HELCOM RED LIST Biotope Expert Team
Balticaphotic bottoms with at least 90 % coverage of sand. Sand has less than 20 % of mud/silt/clay fraction (<63 µm), and the proportion of sand (grain size 0.063–2 mm) exceeds 70% of the combined gravel and sand fraction. Sessile/semi-sessile epibenthic macrofauna is not present. Biomass of infaunal polychaetes dominates and is the highest in the group infaunal bivalves/polychaetes/crustaceans/insect larvae.
Substrate is sand. Depth below approximately 30 m. Appears in high energy exposure areas.
Pygospio elegans, Marenzelleria spp., Hediste diversicolor, Ophelia spp. and Travisia forbesii
Diversity, abundance and biomass of fauna.
Whole Baltic Sea
HELCOM 1998: 2.5 Sandy bottoms
2.5.1 Aphotic zone
A5 Sublittoral sediment
A5.2 Sublittoral sand
A5.27 Deep circalittoral sand
A5.273 Baltic sandy bottoms of the aphotic zone
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HELCOM HUB: Technical Report on the HELCOM Underwater Biotope and habitat classification BSEP 139