228c1e6d46c34fa58fe06d062ca30518 English dataset Natural England Marine Data Manager +44 (0)300 060 3900 +44 (0)300 060 2356 Foss House, Kings Pool, 1-2 Peasholme Green York YO1 7PX enquiries@naturalengland.org.uk pointOfContact 2023-04-21 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2000-2001 English Nature (EN) Isles of Scilly, Fal and Helford, subtidal sandbank monitoring 2023-04-21 publication 2001-05-26 creation 2001-05-26 revision NATENG000349 http://www.naturalengland.org.uk Report following surveying of subtidal sandbanks within the candidate Special Areas of Conservation (cSAC) at the Isles of Scilly, Fal and Helford. The survey was undertaken as part of the designation process of the cSACs. The objectives were to undertake sediment sampling and establish monitoring sites and baseline values for attributes (such as sediment characteristics and species composition). This dataset contains the biodiversity data collected in the survey collated by site. J. Allen Institute of Estuarine and Coastal Studies dassh.enquiries@mba.ac.uk originator N. Proctor Institute of Estuarine and Coastal Studies dassh.enquiries@mba.ac.uk originator Natural England Marine Data Manager +44 (0)300 060 3900 +44 (0)300 060 2356 Foss House, Kings Pool, 1-2 Peasholme Green York YO1 7PX enquiries@naturalengland.org.uk custodian notPlanned Documents Marine Environmental Data and Information Network Geology Habitats and biotopes Land cover Species distribution GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Fauna abundance per unit area of the bed Shellfish abundance and biomass in water bodies Zoobenthos taxonomic abundance Habitat extent Habitat characterisation Macroalgae and seagrass taxonomy-related counts Sediment grain size parameters Seabed photography SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision Accessible under NE and DASSH terms and conditions otherRestrictions Accessible under NE and DASSH Terms and Conditions English geoscientificInformation biota imageryBaseMapsEarthCover biota Charting Progress 2 Sea Areas 2009-06-18 creation Western Channel and Celtic Sea ICES Rectangles 2009-05-01 creation 28E3 ICES Rectangles 2009-05-01 creation 29E3 ICES Rectangles 2009-05-01 creation 28E4 ICES Rectangles 2009-05-01 creation 29E4 ICES Rectangles 2009-05-01 creation 28E5 ICES Rectangles 2009-05-01 creation 29E5 SeaDataNet vertical extent keywords 2010-01-01 revision soil and sediment 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 -6.5231 -4.9136 49.8256 50.2911 2000-09-23 2001-05-26 Natural England Marine Data Manager +44 (0)300 060 3900 +44 (0)300 060 2356 Foss House, Kings Pool, 1-2 Peasholme Green York YO1 7PX enquiries@naturalengland.org.uk distributor http://doi.org/10.17031/6441030000933 DOI link A link to the web service or dataset http://https://www.dassh.ac.uk/ DASSH website A link to the general host site dataset Report following surveying of subtidal sandbanks within the candidate Special Areas of Conservation (cSAC) at the Isles of Scilly, Fal and Helford to obtain baseline information. The work was carried out by the Institute of Estuarine and Coastal Studies (IECS). The initial survey took place in 2000 with a second survey in 2001 to establish any temporal variability. The sampling areas were chosen in advance to reflect the features for which each cSAC had been designated. The sampling method used a combination of grab sampling and underwater video to gather information on the sediment itself and associated fauna. Grab samples were taken from pre-determined stations with a minimum sample depth requirement. The samples were sub-sampled for particle size analysis (PSA) and organic carbon content determined. The remainder of the sample was sieved through 1mm and 0.5mm mesh sizes and stored for later analysis. Drop-down video was used to capture a minimum of 30-seconds of video at each sample station. Comments about the substratum and epifauna/flora were made from each video. Taxonomic identification of the grab samples was carried out at the IECS laboratory. The samples were again sieved (500um, 1mm and 5mm mesh sizes) and sorted. Identification was carried out to species level, where possible. The biomass (wet weight tissue dried) for each species was also determined. The PSA was done using dry sieving techniques using specific mesh sizes (MNCR fractions) and a Malvern Mastersizer laser granulometer. Organic carbon content was determined by %loss on ignition (LOI). The data was analysed in a number of ways including a cluster analysis looking at the similarity between samples based on species composition. The results for each individual site are presented and include descriptive text, raw data tables, the results of similarity testing and characteristic species information (i.e. abundance). Marine recorder survey number: MRNE01340000005C