Kelp distribution model across Brittany, France
A habitat distribution modelling approach was used to model the spatial distribution of kelp forests along BritannyÔÇÖs coast (France). Lineage: Data represents percentage cover of kelp forest. The Habitat model was generated from kelp forest presence/absence determined from acoustic surveys of laminarial algae. KdPar, sea surface temperature, depth and current speed were used as predictive variables. Habitat model represents only the areas where kelp forests may occur, not the areas confirmed in field observations. Type of occurrence data used: Acoustic surveys of kelp forest were carried out in spring 2005-2006-2007 in 10 study areas along the coast of Brittany. A specific algorithm was developed for automatic detection of presence/absence of kelp forest from the acoustic data. Environmental covariates/explanatory variables: Covariates used were: - KPAR (proxy of light availability): spatial resolution 1km, averaged values (temporal coverage 7 years -1998-2004-, temporal resolution 1 week) - Sea surface temperature: spatial resolution 1km, averaged values (temporal coverage 20 years, temporal resolution 1 week) - Tidal current velocity: spatial resolution 300m, maximum values (temporal coverage one mean spring tide) Algorithm/modelling approach: A stepwise multiple regression with a backward selection of variables was used to predict values of kelp frequency (%)For EMODNet Seabed habitats portal, the dataset was scaled between 0-1. Original data is 0-100.
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Alternate title | FR300004 |
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Date | 2010-04-11 |
Date type | Publication: Date identifies when the resource was issued |
Unique resource identifier | DOI:10.12770/9617fdd6-e960-4e17-8d23-8f75911d774c |
Unique resource identifier | IFR_MORLAIX_KELP_PRESENCE_ABSENCE |
Unique resource identifier | 9617fdd6-e960-4e17-8d23-8f75911d774c |
Credit | Meleder Tard Vona, Populus Jacques, Guillaumont Brigitte, Perrot Thierry, Mouquet Pascal (2010). Predictive modelling of seabed habitats: case study of subtidal kelp forests on the coast of Brittany, France. Marine Biology, 157(7), 1525-1541. Publisher's official version : https://doi.org/10.1007/s00227-010-1426-4 , Open Access version : https://archimer.ifremer.fr/doc/00006/11758/ |
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Point of contact
Individual name | Vona Meleder |
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Organisation name | University of Nantes |
Electronic mail address | vona.meleder@univ-nantes.fr |
Role | Point of contact: Party who can be contacted for acquiring knowledge about or acquisition of the resource |
Point of contact
Individual name | DYNECO |
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Organisation name | IFREMER |
Electronic mail address | sismer@ifremer.fr |
Role | Point of contact: Party who can be contacted for acquiring knowledge about or acquisition of the resource |
Descriptive keywords
GEMET - INSPIRE themes, version 1.0 | |
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GDI-Vlaanderen Trefwoorden | Metadata GDI-Vl-conform |
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GEMET - INSPIRE themes, version 1.0
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Uncategorized
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/Biological Environment/Habitats
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Marine habitat mapping
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Other keywords | Downloadable Data |
Spatial representation type | Grid: Grid data is used to represent geographic data |
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Spatial resolution
Distance | 150 meter |
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Language | English |
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Character set | UTF8: 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 |
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Environment description | Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.1.7333 |
Reference System Information
Unique resource identifier | WGS 84 / UTM zone 30N (EPSG:32630) |
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Codespace | EPSG |
Hierarchy level | Dataset: Information applies to the dataset |
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Lineage
Statement | Data represents percentage cover of kelp forest. The Habitat model was generated from kelp forest presence/absence determined from acoustic surveys of laminarial algae. KdPar, sea surface temperature, depth and current speed were used as predictive variables. Habitat model represents only the areas where kelp forests may occur, not the areas confirmed in field observations. For EMODNet Seabed habitats portal, the dataset was scaled between 0-1. Original data is 0-100. |
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Distribution format | Raster Dataset | ||||||||||
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File identifier | 9617fdd6-e960-4e17-8d23-8f75911d774c | ||||||||
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Metadata language | English | ||||||||
Character set | UTF8: 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 | ||||||||
Hierarchy level | Dataset: Information applies to the dataset | ||||||||
Hierarchy level name | dataset | ||||||||
Date stamp | 2022-07-19T11:17:28.408Z | ||||||||
Metadata standard name | INSPIRE Metadata Implementing Rules: Technical Guidelines based on EN ISO 19115 and EN ISO 19119 | ||||||||
Metadata standard version | V. 1.2 | ||||||||
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