Biodiversity & Conservation

Ocnus planci aggregations on sheltered sublittoral muddy sediment

SS.IMU.MarMu.Ocn


IMU.Ocn

Image Dominic Counsell - Aggregation of Ocnus planci on broken shell and cobbles. Image width ca 40 cm.
Image copyright information

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Distribution map

SS.IMU.MarMu.Ocn recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • EC_Habitats

Recorded distribution in Britain and Ireland

Recorded from Wide Firth in Orkney; Carlingford Lough, Northern Ireland, and Loch Goil, Loch Craignish, and Loch Erisort in western Scotland.

Habitat preferences

Temperature range preferences - Data deficient

Water clarity preferences - Data deficient

Limiting Nutrients - Not relevant

Other preferences - Hard substrata

Additional information

The biotope is characterized by the presence of hard substrata (cobbles, pebbles, gravel, and shell debris) in muddy or sandy habitats.


This review can be cited as follows:

Tyler-Walters, H. 2002. Ocnus planci aggregations on sheltered sublittoral muddy sediment. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 31/10/2014]. Available from: <http://www.marlin.ac.uk/habitatpreferences.php?habitatid=325&code=1997>