NRW_DS101806 eng NRW_DS110059 dataset Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en pointOfContact 2026-03-03T14:49:07 MEDIN 3.1.2 wel eng utf8 Latitude and Longitude (EPSG::4326) Skomer Marine Conservation Zone ( MCZ ) - Monitoring of King Scallop Pecten maximus Skomer Marine Conservation Zone ( MCZ ) - Monitoring of King Scallop Pecten maximus GNF Ynys Sgomer - Monitro cregyn Aberffro Pecten maximus Skomer Marine Conservation Zone ( MCZ ) formally a Marine Nature Reserve ( MNR ) - Monitoring of King Scallop Pecten maximus King Scallop moitoring surveys Pecten maximus 2017-11-30 publication 4f4c4942-4343-5764-6473-313031383036 In 2015 Skomer Marine Nature Reserve changed designation to Skomer Marine Conservation Zone (MCZ). Skomer Marine Nature Reserve (MNR) was designated in 1990. The scallop population in the Reserve is of conservation value because of its small size and its remoteness from any substantial population. Scallops were collected commercially and recreationally in the area of the Reserve until 1990. In 1990 the South Wales Sea Fisheries Committee (SWSFC) introduced a byelaw prohibiting scallop collecting by any means. The population of scallops needs to be monitored in order to assess the effectiveness of this byelaw. Surveys have been carried out since 1979 looking at scallop density and size. The purpose of this data capture was to estimate the density of scallops within suitable habitats in the Reserve and to assess the age structure in the population. In 2015 Skomer Marine Nature Reserve changed designation to Skomer Marine Conservation Zone (MCZ). Skomer Marine Nature Reserve (MNR) was designated in 1990. The scallop population in the Reserve is of conservation value because of its small size and its remoteness from any substantial population. Scallops were collected commercially and recreationally in the area of the Reserve until 1990. In 1990 the South Wales Sea Fisheries Committee (SWSFC) introduced a byelaw prohibiting scallop collecting by any means. The population of scallops needs to be monitored in order to assess the effectiveness of this byelaw. Surveys have been carried out since 1979 looking at scallop density and size. The purpose of this data capture was to estimate the density of scallops within suitable habitats in the Reserve and to assess the age structure in the population. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en owner Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en custodian Countryside Council for Wales (CCW). Skomer MNR Team Natural Resources Wales, Fishermans Cottage, Marloes, Haverfordwest, Pembrokeshire, SA62 3BJ, Wales enquiries@naturalresourceswales.gov.uk enquiries@naturalresourceswales.gov.uk originator Various including volunteer recorders c/o Natural Resources Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ originator Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en distributor annually Species distribution theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Skomer MNR pecten maximus cockle dredging (hydraulic dredging) marine monitoring (see also marine surveys) king scallop theme NRW Thesaurus 2025-01-08 publication geonetwork.thesaurus.local.theme.converted_nrw-keywords Shellfish abundance and biomass in water bodies theme SeaDataNet Parameter Discovery Vocabulary 2024-06-19 publication geonetwork.thesaurus.external.theme.rdf+xml Volunteers theme IPSV Subjects List 2020-11-18 publication geonetwork.thesaurus.external.theme.subjects otherRestrictions There are no access restrictions on this data. NRW may release, publish or disseminate it freely. no limitations otherRestrictions © CNC/NRW 2009. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose. vector eng utf8 biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision benthic boundary layer NRW Geographic Identifiers Collection 2024-01-01 publication Irish Sea NRW Geographic Identifiers Collection 2024-01-01 publication St. Brides Bay NRW Geographic Identifiers Collection 2024-01-01 publication SIR BENFRO - PEMBROKESHIRE -5.369876 -5.163658 51.668301 51.79602 1979-01-01 25 10 Documents [A] Excel spreadsheet dataset 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 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false The 1979-82 and 1985 surveys used slightly different methods. In 2000 a standard method was developed suitable for volunteer diving teams and which could be repeated in subsequent surveys. Scallops are collected by divers from a two metre band, one metre either side of 50m transects (100m2). The scallops are brought to the surface, their growth rings measured, shells marked with notches for identification and then returned to the site. This is repeated for several transects over several sites of suitable habitat. Survey data is published annually. Most recent: NRW Evidence report No.196 - Skomer MVZ Scallop Survey 2016. The 1979-82 and 1985 surveys used slightly different methods. In 2000 a standard method was developed suitable for volunteer diving teams and which could be repeated in subsequent surveys. Scallops are collected by divers from a two metre band, one metre either side of 50m transects (100m2). The scallops are brought to the surface, their growth rings measured, shells marked with notches for identification and then returned to the site. This is repeated for several transects over several sites of suitable habitat. Survey data is published annually. Most recent: NRW Evidence report No.196 - Skomer MVZ Scallop Survey 2016.