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  • Outputs produced as part of the South Coast Regional Environmental Characterisation on behalf of the Marine Aggregate Levy Sustainability Fund. Data available to download from www.marinealsf.org.uk/ Due to poor weather conditions, only this eastern area contains a full grid of multibeam echo sounder data. Therefore, for the confidence assessment, dataset was split in two. GB001090 contains the the lower confidence areas

  • A biotope analysis of Dundrum bay was conducted in 2015 as part of efforts to understand the distribution and extent of benthic habitats and associated marine life within the Murlough special area of conservation incorporating new and historical groundtruthing information alongside modern acoustic data. The map was originally presented in the Marine Habitat Classification for Britain & Ireland (http://jncc.defra.gov.uk/MarineHabitatClassification). This has been translated to the EUNIS habitat classification system for integration with other European datasets. For more information, see: AFBI, 2015. Bathymetric and Habitat Map for Murlough Special Area of Conservation and offshore, Northern Ireland. Report to the Department of the Environment.

  • Updated habitat map resulting from an integrated analysis of the 2013 dedicated survey data (collected on cruise CEND0613) for South West Deeps (West) recommended Marine Conservation Zone (rMCZ). A new habitat map for the site was produced by analysing and interpreting the available acoustic data and the ground-truth data collected by the dedicated surveys of South West Deeps West rMCZ. The process is a combination of two approaches, auto-classification (image analysis) and expert interpretation. The routine for auto-classification is flexible and dependent on site-specific data, allowing for application of a bespoke routine to maximise the acoustic data available. ArcGIS was used to perform an initial unsupervised classification on the supplied backscatter image. The single band backscatter mosaic was filtered and smoothed prior to the application of an Iso cluster/maximum likelihood classification routine. For further information, refer to the South-West Deeps (West) rMCZ Post-survey Site Report.

  • Updated habitat map resulting from an intergrated analysis of the acoustic and ground-truth survey data from 2014 (onboard the RV Cefas Endeavour). Sediment types at each groundtruthing station were used to inform a semi-automated process of map production using object-based image analysis (OBIA). The majority of the seabed was classified as 'A5.4Subtidal mixed sediments', with patches of 'A5.1 Subtidal coarse sediment'and 'A5.2Subtidal sand'.

  • Feature class depicting broadscale habitat features at The Padstow Bay and Surrounds MCZ. The map is a result of an integrated analysis of existing MBES full coverage of bathymetry and partial coverage of backscatter data from the Civil Hydrography Programme (CHP) and dedicated ground-truthing survey data, collected in 2013. Habitat classes observed at each ground-truthing station were used to inform a semi-automated process of map production using object-based image analysis (OBIA). The map shows the seabed at the site to be characterised largely by outcropping bedrock (‘A3.2 Moderate energy infralittoral rock’ and ‘A4.2 Moderate energy circalittoral rock’), with deposits of ‘A5.1 Subtidal coarse sediment’ in valleys and crevasses in the rock and flat areas of ‘A5.2 Subtidal sand ‘, mainly closer to shore.

  • A biotope analysis of Dundrum bay was conducted in 2015 as part of efforts to understand the distribution and extent of benthic habitats and associated marine life within the Murlough special area of conservation incorporating new and historical groundtruthing information alongside modern acoustic data. The map was originally presented in the Marine Habitat Classification for Britain & Ireland (http://jncc.defra.gov.uk/MarineHabitatClassification). This has been translated to the EUNIS habitat classification system for integration with other European datasets. For more information, see: AFBI, 2015. Bathymetric and Habitat Map for Murlough Special Area of Conservation and offshore, Northern Ireland. Report to the Department of the Environment.

  • This feature details the findings of a dedicated seabed survey at the Bembridge recommended Marine Conservation Zone (rMCZ). The site is being considered for inclusion in a network of Marine Protected Areas (MPAs) in UK waters, designed to meet conservation objectives under the Marine and Coastal Access Act 2009.

  • Updated habitat map resulting from an integrated analysis of the 2012 dedicated survey data for Beachy Head East recommended Marine Conservation Zone (rMCZ).

  • A geostatistical analysis of the data is reported leading to the selection of a linear model of corregionalization for the composition of the sediment, based on the additive log-ratio transformation of data on mud, sand and gravel content. This model is then used for spatial prediction on a 250-m grid. At each grid node a prediction distribution is obtained, conditional on neighbouring data and the selected model. By sampling from this distribution, and backtransforming onto the original compositional simplex of the data, we obtain a conditional expectation for the proportions of sand, gravel and mud at each location, a 95% confidence interval for the value at each node, and the probability that each of the four sediment texture classes that underlie the EUNIS habitat classification is found at the node.

  • Broadscale habitat (EUNIS level 3) for Hythe Bay (rMCZ) recommended Marine Conservation Zone (rMCZ) Updated habitat map resulting from an intergrated analysis of the acoustic and ground-truth survey data from 2012. The ground-truthing survey was carried out by the Environment Agency (EA) on the 26th March 2012 using the MV Sea Vigil. The site is predominantly characterised as A5.3 Subtidal mud.