Biodiversity & Conservation

Sensitivity

Importance

Sabellaria spinulosa with kelp and red seaweeds on sand-influenced infralittoral rock

IR.MIR.SedK.SabKR

<i>%Sabellaria spinulosa%</i> with kelp and red seaweeds on sand-influenced infralittoral rock

IR.MIR.SedK.SabKR 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	Moderate
Smothering	Low	Very high	Very low	Decline	Low
Increase in suspended sediment	Low	Immediate	Not sensitive	Minor decline	Moderate
Decrease in suspended sediment	Low	Very high	Very low	Minor decline	Moderate
Desiccation	Intermediate	High	Low	Decline	Low
Increase in emergence regime	Intermediate	High	Low	No change	Low
Decrease in emergence regime	Tolerant	Not relevant	Not sensitive	No change	High
Increase in water flow rate	Tolerant	Not relevant	Not sensitive	Rise	Moderate
Decrease in water flow rate	Intermediate	High	Low	Decline	Moderate
Increase in temperature	Intermediate	High	Low	Minor decline	Moderate
Decrease in temperature	Low	Very high	Very low	No change	Low
Increase in turbidity	Low	High	Low	No change	Moderate
Decrease in turbidity	Tolerant*	Very high	Not sensitive*	No change	Moderate
Increase in wave exposure	Intermediate	High	Low	Minor decline	Low
Decrease in wave exposure	Intermediate	High	Low	Minor decline	Low
Noise	Tolerant	Not relevant	Not sensitive	Not relevant	Moderate
Visual Presence	Tolerant	Not relevant	Not sensitive	Not relevant	Moderate
Abrasion & physical disturbance	Intermediate	High	Low	Minor decline	Moderate
Displacement	High	Moderate	Moderate	Decline	Low

Chemical Factors

Click factor name to view rationale	Intolerance	Recoverability	Sensitivity	Species Richness	Evidence / Confidence
Synthetic compound contamination	Low	Very high	Very low	Decline	Moderate
Heavy metal contamination	Low	High	Low	Decline	Moderate
Hydrocarbon contamination	Insufficient information	Insufficient information	Insufficient information	Insufficient Information	Not relevant
Radionuclide contamination	Insufficient information	Insufficient information	Insufficient information	Not relevant	Not relevant
Changes in nutrient levels	Low	High	Low	Minor decline	Moderate
Increase in salinity	High	Moderate	Moderate	Decline	Very low
Decrease in salinity	Low	High	Low	Decline	Low
Changes in oxygenation	Low	Very high	Very low	Decline	Very low

Biological Factors

Click factor name to view rationale	Intolerance	Recoverability	Sensitivity	Species Richness	Evidence / Confidence
Introduction of microbial pathogens/parasites	Low	High	Low		Low
Introduction of non-native species	Tolerant	Not relevant	Not sensitive	No change	Moderate
Extraction of this species	High	Moderate	Moderate	Decline	Low
Extraction of other species	Low	High	Low	No change	Moderate

Species used to indicate biotope intolerance

Physical factors

	Sabellaria spinulosa Key structural	Laminaria hyperborea Important characterizing	Delesseria sanguinea Important characterizing	Lithophyllum incrustans Important characterizing	Urticina felina Important characterizing
Substratum Loss	High	High	High	High	High
Smothering	Low	Low	Intermediate	Low	Low
Increase in suspended sediment	Low	Low	Low	Low	Low
Decrease in suspended sediment	Intermediate			Tolerant*	Tolerant*
Desiccation	Tolerant	High	High	High	Intermediate
Increase in emergence regime	Intermediate	High	Intermediate	High	Intermediate
Decrease in emergence regime	Tolerant*			Tolerant	Tolerant*
Increase in water flow rate	Intermediate	High	Intermediate	Low	Tolerant
Decrease in water flow rate	Intermediate			Low	Intermediate
Increase in temperature	Low	High	Low	Tolerant	Intermediate
Decrease in temperature	Tolerant			Tolerant	Intermediate
Increase in turbidity	Tolerant	Intermediate	Tolerant	Low	Tolerant
Decrease in turbidity	Intermediate			Tolerant*	Tolerant
Increase in wave exposure	Intermediate	High	Tolerant	Tolerant	Tolerant
Decrease in wave exposure	Intermediate			Low	Intermediate
Noise	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant
Visual Presence	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant
Abrasion & physical disturbance	Intermediate	Intermediate	Intermediate	Intermediate	Intermediate
Displacement	High	High	High	Low	Low

