• Metadata catalogue
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Kelp distribution model across Brittany (France)

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.
 
Citation proposal
Vona Meleder (University of Nantes) (2010) . Kelp distribution model across Brittany (France). IFREMER https://services.mspdata.eu:/geonetwork/srv/api/records/9617fdd6-e960-4e17-8d23-8f75911d774c

Simple

Date ( Publication )
2010-04-11T00:00:00
Identifier
IFR_MORLAIX_KELP_PRESENCE_ABSENCE
Identifier
DOI:10.12770/9617fdd6-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/

  Author

University of Nantes - Vona Meleder  

  Publisher

IFREMER - DYNECO  

GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Habitats and biotopes
Thèmes Sextant ( Theme )
  • /Biological Environment/Habitats
Specific usage

 

-  

Use limitation
Creative Commons license to apply : Attribution + Non Commercial + No Derivs (BY-NC-ND) : http://creativecommons.org/licenses/?lang=en
Access constraints
Other restrictions
Use constraints
Copyright
Other constraints
Limited usability. The product thematic accuracy is low.
Spatial representation type
Grid
Distance
150  meter
Metadata language
English
Character set
UTF8
Topic category
  • Environment
N
S
E
W


Reference system identifier
EPSG / WGS 84 / UTM zone 30N (EPSG:32630) / 8.6
Number of dimensions
2
Dimension name
Column
Dimension size
5462
Dimension name
Row
Dimension size
5674
Cell geometry
Area
Transformation parameter availability
true
Distribution format
  • ( )

OnLine resource
KELP_DISTRIBUTION_MODEL_BRITTANY  

Kelp distribution model across Brittany

Protocol
FILE
Name
KELP_DISTRIBUTION_MODEL_BRITTANY
Description
Kelp distribution model across Brittany
OnLine resource
DOI du jeu de donnée  

DOI du jeu de donnée

Hierarchy level
Dataset

Conformance result

Date ( Publication )
2010-12-08
Explanation
See the referenced specification
Statement

A habitat distribution modelling approach was used to model the spatial distribution of kelp forests along Britanny’s 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 (%)

Metadata

File identifier
9617fdd6-e960-4e17-8d23-8f75911d774c   XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2019-02-06T15:37:10
Metadata standard name
ISO 19115:2003/19139 - SEXTANT
Metadata standard version
1.0

  Point of contact

IFREMER - Vasquez Mickael  
Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané Brest France

  02 98 22 46 23  
  02 98 22 45 48 
 
 

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