96918b748a5a551f880e27753889bec9 eng series npower renewables GIS data manager 01793 89 33 87 N/A Trigonos Windmill Hill Business Park Whitehill Way Swindon SN5 6PB carla.houghton@rwe.com N/A pointOfContact 2014-03-03 MEDIN Discovery Metadata Standard Version 2.3.7 urn:ogc:def:crs:EPSG::4326 OGP 2010-2011, Centre for Marine and Coastal Studies Ltd., (CMACS), Gwynt y Mor Offshore Wind Farm, Pre-construction Baseline Benthic Grab Survey 2011-07-01 publication 2011-06-01 creation 5240 http://data.offshorewind.co.uk/ Gwynt y Môr Offshore Wind Farm (GYM) pre-construction (baseline) benthic ecology survey undertaken in September/October 2010. The survey is part of a programme to monitor the status of benthic organisms and seabed sediments to allow the identification of any significant adverse effects resulting from the construction and operation of GYM OWF. The benthic ecology monitoring programme was informed by characterisation surveys undertaken at the GYM OWF site for the Environmental Impact Assessment (EIA) in 2005. Survey methods comprised grab and beam trawl sampling, as used in 2005, with the addition of drop-down camera deployment for areas where there had previously been difficulty obtaining samples due to hard substratum. The Crown Estate +44 020 7851 5000 16 New Burlington Place London W1S 2HX United Kingdom enquiries@thecrownestate.co.uk http://www.thecrownestate.co.uk custodian Centre for Marine and Coastal Studies Ltd +44 (0)151 327 7177 +44 (0)151 327 6344 Head Office, CMACS Ltd, 80 Eastham Village Road, Eastham Wirral CH62 0AW United Kingdom info@cmacsltd.co.uk http://www.cmacsltd.co.uk/ originator unknown various Pre-Construction monitoring The Crown Estate Renewable Energy Development Phases 2012-05-15 revision 1 Renewable Energy Lease area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision 1 Fish and shellfish catch statistics SeaDataNet Parameter Discovery Vocabulary 2017-09-06 revision 103 Water column photography SeaDataNet Parameter Discovery Vocabulary 2017-09-06 revision 103 Fish biomass in water bodies SeaDataNet Parameter Discovery Vocabulary 2019-06-14 revision 112 Fish abundance in water bodies SeaDataNet Parameter Discovery Vocabulary 2017-09-06 revision 103 Marine Environmental Data and Information Network Marine Environmental Data and Information Network no conditions apply eng biota environment -3.76607548419802 -3.45407035095433 53.4073128575686 53.504544505898 2010-09-21 2010-10-03 Origin: CMACS dataset The benthic grab sampling was completed by the survey vessel ‘Aquadynamic’ operating from Conwy Marina on a daily ‘port return’ basis during 21st-29th September 2010. A standard weighted 0.1m2 Day grab suitable for use on the anticipated ground types of the area was used. 48 grab sites were visited and three replicate grab samples for faunal and sediment analyses were obtained successfully from 41 locations (see Figure 3.2-1 for grab site locations). At each station the survey vessel was positioned to within 5m of the target point using DGPS and actual sample position recorded to ± 2 m. The trawling part of the survey programme was conducted by the vessel ‘Halcyon Days’ operating daily from the Port of Liverpool from 27th September-3rd October 2010. All 30 trawl sites were sampled successfully (see Figure 3.2-3) but some of the site positioning deviated from the original survey plan due to the proximity of offshore pipelines. The camera survey was completed on 3rd October 2010 also by the survey vessel ‘Aquadynamic’ operating from Conwy Marina on a daily basis. Camera locations sampled are provided in Figure 3.2-2. 17 sites were surveyed at locations inshore from the GYM site and the location of these sites was chosen as grab samples had failed from this area during the characterisation survey, as discussed above. During the 2010 baseline survey grab sites 11, 21, 22, 23 and 45 failed to yield a sample to pass the QC measures. These sites were then added to the camera survey and visited with the drop down camera. Figure 3.2-2 also displays these failed grab site locations which were re-surveyed using the camera. https://www.marinedataexchange.co.uk/details/577/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site.