6d3e228d-7c86-4159-a163-89356ae97829 English series series 2026-02-10T17:00:00 MEDIN 3.1.2 biota environment geoscientificInformation oceans Seabed photography SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Fauna abundance per unit area of the bed SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Sediment grain size parameters SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Habitat extent 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 Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Geology GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Species distribution GEMET - INSPIRE themes, version 1.0 2009-07-31 revision 15 SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision bathybenthic 2019-09-07T23:00:00 2019-09-08T23:00:00 -3.5261 -3.1798 53.3101 53.5107 TCE-3484 Marine Data Exchange 2019, Ocean Ecology, Burbo Bank Extension, Benthic Ecology Survey Benthic Ecology Survey 2019-09-09T00:00:00 creation 2024-04-02T08:44:51 publication 2019-09-09T00:00:00 revision English This report presents the findings of the second Burbo Bank Extension (BBW02) post-construction benthic survey undertaken by Ocean Ecology Limited (OEL) on behalf of Ørsted. The benthic survey was undertaken between 8th and 9th September 2019 aboard the vessel Seren Las. During this survey, a total of 30 macrobenthic and 54 Particle Size Distribution (PSD) samples were collected within the wind farm array, near-field and adjacent reference areas. In addition, 102 seabed images combined with associated video were collected at eight drop-down video sampling stations and along four camera transects within the Export Cable Route (ECR) corridor. A full description of survey operations is provided in the benthic survey report (Appendix 1). This report aims to provide an assessment of the benthic habitats and associated infaunal assemblages within and adjacent to the areas of potential impact resulting from the construction and operation of the BBW02 offshore wind farm. It also provides a comparison with previous data collected during the 2015 pre-construction and 2017 post-construction surveys to determine the magnitude of impacts predicted in the Environmental Statement (ES). Once published, there will be no limitations on public access. Data must be used in accordance with the Marine Data Exchanges Terms of Use which can be found on the website. otherRestrictions Once published, there will be no constraints on access and use. Data must be used in accordance with the Marine Data Exchanges Terms of Use which can be found on the website. otherRestrictions The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk custodian Ocean Ecology Limited Data Manager info@ocean-ecology.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted info@orsted.com owner notPlanned Documents https://www.marinedataexchange.co.uk/details/TCE-3484/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 drop-down camera sampling was undertaken during favourable weather conditions between 8 and 9th September 2019 aboard the vessel, Seren Las operating out of Liverpool. All targeted grab, drop-down camera stations and transects were visited with 30 macrobenthic samples, 54 Particle Size Distribution (PSD) sub-samples and over 100 high-definition still images and associated video were successfully collected across the survey area. All corresponding macrobenthic, PSD and seabed imagery analysis was undertaken at OELs NE Atlantic Marine Biological Quality Control (NMBAQC) scheme participating laboratory during September to December 2019. Univariate and multivariate statistical analyses were carried out on all data collected using PRIMER v7 and R v 1.2.1335 with each sampling station assigned to a treatment group to allow for a temporal comparison between pre- and post-construction periods The vessel was equipped with a Vector V104™ GNSS compass GPS system that provided an accurate offset position of the sampling equipment when deployed from the stern. This provided a GPS feed to a dedicated survey navigation computer, which was later used to produce an overlay on the seabed video footage. Seabed imagery was collected using OELs ROVTech subsea camera system providing 1080p High Definition (HD) video and 20 Megapixel (MP) still images, mounted in a hydrostatic freshwater housing and bespoke mounting frame. Two laser pointers separated by 10 cm were mounted in the frame and projected into the field of view for a measure of scale. Grab sampling was undertaken using OELs 0.1 m2 Day grab. The Crown Estate Marine Data Advisor +44 020 7851 5000 enquiries@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84