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  • The Regional DataBase, RDG, is a database and estimation system where countries upload catch and sample data for commercial fish species requested in Regional Coordination Groups' Data Call for coordination of sampling of commercial fish species. To upload data, work on data, raise/estimate data and to download data require a password.

  • It is widely recognised that M. modiolus reefs represent biodiversity ‘hotspots’ (e.g. Rees et al., 2008). In the Craigbrain and Burial Island Modiolus reefs, diversity indices from samples containing more than 9 live Modiolus per m2 showed numbers of taxa per sample ranging from 31 to 161, Shannon-Weiner diversity indices of between 2.0 and 4.3, and Pielou’s evenness index ranging from 0.52 to 0.95, which are all comparable to figures from similar open coast Modiolus reefs such as those of North Llyn and sites in Loch Alsh (see Fariñas-Franco et al., 2014). The diversity indices did not differ markedly from the surrounding area which is characterised by muddy sandy gravels with high shell content (mostly dead Modiolus shell), however the infaunal communities were significantly different between “Modiolus reef” and “surrounding sediments” (as determined through multivariate community analysis, including cluster analysis and ANOSIM routines). Due to inconsistencies in recording of epifaunal species from the grab samples, the epifaunal communities could not be statistically examined; however it was clear that there is a marked increase in the number of epifaunal species over the reef areas. Density of living Modiolus ranged from zero to 530 per m2 . These numbers are similar to those in other open coast reefs, such as the North Llyn beds (Fariñas-Franco et al., 2014), and the variation in numbers per m2 is indicative of the patchy nature of the reefs. The Craigbrain site appears to show the highest numbers of living Modiolus per m2 , however due to the limited number of samples and small areal coverage of grab samples it cannot be concluded that this reef site is markedly different from the Burial Island reef site, and the infaunal community analysis does not show statistically significant differences between the Craigbrain and Burial Island reef sites.

  • 90th percentile Kinetic energy due to currents at the seabed in the Channel and the Bay of Biscay - Created using the Ifremer hindcast archive MANGA2500. For the purpose of EMODnet Seabed Habitat broadscale habitat map product, values were integrated over period 2010-2015. Values are averages of annual percentiles 90th. The spatial resolution of the dataset is 0.00335 decimal degrees (2500m). The formula used for the Kinetic Energy calculation is 0.5mv^2, where m is the density of seawater (1027 kg.m-3) and v is the current-induced velocity. Values are expressed in N.m-2 (Newton per square meter). The vertical level is the near-seafloor. Created by the EMODnet Seabed Habitats project consortium using the MANGA2500 IFREMER-DYNECO Hindcast.

  • This registry is specifically purposed with supporting OSPAR and HELCOM in providing information that will feed their regional assessments, and in reporting by its contracting parties to MSFD descriptor 11.1.1 (Low and mid frequency impulsive noise).

  • 90th percentile Kinetic energy due to currents at the seabed in the Channel and the Bay of Biscay - Created using the Ifremer hindcast archive MANGA500. For the purpose of EMODnet Seabed Habitat broadscale habitat map product, values were integrated over period 2010-2015. Values are averages of annual percentiles 90th. The spatial resolution of the dataset is 0.0067 decimal degrees (500m). The formula used for the Kinetic Energy calculation is 0.5mv^2, where m is the density of seawater (1027 kg.m-3) and v is the current-induced velocity. Values are expressed in N.m-2 (Newton per square meter). The vertical level is the seafloor. Created by the EMODnet Seabed Habitats project consortium using the MANGA500 IFREMER-DYNECO Hindcast (Caillaud Matthieu, Vasquez Mickael (2016). Manche-Gascogne - 500m - Energie cinétique à la surface de l'océan. https://sextant.ifremer.fr/record/357d72f4-855d-43de-8370-40ff8e4d9542/).

  • Output of the 2016 EUSeaMap broad-scale predictive model, produced by EMODnet Seabed Habitats. The extent of the mapped area includes the Mediterranean Sea, Black Sea, Baltic Sea, and areas of the North Eastern Atlantic extending from the Canary Islands in the south to Norway in the North. The map was produced using a "top-down" modelling approach using classified habitat descriptors to determine a final output habitat. Habitat descriptors differ per region but include: Biological zone Energy class Oxygen regime Salinity regime Seabed Substrate Riverine input Habitat descriptors (excepting Substrate) are calculated using underlying physical data and thresholds derived from statistical analyses or expert judgement on known conditions. The model is produced in Arc Model Builder (10.1). The model was created using raster input layers with a cell size of 0.002dd (roughly 250 meters). The model includes the sublittoral zone only; due to the high variability of the littoral zone, a lack of detailed substrate data and the resolution of the model, it is difficult to predict littoral habitats at this scale. The map follows the EUNIS 2007-11 classification system where it is appropriate. For details on methodology see: Populus J. And Vasquez M. (Eds), 2017. EUSeaMap, a European broad-scale seabed habitat map. Ifremer Available from: http://archimer.ifremer.fr/doc/00388/49975/

  • Confidence in the kinetic energy due to currents at the seabed in the Channel, Celtic Sea and the Bay of Biscay - Created by the EMODnet Seabed Habitats project consortium using the MANGA2500 IFREMER-DYNECO Hindcast. Values are on a range from 1 (Low confidence) to 3 (High confidence). The confidence assessment considered factors such as: • Quality of training data and methods used to construct the model. • Temporal resolution. • Spatial resolution Detailed information on the confidence assessment in Populus J. et al 2017. EUSeaMap, a European broad-scale seabed habitat map. Ifremer. http://doi.org/10.13155/49975

  • Confidence in 90th percentile kinetic energy due to currents at the seabed in the Channel and the Bay of Biscay - Created by the EMODnet Seabed Habitats project consortium using the MANGA500 IFREMER-DYNECO Hindcast (Caillaud Matthieu, Vasquez Mickael (2016). Manche-Gascogne - 500m - Energie cinétique à la surface de l'océan. https://sextant.ifremer.fr/record/357d72f4-855d-43de-8370-40ff8e4d9542/). Values are on a range from 1 (Low confidence) to 3 (High confidence). The confidence assessment considered factors such as: • Quality of training data and methods used to construct the model. • Temporal resolution. • Spatial resolution Detailed information on the confidence assessment in Populus J. et al 2017. EUSeaMap, a European broad-scale seabed habitat map. Ifremer. http://doi.org/10.13155/49975

  • Norway lobster (Nephrops norvegicus) stocks have been identified by WGNEPH on the basis of their population distribution and characteristics, and established by separate Functional Units. The Functional Units (FU) are defined by the groupings of ICES statistical rectangles. The statistical rectangles making up each FU encompass the distribution of mud sediment on which Nephrops live.

  • Broadscale habitat (EUNIS level 3) for Compass Rose recommended Marine Conservation Zone (rMCZ). Seabed texture polygons mapped using expert interpretation of acoustic data (MBES bathymetry and backscatter, and bathymetry compiled for Defra(Astrium, 2011)) and ground-truthing data from PSA analysis and image (stills and video) classification.