Mapping of boulder fields in the Iroise marine natural park (2010)
The term "boulder fields" covers areas of boulders of the lowest levels of the foreshore which are uncovered during low tides. They are not really part of the mediolittoral (intertidal zone) but what is now defined as the fringe tip (or emerging or upper part) of the infralittoral. More generally, boulder fields, formed by the fragmentation of the rocks in place, are located at the foot of rocky cliffs or between rocky headlands and flats. They are only accessible on foot during tidal coefficients greater than or equal to 95.
Boulder fields naturally harbor a high biodiversity due to their position at the bottom of the foreshore, but the wealth of fauna and flora also depends greatly on the type of architectural habitat. Three broad categories of boulder fields are distinguished: Sediment blocks, blocks of bedrock and blocks on blocks.
Simple
- Title
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Mapping of boulder fields in the Iroise marine natural park (2010)
- Date (Creation)
- 2010-01-01
- Date (Publication)
- 2010-01-01
- Citation identifier
- PN_ATL_LEMAR_Carte_blocs_PNMI_pol_wgs84.shp
- Abstract
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The term "boulder fields" covers areas of boulders of the lowest levels of the foreshore which are uncovered during low tides. They are not really part of the mediolittoral (intertidal zone) but what is now defined as the fringe tip (or emerging or upper part) of the infralittoral. More generally, boulder fields, formed by the fragmentation of the rocks in place, are located at the foot of rocky cliffs or between rocky headlands and flats. They are only accessible on foot during tidal coefficients greater than or equal to 95.
Boulder fields naturally harbor a high biodiversity due to their position at the bottom of the foreshore, but the wealth of fauna and flora also depends greatly on the type of architectural habitat. Three broad categories of boulder fields are distinguished: Sediment blocks, blocks of bedrock and blocks on blocks.
- Credit
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LEMAR – IUEM (UBO)
- Point of contact
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Organisation name Individual name Electronic mail address Role LEMAR – IUEM (UBO)
Christian Hily
Product manager
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Thèmes Sextant
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/Biological Environment/Habitats
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- Theme
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Boulder field, biocenosis, hard bottom mediolittoral
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- Place
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marine natural park
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Iroise Sea
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GEMET - INSPIRE themes, version 1.0
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Habitats and biotopes
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Sous-regions marines
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Celtic Seas
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- Access constraints
- Other restrictions
- Use constraints
- Copyright
- Other legal constraints
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Obligation de Citation : Lejart M., Larzillière A., Hily C. (2010). Etude des herbiers et des champs de blocs du Parc naturel marin d’Iroise: cartographie et caractérisation de l’état de conservation. 184pp.
- Classification
- Unclassified
- Spatial representation type
- Vector
- Language
- Français
- Character set
- UTF8
- Topic category
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- Biota
- Supplemental Information
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Type of habitat:
Natura 2000 : 1170 (1170_9).
EUNIS (2004) : A1.2142
REBENT (2008): P14
- Reference system identifier
- EPSG / WGS84 géographiques / 7.4
- Distribution format
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Name Version Shape ESRI
ArcGIS 9.3.1
- OnLine resource
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Protocol Linkage Name WWW:LINK
http://wwz.ifremer.fr/dcsmm site internet Ifremer dédié à la Directive Cadre Stratégie pour le Milieu Marin
WWW:LINK
http://www.ifremer.fr/sextant/fr/web/dcsmm/223b_biocenoses_fonds_durs_mediolittoral carthothèque DCSMM
OGC:WMS
https://sextant.ifremer.fr/services/wms/dcsmm PN_ATL_LEMAR_Carte_blocs_PNMI_pol_wgs84
- Hierarchy level
- Dataset
- Statement
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Lejart M., Larzillière A., Hily C. (2010). Etude des herbiers et des champs de blocs du Parc naturel marin d’Iroise: cartographie et caractérisation de l’état de conservation. 184pp.
Metadata
- File identifier
- cdfeeebc-c108-4615-81dd-52c484148f82
- Metadata language
- Français
- Other language
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Language Character encoding English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
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Jeu de données
- Date stamp
- 2020-06-04T01:07:37
- Metadata standard name
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ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
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1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role Ifremer Brest - Geosciences Marines
Etienne Laffay
Local service desk