Biodiversity & Conservation

Ampharete falcata turf with Parvicardium ovale on cohesive muddy very fine sand near margins of deep stratified seas

COS.COS.AmpPar


COS.AmpPar

Image Matthew Service - Ampharete falcata turf with Nephrops sp. from the southern edge of the north west Irish Sea. Image with ca 2 m.
Image copyright information

Distribution map

COS.COS.AmpPar recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)



Text page icon Habitat description

Map icon Distribution of biotope in Britain and Ireland Recorded from Loch Etive and the Irish Sea.
National importance Scarce

Text page icon Description of biotope

For a full description of this biotope including characterizing species, distribution, survey information and references visit JNCC

Dense stands of Ampharete falcata tubes which protrude from muddy sediments, appearing as a turf or meadow in localised areas. These areas seem to occur on a crucial point on a depositional gradient between areas of tide-swept mobile sands and quiescent stratifying muds. Dense populations of the small bivalve Parvicardium ovale occur in the superficial sediment. Both Amphiura filiformis and Amphiura chiajei may be present together with Nephrops norvegicus in higher abundance than the CMU.BriAchi or CMS.AfilEcor biotopes. Substantial populations of mobile epifauna such as Pandalus montagui and smaller fish also occur, together with those that can cling to the tubes, such as Macropodia spp. A similar turf of Melinna cristata, a maldanid worm, has been recorded from Northumberland (Buchanan, 1963). (Information taken from the Marine Biotope Classification for Britain and Ireland, Version 97.06: Connor et al., 1997a, b).

Additional information icon Additional information


This review can be cited as follows:

Hill, J.M. 2001. Ampharete falcata turf with Parvicardium ovale on cohesive muddy very fine sand near margins of deep stratified seas. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 17/12/2014]. Available from: <http://www.marlin.ac.uk/habitatsbasicinfo.php?habitatid=75&code=1997>