You are here: Balance gallery > Baltic

Reefs (Natura 2000 code 1170)

by Johnny Reker

Showing 1-15 of 15 | Up
Reef in Kattegat by Mette Dahl
Laminaria sp. by Karsten Dahl
Reef animals by Karsten Dahl
Shallow coastal reef by Karsten Dahl
Laminaria digitata by Karsten Dahl
Dilsea carnosa by Karsten Dahl
Crust-forming algae by Karsten Dahl
Seaweeds on a shallow reef by Karsten Dahl
Seaweed community in deeper waters by Karsten Dahl
Seaweed community in deep waters by Karsten Dahl
Shallow reef in Finland by Metsähallitus
Fucus vesiculosus dominated reef by Metsähallitus
Boulder beach
Deep water reef in central Kattegat by Jan  Nicolaisen, Orbicon

Description: The "Interpretation Manual of European Union Habitats", Oct. 1999, defines Reefs (1170) as "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 generelly support a zonation of benthic communities of algae and animal 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 0.5-6m in the sublittoral zone. A red algae zone occurs below the Fucus zone at depths of 5-10m."

The gallery aim to show the broad variety of reefs present in the Baltic and Kattegat both at the geographical scale as well as the change which occurs from shallow seaweed dominated areas to deeper more animal dominated areas of the reef.
Copyright: BALANCE