Biodiversity & Conservation

Crepidula fornicata and Aphelochaeta marioni in variable salinity infralittoral mixed sediment

SS.SMx.SMxVS.CreMed


IMX.CreAph

Image Chris Lumb - Crepidula fornicata and Aphelochaeta marioni in variable salinity infralittoral mixed sediment. Image width ca 60 cm.
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Distribution map

SS.SMx.SMxVS.CreMed recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • EC_Habitats
  • UK_BAP

Recorded distribution in Britain and Ireland

IMX.CreAph has been recorded from sheltered estuarine environments in south east England, southern England and south west Wales. There are no records from Ireland.

Habitat preferences

Temperature range preferences - Insufficient information

Water clarity preferences - Medium clarity / Medium turbidity
Low clarity / High turbidity

Limiting Nutrients - No information found

Other preferences -

Additional information

Both Crepidula fornicata and Aphelochaeta marioni, the species characterizing the biotope, are tolerant of a wide range of environmental conditions. For example, they are euryhaline, are found on a variety of substrata and tolerate variations in turbidity. However, they both achieve peak abundances in areas of muddy or mixed muddy sediments such as occur in the hydrographic regime of sheltered bays and lower estuaries (Gibbs, 1969; de Montaduin & Sauriau, 1999). The distribution of the biotope is probably limited by the geographic range of Crepidula fornicata, which only occurs in the southern half of the British Isles.


This review can be cited as follows:

Rayment, W.J. 2001. Crepidula fornicata and Aphelochaeta marioni in variable salinity infralittoral mixed sediment. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 22/11/2014]. Available from: <http://www.marlin.ac.uk/habitatpreferences.php?habitatid=52&code=2004>