Type of resources
Available actions
Topics
Keywords
Contact for the resource
Provided by
Years
Formats
Representation types
Update frequencies
status
Service types
Scale
Resolution
From 1 - 10 / 1319
  • Seabed habitat map (EUNIS classification system) performed by CREOCEAN, LIENSs, EPOC, GEOTRANSFERT, RE NATURE ENVIRONNEMENT & IODDE within the framework of CARTHAM ("cartographie des habitats marins") project coordinated by the French Biodiversity Agency (Agence française pour la biodiversité, AFB). Digital data sources: sonar (2011), orthos (2000), historical data (Hamdi et al., 2010; Hily, 1976; Chassé, 1974) Ground truth data sources (2010-2012): hamon grab, sediment dredges, direct human observations Map confidence rated by Ifremer : 88%

  • Model describes the potential distribution range of Mytilus trossulus x edulisin the Finnish coast. Model was produced using extensive data (~140,000 samples) on the Finnish Inventory Programme for Underwater Marine Environment (VELMU). Model was built using Boosted regression trees (BRT), and resulting models describe the probability of detecting a habitat-forming species in a cell. Environmental predictors include for instance (and are not only restricted to): bathymetry, euphotic depth, salinity, substrate, and wave exposure. As more accurate information is gained by diving than from video methods, dive data was used as the primary source for modelling with 75–90% for model training and 10–25% for validation. The secondary source, video data, was used only for species clearly identifiable from videos with additional subsets (25%) from targeted inventories. Dive and video data are limited to rather shallow depths (typically 20–30 m), leading to a situation where there are not enough samples from deep areas (below 50 m). To avoid artefacts in the models, a randomized absence dataset for areas deeper than 50 m was used during the modelling process. These points were used only as absences in macrophytes models, based on the knowledge that macrophytes do not live at such depths in the Baltic Sea due to habitat constraints and lack of light.

  • The description and mapping of marine habitat types according to Annex I of Directive 92/43/EOK (EEC, 1992) and / or the European Nature Information System (EUNIS) in 66 of approximately 300 Greek NATURA 2000 network sites, were the subject of Research Work for the Ministry of Environment Planning and Public Works of Greece. This research project, under the name "Identification and description of habitat types at sites of interest for conservation", lasted from 1999 to 2002 and was carried out by the National Centre for Marine Research (NCMR, renamed as Hellenic Centre for Marine Research - HCMR since 2003) in association with the Institute of Marine Biology of Crete (IBCM, joined to HCMR since 2003), the Aristotle University of Thessaloniki and the Fisheries Research Institute (FRI). The recognition and imprinting of marine habitat types was based on the combined use of aerial photos of scale 1:5000 acquired during the second half of 1999 for the needs of the project, data from the scientific echo sounder Sea-Bed discrimination system "RoxAnn", phytobenthos samples and in situ observations by scuba diving and underwater cameras. Regarding the sampling, hard bottom samplings were carried out using SCUBA diving. The samples were collected on hard substrates mainly in the upper infralittoral zone (30 to 50 cm below the lowest sea level). For the study of the soft bottom habitats, oceanographic cruses were carried out with the IMBC R/V “Filia”, using a Smith McIntyre sediment sampler.

  • This map covers the inshore subtidal zone of the Baie de Morlaix. Several surveys surveys were carried out between 2008-2013: (i) optical remote sensing with bathymetric lidar (operated by Bloom Ltd.) and aerial photography (“Ortholittorale 2000”) in very shallow water, (ii) acoustic tools such as multibeam echosounder, side scan sonar and Roxann acoustic ground detection system. Ground truth data was obtained with underwater video, sediment and fauna grab samples interpreted in the lab for particle size analysis and benthos identification. The habitat classification is EUNIS 2007. Map scale is around 1:20000, with local improvements to1:10000

  • 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

  • Region: The county Hordaland Number of field observations: 637 Field sampling year: 2007, 2009 Prevalence: 34% Presence / absences: 215/422 Method: BRT run with the R-package Dismo. Number of predictor variables: 10 Information about the predictor variables: DEM (25 m resolution), slope, aspect, curvature at detailed, medium and coarse resolution (i.e. applying a 125, 525 and 1025 m moving calculating window respectively, based on the 25 m resolution DEM); wave exposure, latitude, longitude, and optimal radiation index, all with 25 m spatial resolution. AUC independent data: 0.96

  • Categories  

    Monthly commercial landings from South African fisheries in South African waters, by port of landing (Lamberts bay to East London) (1897-1906)

  • Categories  

    Annual statistics on Swedish fisheries in the Baltic Sea and Kattegat, by county (1914-1970)

  • The description and mapping of marine habitat types according to Annex I of Directive 92/43/EOK (EEC, 1992) and / or the European Nature Information System (EUNIS) in 66 of approximately 300 Greek NATURA 2000 network sites, were the subject of Research Work for the Ministry of Environment Planning and Public Works of Greece. This research project, under the name "Identification and description of habitat types at sites of interest for conservation", lasted from 1999 to 2002 and was carried out by the National Centre for Marine Research (NCMR, renamed as Hellenic Centre for Marine Research - HCMR since 2003) in association with the Institute of Marine Biology of Crete (IBCM, joined to HCMR since 2003), the Aristotle University of Thessaloniki and the Fisheries Research Institute (FRI). The recognition and imprinting of marine habitat types was based on the combined use of aerial photos of scale 1:5000 acquired during the second half of 1999 for the needs of the project, data from the scientific echo sounder Sea-Bed discrimination system "RoxAnn", phytobenthos samples and in situ observations by scuba diving and underwater cameras. Regarding the sampling, hard bottom samplings were carried out using SCUBA diving. The samples were collected on hard substrates mainly in the upper infralittoral zone (30 to 50 cm below the lowest sea level). For the study of the soft bottom habitats, oceanographic cruses were carried out with the IMBC R/V “Filia”, using a Smith McIntyre sediment sampler.

  • Composite data holdings of habitat point data from groundtruthing data in European waters. Data are collated by EMODnet Seabed Habitats partners from a variety of source datasets and conformed and standardised into the portal's Darwin-core compliant schema. Habitats are described in a variety of classification systems, including EUNIS (European Nature Information System), Habitats Directive Annex I, Marine Strategy Framework Directive Benthic Broad Habitats, Regional sea conventions (HELCOM HUB, OSPAR) and local classifcation systems. Sampling methods are standardised to NERC vocabulary server P01 parameters or ICES vocabulary concepts where possible.