Biodiversity & Conservation

Laminaria saccharina, Chorda filum and filamentous red seaweeds on sheltered infralittoral sediment

SS.IMX.KSwMx.LsacX


IMX.LsacX

Image Anon. - Saccharina latissima, Chorda filum and filamentous red seaweeds on sheltered infralittoral sediment. Image width ca 50 cm in foreground.
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Distribution map

SS.IMX.KSwMx.LsacX recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • EC_Habitats

Text page icon Habitat description

Map icon Distribution of biotope in Britain and Ireland Particularly widespread in sealochs in Scotland and in sheltered areas of Orkney and Shetland. Also recorded from harbours, rias and estuaries in south-west Britain.
National importance Not available

Text page icon Description of biotope

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

Very sheltered infralittoral sandy and muddy mixed cobbles, pebbles and gravels with the cape form of Laminaria saccharina and Chorda filum. Beneath the kelp canopy, a variety of filamentous and foliose red algae are usually present, along with filamentous brown ectocarpoid algae. In the sandier sediments Cerianthus lloydii and terebellids such as Lanice conchilega are common. Where the cobbles, pebbles and gravels occur on muddier sediments, the infauna is characterized by a range of polychaetes and bivalves. This biotope is currently very broadly defined, and is likely to be further sub-divided following detailed data analysis, as the infauna and associated seaweeds appear to be distinctive depending on the specific sediment type. (Information taken from the Marine Biotope Classification for Britain and Ireland, Version 97.06: Connor et al., 1997a, b). NB. Laminaria saccharina is now considered to be a synonym of Saccharina latissima.

Additional information icon Additional information


This review can be cited as follows:

Hiscock, K. 2001. Laminaria saccharina, Chorda filum and filamentous red seaweeds on sheltered infralittoral sediment. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 22/07/2014]. Available from: <http://www.marlin.ac.uk/habitatsbasicinfo.php?habitatid=58&code=1997>