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Monitoring survey undertaken by EMU on behalf of Tarmac Marine Dredging Ltd. The primary aim of the survey was to undertake a repeat monitoring survey of the Licence Areas 435/396 and adjacent Black Bream Nest areas. Subtidal Habitat Mapping from multibeam data. Ground truthing using drop down video.
Subtidal Habitat Mapping from multibeam data. Maritime and Coastguard Agency survey (various contractors), no groundtruthing.
A Natural England commissoined verification survey of intertidal sediments within the Beachy Head West rMCZ. Phase I Biotope mapping was carried out across the rMCZ for broad scale habitats where intertidal coarse sediment occurred. Phase II Infaunal sampling was carried out to provide information on the benthic infaunal assemblages and particle size distribution of the study sites by means of core sampling. Sediment surface scrapes were obtained for heavy metals and organic contaminants analysis. The data was used to produce a EUNIS Level 3 boradscale habitat map of the Beachy Head West rMCZ. Aerial imagery and OS mapping was digitised to produce baseline maps of biotope boundaries. The maps were annotated in the field to identify biotopes and boundaries as well as significant features. In addition, intertidal sediment cores were taken at 6 stations (0.01m2 cores 3 replicates at each station) distributed throughout the Beachy Head West rMCZ, in order to assess the benthic species present, along with an additional sample for Particle Size Analysis. Samples were sieved over a 0.5mm sieve. Sediment scrape samples were also taken at 3 stations for Tributyl tin, heavy metal and organic contaminant analysis. The methods used for data collection and processing followed protocols and standards for biotope mapping and sampling. MEDIN Data Guideline for sediment sampling by grab or core for benthos.
A Natural England commissioned verification survey. Littoral biotope survey and condition assessment of the Tamar, Tavy & St John's Lake SSSI. The purpose of the study was to establish a physical and biological baseline dataset to facilitate an assessment of favourable condition status of littoral sediment habitats of the SSSI site, as well as identifying species and biotopes that are representative and/or notable within the Tamar, Tavy & St John's Lake. The study comprised of Phase I and Phase II surveys. Phase I comprised of groundtruthing aerial photography to establish the distribution and extent of intertidal biotopes, interest features and species. Followed by Phase II; detailed descriptions of biotopes present , flora and fauna species list and abundance, as well as sediment characteristics by means of box-core sampling. The data was used to produce a detailed biotope map of the Tamar, Tavy & St John's Lake.
A Natural England commissioned survey conducted by Kent Wildlife Trust. The aim of the survey was too monitor and assess the condition of the reefs and caves within the Thanet Coast SAC, resulting in a species inventory and assessment of abundance as well as the production of detailed biotope maps.
Investigation of benthic faunal characteristics of gravel seabed areas off the South Coast of the UK in the Eastern Channel. Data verified in-house. All data collected, analysed and verified by experts.
This dataset is a BGS interpretation (Sally Philpott) of 100% side scan cover from the survey area. The interpretation also referred to BGS historical sediment data for the area, and point ground-truth samples. This was a site specific survey around the Hastings shingle bank 12x4km in the Eastern Channel. The map was ground-truthed using video tows to assess the distinctness of the boundaries, thus giving a high confidence in the boundaries drawn. This is only sediment data, no biotope assignments have been made to these polygons. Faunal samples from Hammon Grabs and 2m beam trawls exist, but have not been used to interpret biotopes. This work is part of project AE1033 (internal CEFAS code) to be reported in CEFAS Science Series Technical Report, Summer 2005. The polygons follow the BGS sediment/bedform classification.
Broadscale interpretation of seabed facies between Hastings and Dungeness (Varne) in Eastern Channel. Survey was 50km (E) x 15km (N). Individual side scan tracks interpreted into seabed sediments, then interpolated across whole survey area by Sally Philpott (BGS Keyworth). This data set relates to side scan tracks at 1 km track spacing, 400 m swathe width. The data has limited ground-truthing, and biotopes have not been assigned. Faunal samples from Hammon Grabs and 2m beam trawls exist, but have not been used to interpret biotopes. PSA data in half phi units now converted to folk. The area contains the smaller, more detailed map of Hastings shingle bank, in Facies map of Hastings (GB000455). This work is part of project AE1033 (internal CEFAS code) to be reported in CEFAS Science Series Technical Report, Summer 2005. The polygons follow the BGS sediment/bedform classification.
Broadscale EUNIS habitat map covering ~3,800 sq km lying >12 km off the Isle of Wight, to the UK/France median line. Aimed at identifying Annex I 'Rocky reef' habitats. Based on expert interpretation of multiple data sets including Benthic Terrain Modeller applied to full-coverage single-beam digital bathymetry (licensed from SeaZone), complementary Cefas acoustic surveys with directed ground truth sampling (video and still images), and the BGS seabed sediments chart modified according to the simplified 4-class Folk trigion used by MESH and EUNIS (Coarse, Mixed, Sand, Mud).
Seabed facies interpretation (Sally Philpott, BGS) of area 12km x 4km east of the Isle of Wight, adjacent to Nab Tower, based on 100% side scan cover obtained in August 1998. The interpretation also referred to BGS historical sediment data for the area, and point ground-truth samples.