Association with [Potamogeton pectinatus]

Low and variable salinity infralittoral mud with beds of [Potamogeton pectinatus]. Other associated species are broadly similar to that of Rup, 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.