Biodiversity & Conservation

Sensitivity

Sabellaria alveolata reefs on sand-abraded eulittoral rock

LR.MLR.Sab.Salv

Image Rohan Holt - Sabellaria alveolata reefs on sand abraded eulittoral rocks. Image width ca 150 cm.
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LR.MLR.Sab.Salv recorded () and expected () distribution in Britain and Ireland (see below)

Habitat sensitivity

Physical Factors

Click factor name to view rationale	Intolerance	Recoverability	Sensitivity	Species Richness	Evidence / Confidence
Substratum Loss	High	Moderate	Moderate	Major decline	Low
Smothering	Intermediate	High	Low	Major decline	High
Increase in suspended sediment	Intermediate	High	Low	Decline	Moderate
Decrease in suspended sediment
Desiccation	High	Moderate	Moderate	Major decline	Moderate
Increase in emergence regime	High	Moderate	Moderate	Major decline	Moderate
Decrease in emergence regime
Increase in water flow rate	Intermediate	High	Low	Minor decline	Moderate
Decrease in water flow rate
Increase in temperature	Intermediate	High	Low	Decline	Moderate
Decrease in temperature
Increase in turbidity	Low	Very high	Very low	No change	Moderate
Decrease in turbidity
Increase in wave exposure	High	High	Moderate	Major decline	Moderate
Decrease in wave exposure
Noise	Tolerant	Not relevant	Not sensitive	No change	High
Visual Presence	Tolerant	Not relevant	Not sensitive	No change	High
Abrasion & physical disturbance	Intermediate	High	Low	Decline	Moderate
Displacement	High	Moderate	Moderate	Major decline	High

Chemical Factors

Click factor name to view rationale	Intolerance	Recoverability	Sensitivity	Species Richness	Evidence / Confidence
Synthetic compound contamination	Low	Very high	Very low	Minor decline	Low
Heavy metal contamination	Intermediate	High	Low	Decline	Moderate
Hydrocarbon contamination	Intermediate	High	Low	Decline	Moderate
Radionuclide contamination	Insufficient information	Insufficient information	Insufficient information	Insufficient Information	Not relevant
Changes in nutrient levels	Low	Very high	Very low	No change	Moderate
Increase in salinity	Intermediate	High	Low	Decline	Low
Decrease in salinity
Changes in oxygenation	Intermediate	High	Low	Decline	Low

Biological Factors

Click factor name to view rationale	Intolerance	Recoverability	Sensitivity	Species Richness	Evidence / Confidence
Introduction of microbial pathogens/parasites	Insufficient information	Insufficient information	Insufficient information	Not relevant	Not relevant
Introduction of non-native species	Insufficient information	Insufficient information	Insufficient information	Insufficient Information	Not relevant
Extraction of this species	Intermediate	High	Low	Decline	Moderate
Extraction of other species	Intermediate	High	Low	Decline	Moderate

Species used to indicate biotope intolerance

Physical factors

	Sabellaria alveolata Key structural	Fucus serratus Important structural	Littorina littorea Important functional
Substratum Loss	High	High	High
Smothering	Low	High	High
Increase in suspended sediment	Low	Low	Intermediate
Decrease in suspended sediment
Desiccation	Intermediate	Intermediate	Low
Increase in emergence regime	Intermediate	Intermediate	Low
Decrease in emergence regime
Increase in water flow rate	Intermediate	Intermediate	Intermediate
Decrease in water flow rate
Increase in temperature	Intermediate	Tolerant	Low
Decrease in temperature
Increase in turbidity	Tolerant	Low	Low
Decrease in turbidity
Increase in wave exposure	Intermediate	High	Intermediate
Decrease in wave exposure
Noise	Tolerant	Tolerant	Tolerant
Visual Presence	Tolerant	Tolerant	Tolerant
Abrasion & physical disturbance	Intermediate	Intermediate	Intermediate
Displacement	High	High	Tolerant

Chemical factors

	Sabellaria alveolata Key structural	Fucus serratus Important structural	Littorina littorea Important functional
Synthetic compound contamination	Insufficient information	High	Low
Heavy metal contamination	Insufficient information	Low	Intermediate
Hydrocarbon contamination	Insufficient information	Intermediate	High
Radionuclide contamination	Insufficient information	Insufficient information	Insufficient information
Changes in nutrient levels	Insufficient information	Intermediate	Tolerant
Increase in salinity	Intermediate	Low	Tolerant
Decrease in salinity
Changes in oxygenation	Intermediate	Low	Low

Biological factors

	Sabellaria alveolata Key structural	Fucus serratus Important structural	Littorina littorea Important functional
Introduction of microbial pathogens/parasites	Insufficient information	Insufficient information	Insufficient information
Introduction of non-native species	Insufficient information	Insufficient information	Insufficient information
Extraction of this species	Intermediate	Intermediate	Intermediate
Extraction of other species	Intermediate	Tolerant	Tolerant

Species used to indicate biotope recoverability

Physical factors

	Sabellaria alveolata Key structural	Fucus serratus Important structural	Littorina littorea Important functional
Substratum Loss	Moderate	High	High
Smothering	Immediate	High	High
Increase in suspended sediment	Very high	Very high	High
Decrease in suspended sediment
Desiccation	High	High	Immediate
Increase in emergence regime	High	High	Immediate
Decrease in emergence regime
Increase in water flow rate	High	High	High
Decrease in water flow rate
Increase in temperature	High	Not relevant	Immediate
Decrease in temperature
Increase in turbidity	Not relevant	Very high	Very high
Decrease in turbidity
Increase in wave exposure	High	High	High
Decrease in wave exposure
Noise	Not relevant	Not relevant	Not relevant
Visual Presence	Not relevant	Not relevant	Not relevant
Abrasion & physical disturbance	High	High	High
Displacement	Moderate	High	Not relevant

Chemical factors

	Sabellaria alveolata Key structural	Fucus serratus Important structural	Littorina littorea Important functional
Synthetic compound contamination	Insufficient information	High	Very high
Heavy metal contamination	Insufficient information	High	High
Hydrocarbon contamination	Insufficient information	High	High
Radionuclide contamination	Insufficient information	Insufficient information	Insufficient information
Changes in nutrient levels	Insufficient information	High	Not relevant
Increase in salinity	High	Very high	Not relevant
Decrease in salinity
Changes in oxygenation	High	Very high	Very high

Biological factors

	Sabellaria alveolata Key structural	Fucus serratus Important structural	Littorina littorea Important functional
Introduction of microbial pathogens/parasites	Insufficient information	Insufficient information	Insufficient information
Introduction of non-native species	Insufficient information	Insufficient information	Insufficient information
Extraction of this species	High	High	High
Extraction of other species	High	Not relevant	Not relevant

This review can be cited as follows:

Jackson, A. 2005. Sabellaria alveolata reefs on sand-abraded eulittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 22/05/2013]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=351&code=1997>

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Sabellaria alveolata reefs on sand-abraded eulittoral rock

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LR.MLR.Sab.Salv