fb2e4c99c66c9fe9596fbed46d92206d English c25edeeb492d845621e3db3d997fc7e9 dataset Charly Griffiths DASSH, The Archive for Marine Species and Habitat Data chgr@mba.ac.uk pointOfContact 2019-08-23 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2007 Subsea 7 / Shell UK Ltd Brent B UKCS Block 211 Offshore pre-decommissioning environmental survey 2011-04-06 publication DASSHDT00000051 http://www.dassh.ac.uk/ Day grab samples were taken from 17 stations for quantitative and qualitative physico-chemical analyses, for a pre-decommissioning environmental survey. Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk originator Data Manager Shell UK Exploration and Production Ltd Shell UK Exploration and Production Limited Data Manager 1 Altens Farm Road Nigg Aberdeen AB12 3FY dassh.enquires@mba.ac.uk custodian notPlanned Database Delimited Documents Marine Environmental Data and Information Network Geology Human health and safety Land use Species distribution GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Zoobenthos generic abundance Industrial discharges Concentration of polycyclic aromatic hydrocarbons (PAHs) in sediment samples Concentration of other organic contaminants in sediment samples Concentration of polychlorobiphenyls (PCBs) in sediment samples Fauna abundance per unit area of the bed Industrial activity Metal concentrations in sediment pore waters Sediment grain size parameters SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision DASSH terms and conditions apply otherRestrictions DASSH terms and conditions apply 1 English geoscientificInformation health planningCadastre biota Charting Progress 2 Sea Areas 2009-06-18 creation Northern North Sea International Hydrographic Bureau, Limits of Oceans and Seas 1954-01-01 creation North Sea International Hydrographic Bureau, Limits of Oceans and Seas 1954-01-01 creation Norwegian Sea ICES Statistical Areas 2014-05-16 creation IVa 1.6174 1.7980 60.9714 61.1499 2007-04-13 2007-07-28 140.6000 144.0000 Gardline Environmental (2011) Brent Decommissioning Study UKCS block 211. Brent A, Brent B, Brent C and Brent South. Pre-Decommissioning Environmental Survey Report. Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk distributor http://www.dassh.ac.uk/datasets/DASSHDT00000051 Click to get data A link to the web service or dataset http://www.dassh.ac.uk DASSH homepage A link to the general host site dataset MEDIN data guideline for sediment sampling by grab or core for benthos 2011-02-02 publication See the referenced specification true A single Day grab sample was collected from every station for quantitative and qualitative physico-chemical analyses. Separate sub-samples were taken from the Day grab for later determination of sediment particle size, total hydrocarbon concentration (THC), n-alkanes, polyaromatic hydrocarbons (PAH), alkylphenolpolyethoxylates (APEs), polychlorinated biphenyls (PCBs), metals, organic tins and radioactivity. Three Day grab samples were collected for macrofaunal analysis at stations specified in the SoW and were screened on board over a certified 500um mesh sieve and then preserved in buffered formalin. Two of these were worked up in fractions (500 - 1,000um and >1000um) and the third retained as a spare.