5fa8c5b5-70e0-40a0-9e34-53d3d2feb40e English series series 2026-03-20T12:48:02 MEDIN 3.1.2 biota oceans Bird counts SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Fish reproduction SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Bird behaviour SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Shellfish abundance and biomass in water bodies SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Shellfish reproduction SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Seal abundance SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Fish abundance in water bodies SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Cetacean abundance SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Post-Construction monitoring The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Renewable Energy Lease area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Offshore Cable Corridor The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Soil GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Elevation GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Species distribution GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision North Sea SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision soil and sediment SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision atmosphere 2014-01-01T00:00:00 2014-12-31T23:59:59 0.429574612037093 0.490668789094874 53.1235139054851 53.2139573121939 TCE-2177 Marine Data Exchange 2014, NIRAS and CMACS, Walney, Year 3 Environmental Monitoring Year 3 Environmental Monitoring 2021-05-17T14:09:29 publication English This series contains a collection of surveys undertaken as part of the year 3 post-construction monitoring programme for the Walney offshore wind farm development. Surveys completed include an ornithological boat-based survey and benthic grabs. There will be no limitations when published on the Marine Data Exchange otherRestrictions Data Must be used in accordance to the Marine Data Exchange's Terms of Use: https://www.marinedataexchange.co.uk/content/info/terms-of-use otherRestrictions The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk custodian DONG Energy Power (UK) Ltd +44 (0) 20 7811 5200 infouk@dongenergy.co.uk originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted Customer-questions@orsted.com owner notPlanned Database Documents Image https://www.marinedataexchange.co.uk/details/TCE-2177/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. 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 2010-12-08T00:00:00 publication Conformity with the Commission Regulation (EU) No 1089/2010 was either not relevant to this dataset or not a requirement of the Marine Data Exchange for the creation and submission of this dataset; therefore, conformity has not been assessed and cannot be declared False series Grab and camera survey techniques replicated those of the first and second post construction surveys of 2012 and 2013 respectively (CMACS, 2014a & 2014b) which matched the approach adopted in the collection of baseline data (CMACS, 2009; CMACS, 2011.) and reflected the methodology approved by the Licence Authority and statutory consultees in 2009, with the exception of changes to sediment sampling protocol requested by the License Authority which are discussed below. A survey strategy involving multiple sampling methods was used to obtain information on the benthic habitats and taxa present in the Survey Area (Figure 3). Grab sampling was the principal means of sampling which was backed up, as in previous surveys, with a clearwater camera system which provided information on areas of hard substratum on the cable route where historically it has not been possible to obtain useable grab samples. The clearwater camera system also provided information on deep-burrowing organisms in the offshore mud which are not well sampled with a grab. Information on epifauna on the cable route was derived from beam trawl sampling in previous years, but no beam trawls were carried out in 2014 since these were not required as per the EMP. All grab/camera survey stations sampled in the pre-construction survey (2009 & 2010) and the first and second post-construction monitoring surveys (2012 & 2013) were revisited in this survey. In 2012, Grab/Camera Station 49 in the eastern corner of Walney I OWF was moved approximately 37m to the east compared to the original 2009 location, owing to the original location being occupied by a turbine; it now lies approximately 36m from turbine A01. Due to the uniform nature of the sediments in this area, this is not considered likely to have made any material difference to the results in terms of either sediments or fauna. Other than this change all grab/camera stations have remained constant during the survey series. The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-12-12 revision WGS 84 / UTM zone 30N