.gov.uk distributor http://https://www.devonandsevernifca.gov.uk/Resource-library/H-Environment-and-Research A link to the general host site dataset Data is collected by Devon and Severn IFCA, in the first half of each year (2012–2019) and in the Autumn of 2020. Transects are walked across each mussel bed using the Dutch Wand method of surveying, data on the extent of each bed was also used to create GIS layers of the area of the beds. Results are compared to those from previous years.