Liste des biotopes et milieux floristiques.Biotope - Typologie Européenne EUNIS
A1.315 - Niveau 5 : Fucus serratus sur roche abritée du médiolittoral inférieur
Description
Sheltered to extremely sheltered lower eulittoral rock with Fucus serratus (for detailed description of the rich associated community please see unit A1.3151). Two variants of this biotope have been described; - Fully marine conditions (A1.3151) and mixed substrata (A1.3152). Please notice that three other biotopes with a F. serratus dominance have been described: Variable salinity (A1.326), tide-swept (A1.152) and tide-swept on mixed substrata (A1.153).
Situation: This biotope usually occurs immediately below a dense canopy of Fucus vesiculosus (A1.313) on sheltered shores or an Ascophyllum nodosum zone (A1.3141) on sheltered shores; consequently low densities of these species may occur in this biotope. The sublittoral fringe below is dominated by the kelps Laminaria saccharina and Laminaria digitata on sheltered shores (A3.3131; A3.3121).
Taxons (Liens actifs si espèces présentes)
Cladophora rupestris (L.) Kütz., 1843 ( Esp. caract. )
Corallinaceae Lamouroux, 1812 ( Esp. caract. )
Enteromorpha intestinalis (L.) Nees, 1820 ( Esp. caract. )
Mastocarpus stellatus (Stackh.) Guiry, 1984 ( Esp. caract. )
Ulva lactuca L., 1753 ( Esp. caract. )
Corallinaceae Lamouroux, 1812 ( Esp. caract. )
Enteromorpha intestinalis (L.) Nees, 1820 ( Esp. caract. )
Mastocarpus stellatus (Stackh.) Guiry, 1984 ( Esp. caract. )
Ulva lactuca L., 1753 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)