|Basic Information||Biotope classification||Ecology||Habitat preferences and distribution||Species composition||Sensitivity||Importance|
Image Anon. - Arenicola marina and synaptid holothurians in extremely shallow soft mud. Image width ca 40 cm in foreground.
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SS.SMu.IFiMu.Are recorded () and expected () distribution in Britain and Ireland (see below)
For a list of 2004 characterising species please see the JNCC website.
To assess the sensitivity of the biotope, the sensitivity of component species is reviewed. Those species that are considered to be particularly indicative of the sensitivity of the biotope, and for which research has been undertaken in detail are shown below (see selection criteria). The biology of other component species of the biotope is also taken into account wherever information is known to the researcher.
|Community Importance||Species name||Common Name|
|Important characterizing||Arenicola marina||Blow lug|
|Important characterizing||Labidoplax media||A sea cucumber|
|Important characterizing||Leptosynapta bergensis||A sea cucumber|
This biotope is characterized by the presence of Arenicola marina and the abundant synaptid holothurians such as Labidoplax media, Leptosynapta bergensis and Leptosynapta inhaerens. Arenicola marina does not reach high densities in soft, flocculent muds. Its abundance is variable in this biotope but may reach sufficient densities to modify the substratum with mounds and funnels in some instances of the biotope, however the blow lug was absent in one record of this biotope, a flocculent mud plain (JNCC, 1999).
The MNCR recorded 292 species within this biotope, although not all are present in each instance of the biotope (JNCC, 1999).
This review can be cited as follows:
Tyler-Walters, H. 2001. Arenicola marina and synaptid holothurians in extremely shallow soft mud.. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 11/03/2014]. Available from: <http://www.marlin.ac.uk/habitatreproduction.php?habitatid=108&code=2004>