⌘K
Biotope - Typologie Européenne EUNIS
A5.5 - Niveau 3 : Sédiment subtidal dominé par des macrophytes
Description
This habitat type includes maerl beds, seaweed dominated mixed sediments (including kelps such as Laminaria saccharina and filamentous/foliose red and green algae), seagrass beds, and lagoonal angiosperm communities. These communities develop in a range of habitats from exposed open coasts to lagoons and are found in a variety of sediment types and salinity regimes.
Taxons (Liens actifs si espèces présentes)
A5.51 - Niveau 4 : Bancs de maërl
Description
Beds of maerl in coarse clean sediments of gravels and clean sands, which occur either on the open coast or in tide-swept channels of marine inlets (the latter often stony). In fully marine conditions the dominant maerl is typically Phymatolithon calcareum (A5.511), whilst under variable salinity conditions in some sealochs beds of Lithothamnion glaciale (A5.512) may develop.
Taxons (Liens actifs si espèces présentes)
Brongniartella byssoides (Goodenough & Woodward) F.Schmitz, 1893 ( Esp. caract. )
Grania sp. ( Esp. caract. )
Lithothamnion glaciale Kjellman, 1883 ( Esp. caract. )
Nematoda sp. ( Esp. caract. )
Nemertea sp. ( Esp. caract. )
Phycodrys rubens (L.) Batters, 1902 ( Esp. caract. )
Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin, 1970 ( Esp. caract. )
Plocamium cartilagineum (L.) P.S.Dixon, 1967 ( Esp. caract. )
Polycirrus sp. ( Esp. caract. )
Trailliella intricata Batters, 1896 ( Esp. caract. )
Grania sp. ( Esp. caract. )
Lithothamnion glaciale Kjellman, 1883 ( Esp. caract. )
Nematoda sp. ( Esp. caract. )
Nemertea sp. ( Esp. caract. )
Phycodrys rubens (L.) Batters, 1902 ( Esp. caract. )
Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin, 1970 ( Esp. caract. )
Plocamium cartilagineum (L.) P.S.Dixon, 1967 ( Esp. caract. )
Polycirrus sp. ( Esp. caract. )
Trailliella intricata Batters, 1896 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)