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Concept: Green seaweeds ([Enteromorpha] spp. and [Cladophora] spp.) in shallow upper shore rockpools in the eunishabitats vocabulary

Concept URI http://eunis.eea.europa.eu/eunishabitats/A1.421
Preferred label Green seaweeds ([Enteromorpha] spp. and [Cladophora] spp.) in shallow upper shore rockpools
Definition Rockpools in the littoral fringe or upper eulittoral zone subject to widely fluctuating temperatures and salinity are characterised by ephemeral green alga of the genus [Enteromorpha], along with [Cladophora] spp. and [Ulva lactuca]. Due to the physical stress imposed on these upper shore pools, grazing molluscs such as the limpet [Patella vulgata] and the winkles [Littorina littorea] and [Littorina saxatilis] are generally in lower abundance than eulittoral pools, allowing the green seaweeds to proliferate under reduced grazing pressures. The bright orange copepod [Tigriopus fulvus] is tolerant of large salinity fluctuations and may occur in large numbers in these upper shore pools, along with gammarid amphipods. Situation: Rockpools throughout the upper eulittoral and lower littoral fringe in bedrock. Temporal variation: Fluctuations especially in the abundance of the green seaweeds will occur due to marked changes in salinity and temperature during the year. [Enteromorpha intestinalis] can often be bleached during the summer.
Notation A1.421
Status Valid
Status Modified 2014-01-31
Accepted Date 2014-01-31
Not Accepted Date
Has broader
Has exact match