Fucus serratus and red seaweeds on moderately exposed lower eulittoral rock
|Within Vocab||Marine Habitat Classification for Britain and Ireland Version 97.06|
|Definition||Moderately exposed lower eulittoral bedrock and boulders may be characterised by mosaics of Fucus serratus and turf-forming red algae such as Osmundea (Laurencia) pinnatifida or Mastocarpus stellatus. The Fucus serratus canopy is generally less dense (frequent - abundant) than on more sheltered shores (common - super abundant), and contains a much greater number and abundance of red algae (compare with Fser.Fser). Other canopy algae such as Himanthalia elongata and Laminaria digitata may also occur, though never at high abundance (generally less than frequent). On boulder shores and uneven bedrock F. serratus and red algae often dominate the upper-facing surfaces, while steep or vertical rock is characterised by Semibalanus balanoides and Patella vulgata (BPat). In addition, such shores provide a greater number of permanently damp refuges between the stones. Within these micro-habitats, anemones (Actinia equina), crabs (Carcinus maenas), and gastropods (Gibbula cineraria and Littorina littorea) are found.|
|Has Current Version||1|
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