Baltic infralittoral mud sediment dominated by Zannichellia spp. and/o rRuppia spp. and /or Zostera noltii
Baltic infralittoral bottoms in the photic zone with at least 90 % coverage of muddy sediment. The sediment must contain at least 20 % of mud, silt or clay (grain size less than 63
Código Eunis 2021: MB6322