|Basic Information||Biotope classification||Ecology||Habitat preferences and distribution||Species composition||Sensitivity||Importance|
LR.MLR.BF recorded () and expected () distribution in Britain and Ireland (see below)
|Lomentaria articulata||21-40 %|
|Membranoptera alata||1-20 %|
|Leathesia difformis||1-20 %|
|Ascophyllum nodosum||1-20 %|
|Fucus serratus||61-80 %|
|Pelvetia canaliculata||1-20 %|
|Chthamalus montagui||1-20 %|
|Patella vulgata||61-80 %|
|Gibbula umbilicalis||1-20 %|
|Melarhaphe neritoides||1-20 %|
|Flustrellidra hispida||1-20 %|
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|
|Key structural||Fucus serratus||Toothed wrack|
|Key structural||Ascophyllum nodosum||Egg wrack|
|Key structural||Semibalanus balanoides||An acorn barnacle|
|Key functional||Patella vulgata||Common limpet|
|Important other||Hyale prevostii||An amphipod|
The seaweeds Fucus serratus and Ascophyllum nodosum and the barnacle Semibalanus balanoides are the key structural species for barnacle and fucoid shores. Patella vulgata is the dominant grazer in the biotope and contributes to the regulation of algal patches. The amphipod Hyale prevostii has been included because it is a characteristic species of fucoid dominated rocky shores, an important mesograzer and because amphipods are generally regarded as sensitive species. In undertaking an assessment of sensitivity of this biotope, account is taken of knowledge of the biology of all characterizing species in the biotope. However, the selected 'indicative species' are particularly important in undertaking the assessment because they have been subject to detailed research.
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This review can be cited as follows:
Hill, J.M. 2000. Barnacles and fucoids (moderately exposed shores). Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 24/07/2014]. Available from: <http://www.marlin.ac.uk/habitatreproduction.php?habitatid=33&code=1997>