ICES Metadata Catalogue
Modelled occurrence probability for Posidonia oceanica meadows across the Mediterranean Sea
This dataset is an output of the ÔÇ£Mediterranean Sensitive HabitatsÔÇØ project (MEDISEH). It shows under a raster form modelled spatial distributions of Posidonia oceanica across the Mediterranean Sea. Posidonia oceanica is endemic to the Mediterranean Sea, where it is the dominant seagrass, covering about 50,000 km2 of coastal to offshore sandy and rocky areas down to depths of about 45 m. P. oceanica is a protected species according to EU legislation (Habitat directive), the Bern and Barcelona Conventions and several national legislations. While its distribution is well documented along the European shores of the western Mediterranean Sea, limited information is available about the southern shore and the eastern Mediterranean Sea. In order to bridge this information gap, one of the goals of Task 1.3 of the MEDISEH project was to model P. oceanica distribution across the whole Mediterranean basin.
A Random Forest (i.e. a Machine Learning technique) was ÔÇ£trainedÔÇØ on data from regions where information was available and then used to predict the probability of occurrence of P. oceanica where needed.
The raster has a spatial resolution of 0.004166 decimal degrees, and the values are in the [0,1] interval (occurrence probabilities).
Simple
- Date (Publication)
- 2013-12-31T11:35:00
- Presentation form
- Digital map
- Purpose
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The work was financed through a service contract for the Directorate-General for Maritime Affairs and Fisheries (DG-MARE, Specific Contract SI2.600741)
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role Michele Scardi
Author Marianna Giannoulaki
Principal investigator EMODnet habitat
info@emodnet-seabedhabitats.eu
Distributor
- Maintenance and update frequency
- Not planned
- Theme
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Posidonia oceanica
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Marine habitat mapping
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GEMET - INSPIRE themes, version 1.0
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Habitats and biotopes
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- Use limitation
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Creative Commons Attribution 3.0 Unported (CC BY 3.0)
- Use limitation
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Viewable and downloadable
- Access constraints
- License
- Use constraints
- License
- Spatial representation type
- Grid
- Denominator
- 200000
- Language
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eng
- Character set
- UTF8
- Topic category
-
- Environment
))
- Supplemental Information
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Reference
Giannoulaki M, Belluscio A, Colloca F, Fraschetti S, Scardi M, Smith C, Panayotidis P, Valavanis V, Spedicato MT (Eds.) (2013). Mediterranean Sensitive Habitats (MEDISEH), final project report. DG MARE Specific Contract SI2.600741. Heraklion (Greece): Hellenic Centre for Marine Research. 557 p. URL: http://mareaproject.net/download/71/
Please refer to this final report of the MEDISEH project (section on Task 1.3) for full details on the methodology, results and interpretation of the maps showing the predicted occurrence probability for P. oceanica meadows (Figures 1.3.7-11).
The authors would also like to express their gratitude to those who kindly shared their occurrence data on Posidonia oceanica, and without whose inputs this work would not have been possible
- Reference system identifier
- WGS 1984
- Distribution format
-
Name Version
- OnLine resource
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Protocol Linkage Name WWW:DOWNLOAD-1.0-http--download
https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_open_maplibrary/wcs?SERVICE=WCS&VERSION=2.0.0&REQUEST=GetCoverage&coverageId=emodnet_open_maplibrary:mediseh_posidonia OGC:WMS-1.1.1-http-get-map
- Hierarchy level
- Dataset
Conformance result
- Date
- Pass
- No
Conformance result
- Date (Publication)
- Pass
Metadata
- File identifier
- a93cffc8-8f45-47a4-a9bd-c8ffd9ad53fb XML
- Metadata language
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eng
- Character set
- UTF8
- Date stamp
- 2022-02-01T16:43:30
- Metadata standard name
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ISO 19115:2003/19139
- Metadata standard version
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1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role EMODnet habitat
info@emodnet-seabedhabitats.eu
Distributor
Overviews
Spatial extent
Provided by
