1956f3ee-b640-481d-91eb-7e73cd2af49f English series series 2026-09-02T10:35:29 MEDIN 3.1.2 biota environment Habitat characterisation SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Feasibility The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Consenting The Crown Estate Renewable Energy Development Phases 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 English Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision soil and sediment boundary layer 2004-08-03T00:00:00 2004-08-05T00:00:00 1.34879217206949 1.6758136933659 51.5650393531118 51.7655320971418 TCE-979 Marine Data Exchange 2004, RPS Hydrosearch & Osiris Projects, London Array, Analysis of Seabed Videos For Presence of the Reef-Building Ross Worm Analysis of Seabed Videos - For Presence of the Reef-Building Ross Worm 2021-05-17T13:48:44 publication English The objective of this report is to review a series of seabed video files which have been obtained by Osiris Projects from sites within the proposed Thames Array offshore renewables project survey area. The review was to specifically assess whether the video footage contained any evidence of the presence of the tube-dwelling, reefbuilding marine worm, Sabellaria spinulosa. A total of 18 video files, amounting to 3.25 hours of footage were reviewed. All were obtained from sites subjected to high current speeds, large quantities of suspended organic solids within the water column and associated backscatter from the ROV camera lighting arrays. None of the video sequences contained any evidence of the presence of Sabellaria species. Subsequent to the analysis of the video footage further information on the occurrence of S. spinulosa in beam trawl samples obtained by CMACs was made available. It appears that none of the seabed video locations correspond to the sites where S. spinulosa was recorded by CMACs. It is recommended that, if the opportunity arises, the acquisition of video footage at a selection of the locations where CMACs have recorded the presence of S. spinulosa within beam trawl and macrobenthic grab samples, is attempted using a seabed ROV. This will enable the further investigation and clarification of the extent and degree of reef formation, if any, that is present within the Thames Array survey. The survey operations report is also provided. 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 Osiris Projects osirismarineservices.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor RWE support@rwe.com owner notPlanned Documents https://www.marinedataexchange.co.uk/details/TCE-979/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 This metadata file was originally created by DONG, but following a series of file corruptions, The Crown Estate have re-created the metadata file using the previous information. Video footage was obtained by Osiris Projects from 3rd – 5th August 2004 and forwarded to D Levell in the form of MPEG files on two DVDs for review. A total of 18 video files, amounting to 3.25 hours of footage were reviewed. All were obtained from sites subjected to high current speeds, large quantities of suspended organic solids within the water column and associated backscatter from the ROV camera lighting arrays. The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84