⌘K
Biotope - Typologie Européenne EUNIS
A3.3 - Niveau 3 : Roche infralittorale de l'Atlantique et de la Méditerranée sous faible hydrodynamisme
Description
Infralittoral rock in wave and tide-sheltered conditions, supporting silty communities with Laminaria hyperborea and/or Laminaria saccharina (A3.31). Associated seaweeds are typically silt-tolerant and include a high proportion of delicate filamentous types. In turbid-water estuarine areas, the kelp and seaweeds (A3.32) may be replaced by animal-dominated communities (A3.36) whilst stable hard substrata in lagoons support distinctive communities (A3.34).
Taxons (Liens actifs si espèces présentes)
A3.34 - Niveau 4 : Fucales, algues vertes ou algues rouges submergées sur roche infralittorale en milieu à faible salinité
Description
Very shallow submerged rocky habitats in lagoons, subject to reduced or permanently low salinity conditions. These particular conditions lead to a variety of seaweed-dominated communities, which include fucoids and green filamentous species. The fucoids, more typical of intertidal habitats, penetrate into the subtidal under the reduced salinity conditions which are not tolerated by kelps.
Taxons (Liens actifs si espèces présentes)
Chondrus crispus Stackh., 1797 ( Esp. caract. )
Cladophora rupestris (L.) Kütz., 1843 ( Esp. caract. )
Corallinaceae Lamouroux, 1812 ( Esp. caract. )
Ectocarpaceae sp. ( Esp. caract. )
Enteromorpha intestinalis (L.) Nees, 1820 ( Esp. caract. )
Mastocarpus stellatus (Stackh.) Guiry, 1984 ( Esp. caract. )
Mysidae sp. ( Esp. caract. )
Polyides rotunda (Hudson) Gaillon, 1828 ( Esp. caract. )
Cladophora rupestris (L.) Kütz., 1843 ( Esp. caract. )
Corallinaceae Lamouroux, 1812 ( Esp. caract. )
Ectocarpaceae sp. ( Esp. caract. )
Enteromorpha intestinalis (L.) Nees, 1820 ( Esp. caract. )
Mastocarpus stellatus (Stackh.) Guiry, 1984 ( Esp. caract. )
Mysidae sp. ( Esp. caract. )
Polyides rotunda (Hudson) Gaillon, 1828 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)