Submarine, or exposed at low tide, rocky substrates and biogenic concretions, which arise from the sea floor in the sublittoral zone but may extend into the littoral zone where there is an uninterrupted zonation of plant and animal communities. These reefs generally support a zonation of benthic communities of algae and animals species including concretions, encrustations and corallogenic concretions.
In northern Baltic areas, the upper shallow water filamentous algal-zone with great annual succession is normally well developed on gently sloping shores. Fucus vesiculosus is submerged at depth of 0.5-6 m in the sublittoral zone. A red algae zone occurs below the Fucus zone at depths of about 5 to 10 m.
|EU Habitats Directive||Annex I habitat type (code 1170)|
|Habitat type||Not priority|
|Natura 2000 sites||1157 are designated for this habitat type|
EU conservation status
Conservation status assesses every six years and for each biogeographical region the condition of habitats and species compared to the favourable status as described in the Habitats Directive. The map shows the 2013-2018 assessments as reported by EU Member State. Assessments are further detailed in the summary document available behind the link below.
Species mentioned in habitat description
|Species scientific name||English common name||Species group|
Natura 2000 sites
Protected in the following Natura 2000 sites
Protected sitesPlease note the site map takes a while to display.
Mentioned in the following international legal instruments and agreements
Relation to habitat classifications
|Classification||Code||Habitat type name||Relationship type|
|German Federal List of Biotopes||030208||Austernbank des Sublitorals der Nordsee||narrower|
|German Federal List of Biotopes||030207||Miesmuschelbank des Sublitorals der Nordsee||narrower|
|German Federal List of Biotopes||010204a||Riffe der Nordsee (Benthal mit Hartsybstrat, ohne Muschelbänke u. Sabellaria)",||narrower|
|German Federal List of Biotopes||020204a||Riffe der Ostsee (Benthal mit Hartsybstrat)||narrower|
|German Federal List of Biotopes||030209||Sabellaria-Riff des Sublitorals der Nordsee||narrower|