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A broadscale habitat feature class was created to illustrate predicted extent of broadscale habitats present at Farnes East rMCZ. These broadscale habitats include 'Moderate energy circalittoral rock', 'Subtidal coarse sediment', 'Subtidal sand', 'Subtidal mud' and 'Subtidal mixed sediments' as determined from particle size analysis of sediment samples and descriptive analysis of still images from underwater camera data. The assigned classes at each ground-truth stationwere used to inform the semi-automated process of map production using object-based image analysis (OBIA)in combination with regression kriging. Groundtruthing data collected during 2012 on the RV Cefas Endeavour (surveyID CEND0412). Classification system details: EUNIS habitats and a separate FOCI layer. Survey technique details: 0.1m2 mini Hamon grab; Camera sledge; multibeam data colected by EGS under contract in 2012.
Updated habitat map resulting from an integrated analysis of the 2012 (CEND 3/12a) and 2013 (CEND 5/13) dedicated survey data for East of Haig Fras recommended Marine Conservation Zone (rMCZ). It shows the seabed at the site to be a heterogenous fine scale mosaic of sand, coarse and mixed sediments, with mud habitat in deeper areas. The two broadscale habitats ‘A5.1 Subtidal coarse sediment’ and ‘A5.4 Mixed sediments’ are presented as a complex ‘A5.1/A5.4 Subtidal coarse/mixed sediments’. They show no differentiation in their acoustic or topographical properties that would allow them to be mapped separately. The ‘A4 Circalittoral rock’ habitat is present in scattered small patches. Created with Object Based Image Analysis (OBIA) on acoustic data and groundtruthed samples. Acoustic data gathered by Gardline under tender, groundtruthing gathered by Cefas on cruises CEND 3/12a and CEND 5/13.