Littoral muddy sands
Compiled by: Leigh Jones, Joint lNature Conservation Committee, Monkstone House, City
Road, Peterborough PE1 IJY, UK.
Derived, in part, from: the UK marine biotope classification (Connor et al.
1997a) and a review undertaken for the UK Marine SACs Project (Elliott et al.1998).
|Europe (EUNIS Nov. 1999)
||Littoral sands and muddy sands
||Mixed flats, free of vegetation
|Britain/Ireland (MNCR BioMar 97.06)
||Littoral muddy sands
||Sables fins plus ou moins envasés
Shores of muddy sand, typically consisting of particles less than 4 mm in diameter,
where the mud fraction (less than 0.063 mm diameter particles) makes up between 10% and
30% of the sediment. Typically, the sand fraction is medium (particle diameter 0.25-1 mm)
or fine (particle diameter 0.063-0.25 mm) sand. Muddy sand usually forms gently-sloping
flats that remain water-saturated throughout the tidal cycle. They support communities
predominantly of polychaetes and bivalves, including the lugworm Arenicola marina,
the cockle Cerastoderma edule and the Baltic tellin Macoma balthica but may
also have eelgrass Zostera noltii beds (LMS.Znol) (Not included in this review, see
Eelgrass Zostera noltii beds review).
(from MNCR database in February 1999)
Species composition and biodiversity
Sensitivity to human activities
Conservation and protection status