Marais salants de Guérande, traicts du Croisic et dunes de Pen-Bron

Quick facts

  • Natura 2000 site (code FR5200627)
  • Under Habitats Directive
  • Since March 2002
  • Country: France
  • Administrative region: Pays de la Loire (FR51)
  • Surface area: 44 km2 (4376.00 ha)
  • Marine area: 29%
  • Located in Atlantic biogeographical region
  • It protects 6 species of the Nature Directives
  • It protects 27 habitat types of the Habitats Directive

Source and more information: Natura 2000 Standard Data Form



Species summary

Nature directives' species in this site (6)
Species group Number
Flowering Plants 2
Invertebrates 3
Mammals 1

Habitat types

Habitat type code Habitat type english name Cover [ha]
1110 Sandbanks which are slightly covered by sea water all the time 218.79
1130 Estuaries 87.52
1140 Mudflats and sandflats not covered by seawater at low tide 568.86
1150 Coastal lagoons 437.58
1160 Large shallow inlets and bays 62.99
1170 Reefs 112.2
1210 Annual vegetation of drift lines 1
1230 Vegetated sea cliffs of the Atlantic and Baltic Coasts 1
1310 Salicornia and other annuals colonizing mud and sand 1
1320 Spartina swards (Spartinion maritimae) 32
1330 Atlantic salt meadows (Glauco-Puccinellietalia maritimae) 146
1410 Mediterranean salt meadows (Juncetalia maritimi) 2
1420 Mediterranean and thermo-Atlantic halophilous scrubs (Sarcocornetea fruticosi) 32.1
2110 Embryonic shifting dunes 0.5
2120 Shifting dunes along the shoreline with Ammophila arenaria ('white dunes') 6.1
2130 Fixed coastal dunes with herbaceous vegetation ('grey dunes') 88.7
2150 Atlantic decalcified fixed dunes (Calluno-Ulicetea) 0.6
2180 Wooded dunes of the Atlantic, Continental and Boreal region 85
2190 Humid dune slacks 42
2270 Wooded dunes with Pinus pinea and/or Pinus pinaster 218.79
3130 Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or of the Isoeto-Nanojuncetea 43.76
3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp 1
4030 European dry heaths 2
6230 Species-rich Nardus grasslands, on silicious substrates in mountain areas (and submountain areas in Continental Europe) 43.76
6510 Lowland hay meadows (Alopecurus pratensis, Sanguisorba officinalis) 218.79
9120 Atlantic acidophilous beech forests with Ilex and sometimes also Taxus in the shrublayer (Quercion robori-petraeae or Ilici-Fagenion) 35
9190 Old acidophilous oak woods with Quercus robur on sandy plains 1.05

Designation information

NATURA 2000 is the ecological network for the conservation of wild animals and plant species and natural habitats of Community importance within the Union. It consists of sites classified under the Birds Directive and the Habitats Directive (the Nature Directives).

NATURA 2000 site under

Birds Directive 2009/147/EC (SPA) Not under Birds directive
Habitats Directive 92/43/EEC (SCI) Under Habitats directive
  • Date proposed as Site of Community Importance (SCI)
March 2002
  • Date confirmed as Site of Community Importance
December 2009
Date designated as Special Area of Conservation (SAC) April 2015
Date of Standard data form update July 2008

Interactive map

Other resources

Natura 2000 map viewer Interactive map designed for showing and querying Natura 2000 sites. Other information such as Nationally designated areas and LIFE projects are also available.
Protected planet map viewer Interactive map showing the World Database on Protected Areas
European protected sites map viewer Simple interactive map showing Natura 2000 sites and Nationally designated areas
Data download The Natura 2000 dataset is available from the European Environment Agency website
European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Phone: +45 3336 7100