RED LIST Biotope Expert Team
bottoms in the aphotic zone with at least 90 % coverage of coarse sediment.
Coarse sediment has less than 20 % of mud/silt/clay fraction (<63 µm), and
the proportion of gravel and pebbles (grain size 2–63 mm) exceeds 30 % of the
combined gravel and sand fraction
range: All; Exposure range: All; Depth range: Below photic zone ‑ more common
in the shallow.
Whole Baltic Sea
2.4.1 Aphotic zone
A5 Sublittoral sediment
A5.1 Sublittoral coarse sediment
A5.11 Infralittoral coarse sediment in low or reduced salinity
A5.114 : Baltic gravel bottoms of the aphotic zone
Click here to go back to HUB classification