46a4c1b9-2976-4cbc-83e0-092897a65c68 English dataset Data Archive for Marine Species and Habitats 01752426237 dassh.enquiries@mba.ac.uk pointOfContact 2025-10-15 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 2023 DAERA MED WFD & CSSEG Estuarine Fish Surveys 2025-10-15 publication DASSHDT00000628 https://www.dassh.ac.uk/ The DAERA estuarine fish survey is an annual assessment of fish communities in seven river estuaries in Northern Ireland. Data is collected primarily for the purposes of reporting to Water Framework Directive (WFD), although a subset of the data is reported to the MERMAN database for inclusion in the Clean Seas Evidence Group (CSEG) work programme. DAERA daerahelpline@daera-ni.gov.uk owner Centre of Environmental and Data Recording (CEDaR) cedar.info@nationalmuseumsni.org custodian DAERA daerahelpline@daera-ni.gov.uk originator Data Archive for Marine Species and Habitats Data Manager 01752426237 dassh.enquiries@mba.ac.uk distributor notPlanned Marine Environmental Data and Information Network MEDIN metadata record availability 2025-10-15 revision NDGO0005 NDGO0005 2025-10-15 revision Habitats and biotopes Species distribution GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Habitat characterisation SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions Open otherRestrictions Open Government Licence (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 biota environment -7.45148 -5.91286 54.09574 55.16546 SeaVox salt and freshwater body gazetteer 2021-01-06 creation inapplicable ICES Rectangles 2021-01-06 creation 37E3 ICES Statistical Areas 2021-01-06 creation VIa 2023-09-04 2023-09-27 SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision water column Delimited https://doi.org/10.17031/68e4db0c9d603 DOI Link Link to data download download 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 Fishes are identified in the laboratory at a later date by reference to published taxonomy texts such as Wheeler (1969), The Fishes of the British Isles and North Western Europe. Scientific and common names of fishes follow those provided in Maitland and Herdson (2009), A Key to the Marine and Freshwater Fishes of Britain and Ireland.All species are counted, and batch weighed to the nearest 0.1 g. Specimens are also measured (mm TL) and grouped into 10 mm size classes. Where large numbers of a particular species are captured, a sub-sample of at least 50 specimens are measured and weighed, the remaining sample is then batch weighed and the total number of individuals estimated using an average specimen weight. The total number of species and their numerical contribution to the total catch is determined for each transitional water. Competency of taxonomic identification is assessed twice yearly by completing the NMBAQC fish component of the ring test programme. Data entered into Marine Recorder Online (MRO) and archived into DASSH. MRO Survey ID: 2DE28CB9-A5BF-4D96-BB7C-9E8CF4EE8397