MB4-223 - Association à Stuckenia pectinata (anciennement Potamogeton pectinatus) dans du sédiment hétérogène de l'infralittoral en milieu à salinité réduite en Atlantique

Association with Potamogeton pectinatus in reduced salinity Atlantic infralittoral mixed sediment

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Low and variable salinity infralittoral mud with beds of Potamogeton pectinatus. Other associated species are broadly similar to that of unit MB5-224, with blankets of filamentous green algae such as Enteromorpha intestinalis, Cladophora liniformis and Rhizoclonium riparium. The grazing gastropod Potamopyrgus antipodarum is found in this biotope and juvenile Mytilus edulis have been observed settled on Potamogeton leaves and amongst the algae. The nationally scarce charaphyte Lamprothamnium papulosum may be found to some extent in this biotope but more often in neighbouring habitats (see Plaza & Sanderson 1997). Mysids, trout ( Salmo trutta ), and sticklebacks Gasterosteus aculeatus can be found swimming amongst the vegetation. Mya arenaria may be found in some examples of this biotope, but the infaunal component of this biotope requires further investigation but is likely to contain oligochaetes, Arenicola marina, Corophium volutator and Gammarus spp.

Bibliography

European Topic Centre on Biological Diversity 2022. EUNIS marine habitat classification 2022 including crosswalks. Table Excel. (Source)