3de9737a-0153-4294-be51-024cc689d581 English series series 2026-09-11T12:23:29 MEDIN 3.1.2 biota geoscientificInformation oceans Fauna abundance per unit area of the bed SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Sediment grain size parameters SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Pre-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 Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision Irish Sea and St. George's Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision soil and sediment boundary layer 2009-04-18T00:00:00 2009-05-29T00:00:00 -3.47224499794188 -3.39950654327953 54.0678028099623 54.1088367044463 TCE-1748 Marine Data Exchange 2009, CMACS, Ormonde, Benthic Survey Benthic Survey 2009-11-01T00:00:00 creation 2021-05-17T14:01:13 publication English The report in this series covers pre-development baseline survey work carried out on the benthic environment for the Ormonde and Walney Offshore Wind Farm (OWF) developments. Surveys were carried out during April and May 2009. The surveys involved camera and grab sampling at 49 sites, covering the two OWF sites, a number of reference sites in the surrounding areas, and the proposed cable route, as well as 2m scientific beam trawl surveys at five of the same sites along the proposed cable route. Attempts to obtain towed video at the two OWF sites failed due to extreme turbidity, but still images were obtained at the 49 sites due to the use of a low-visibility camera fitted with a clear water lens. Grab samples were obtained by Day grab at 43 of the sites. Six sites were too coarse to sample by Day grab and attempts to sample them subsequently with a mini-Hamon also failed. Four of these sites were along the proposed cable route while the other two were inshore of it. Presentation type: digital representation of a primarily textual item (can contain illustrations also) Origin: CMACS 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 Centre for Marine and Coastal Studies Ltd +44 (0)151 327 7177 info@cmacsltd.co.uk originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Vattenfall renewables@vattenfall.co.uk owner notPlanned Delimited Image https://www.marinedataexchange.co.uk/details/TCE-1748/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 Forty nine locations covering the cable route, the planned development areas and a number of reference sites were surveyed by drop down video camera, followed wherever possible by benthic grab sampling for sediment analysis (single samples) and benthic faunal analysis (three samples at each location). The cable route was surveyed by 2m scientific beam trawls, with tows being carried out at five locations along the proposed route. Towed video was requested at the centre of each proposed development where 500m long tows were planned. The surveys were carried out in spring, during the period 18th April – 29th May 2009. RPS (on behalf of Vattenfall) rpsbm@rpsgroup.com pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84