Biological indices based on diatoms - Sélune Observatory

Microbial communities play a major role in the functioning of ecosystems: they are at the base of the food chain (primary production) and participate in the degradation of organic matter. These communities are also known to respond rapidly to environmental changes. Like macro-invertebrates, they can be used as ecological indicators.


Benthic diatoms are the main photosynthetic organisms in this biological community. The relative abundance of the various species is used to calculate an environmental quality index (EQI). Major differences in communities between the upstream and downstream zones were observed when the dams were in place. These differences will change once the dams are removed.


As part of the Sélune Observatory, the stations are sampled every month from April to October (7 annual surveys) using artificial substrates (glass slides placed in the water). In addition to the diatom survey (floristic list, IBD calculation), the chlorophyll a concentration is measured.


This layer gives the IBD and EQR (normalised) index value for a station during a campaign.

Simple

Date (Creation)
2025-03-05T16:00:00
Edition

2025
Citation identifier
fr-20250303103810-umrsas-selune-v_bioc_biofilm_eval_biofilm
Purpose

This layer gives the results obtained for the IBD and IBD EQR indices
Status
On going
Point of contact
Organisation name Individual name Electronic mail address Role

INRAE DECOD

Jean-Marc Roussel

jean-marc.roussel@inrae.fr

Point of contact

INRAE DECOD

Gorzérino Caroline

caroline.gorzerino@inrae.fr

Point of contact

AESN

aesn@aesn.fr

funder

Université de Rennes

Pannard Alexandrine

alexandrine.pannard@univ-rennes.fr

Point of contact

INRAE U3E

Nadine Herrard

nadine.herrard@inrae.fr

Custodian
Maintenance and update frequency
As needed
Maintenance note

Last update: 05/03/2024 with autumn 2024 data
Theme

  • Open data
Theme

  • Limit

INSPIRE themes

  • Environmental monitoring facilities

  • Environnement

GEMET

  • biology

  • fauna

  • environment
Use limitation

Unrestricted use subject to the following compulsory wording on all distribution documents: "Source: INRAE - U3E".
Use limitation

Open licence : https://www.etalab.gouv.fr/licence-ouverte-open-licence

Access constraints
Other restrictions
Use constraints
License
Other constraints

No public access restriction
Spatial representation type
Vector
Denominator
25000
Language

fre
Topic category
  • Environment
  • Location
N
S
E
W
thumbnail


Begin date
2014-01-01
End date
2027-12-31
Reference system identifier
RGF93 / Lambert-93 (EPSG:2154)
Geometric object type
Point

Distributor

Distributor contact
Organisation name Individual name Electronic mail address Role

UMR 1069 SAS INRA - Agrocampus Ouest

Pole GéoSAS

geosas_adm@framalistes.org

Distributor
Distributor format
Name Version

ESRI Shapefile

1.0
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

 		https://programme-selune.com/fr/observatoire/

Selune Observatory

OGC:WMS

 		https://geosas.fr/geoserver/selune/ows?service=WMS

v_bioc_biofilm_eval_biofilm

OGC:WFS

 		https://geosas.fr/geoserver/selune/ows?service=WFS

selune:v_bioc_biofilm_eval_biofilm

WWW:DOWNLOAD-1.0-http--download

 		https://geosas.fr/geoserver/selune/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=selune%3Av_bioc_biofilm_eval_biofilm&outputFormat=application%2Fjson

Download ‘Biological indices based on diatoms - Sélune Observatory’ in JSON format

WWW:DOWNLOAD-1.0-http--download

 		https://geosas.fr/geoserver/selune/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=selune%3Av_bioc_biofilm_eval_biofilm&outputFormat=csv

Download "Biological indices based on biofilms - Sélune Observatory" in CSV format

WWW:DOWNLOAD-1.0-http--download

 		https://geosas.fr/geoserver/selune/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=selune%3Av_bioc_biofilm_eval_biofilm&outputFormat=SHAPE-ZIP

Download ‘Biological indices based on diatoms - Sélune Observatory’ in shapefile format
Hierarchy level
Dataset

Conformance result

Date (Publication)
2013-12-10
Explanation

Non Evalué
Pass
No
Statement

Floristic lists and abundances obtained in accordance with standard NF T90-354 (November 2021).


The list of fields presented in this dataset is specified in the associated catalogue.
Feature catalogue citation

Metadata

File identifier
189012a1-cced-488e-8d3a-cf5cb28a7708 XML
Metadata language

fre
Character set
UTF8
Parent identifier
Programme scientifique Sélune

32b2d23e-0f67-46fb-ad72-110514f1c8ee
Hierarchy level
Dataset
Date stamp
2025-04-02T16:06:38
Metadata standard name

ISO 19115
Metadata standard version

1.0
Metadata author
Organisation name Individual name Electronic mail address Role

UMR 1069 SAS INRA - Agrocampus Ouest

GéoSAS

geosas_adm@framalistes.org

Point of contact
Other language
Language Character encoding
English
French UTF8
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords

Limit Open data
GEMET
biology environment fauna
INSPIRE themes
Environmental monitoring facilities Environnement

Provided by

Access to the catalogue

Associated resources

Not available