Chemical factors

	Sabellaria spinulosa Key structural	Laminaria hyperborea Important characterizing	Delesseria sanguinea Important characterizing	Lithophyllum incrustans Important characterizing	Urticina felina Important characterizing
Synthetic compound contamination	Tolerant*	Low	High	High	Intermediate
Heavy metal contamination	Insufficient information	Intermediate	Low	Insufficient information	Insufficient information
Hydrocarbon contamination	Insufficient information	Low	High	High	Low
Radionuclide contamination	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information
Changes in nutrient levels	Insufficient information	Intermediate	Low	Low	Insufficient information
Increase in salinity	Insufficient information	Intermediate	Low	Insufficient information	Not relevant
Decrease in salinity	Intermediate			Intermediate	Low
Changes in oxygenation	Intermediate	Insufficient information	High	Insufficient information	Intermediate

Biological factors

	Sabellaria spinulosa Key structural	Laminaria hyperborea Important characterizing	Delesseria sanguinea Important characterizing	Lithophyllum incrustans Important characterizing	Urticina felina Important characterizing
Introduction of microbial pathogens/parasites	Insufficient information	Low	Insufficient information	Insufficient information	Insufficient information
Introduction of non-native species	Insufficient information	Insufficient information	Not relevant	Insufficient information	Insufficient information
Extraction of this species	Not relevant	Intermediate	Not relevant	Not relevant	High
Extraction of other species	Intermediate	Intermediate	Tolerant*	Intermediate	Tolerant

Species used to indicate biotope recoverability

Physical factors

	Sabellaria spinulosa Key structural	Laminaria hyperborea Important characterizing	Delesseria sanguinea Important characterizing	Lithophyllum incrustans Important characterizing	Urticina felina Important characterizing
Substratum Loss	High	Moderate	High	Low	Moderate
Smothering	Immediate	Immediate	High	Very high	Very high
Increase in suspended sediment	Immediate	Immediate	Immediate	Very high	Very high
Decrease in suspended sediment	High			Not relevant	Not relevant
Desiccation	Not relevant	Moderate	High	Low	Moderate
Increase in emergence regime	High	Moderate	High	Low	Moderate
Decrease in emergence regime	Not relevant			Not relevant	Not relevant
Increase in water flow rate	High	Moderate	High	Very high	Not relevant
Decrease in water flow rate	High			Very high	Moderate
Increase in temperature	High	Moderate	Immediate	Not relevant	High
Decrease in temperature	Not relevant			Not relevant	High
Increase in turbidity	Not relevant	Moderate	Not relevant	Very high	Not relevant
Decrease in turbidity	High			Not relevant	Not relevant
Increase in wave exposure	High	Moderate	Not relevant	Not relevant	Not relevant
Decrease in wave exposure	High			Immediate	High
Noise	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant
Visual Presence	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant
Abrasion & physical disturbance	High	Moderate	High	High	Moderate
Displacement	High	Moderate	High	Very high	Immediate

Chemical factors

	Sabellaria spinulosa Key structural	Laminaria hyperborea Important characterizing	Delesseria sanguinea Important characterizing	Lithophyllum incrustans Important characterizing	Urticina felina Important characterizing
Synthetic compound contamination	Not relevant	Immediate	High	Low	Moderate
Heavy metal contamination	Insufficient information	Immediate	Very high	Not relevant	Insufficient information
Hydrocarbon contamination	Insufficient information	Immediate	High	High	Very high
Radionuclide contamination	Insufficient information	Insufficient information	Not relevant	Not relevant	Insufficient information
Changes in nutrient levels	Insufficient information	Moderate	Immediate	High	Insufficient information
Increase in salinity	Not relevant	Moderate	Immediate	Not relevant	Not relevant
Decrease in salinity	High			High	Very high
Changes in oxygenation	High	Not relevant	High	Not relevant	High

Biological factors

	Sabellaria spinulosa Key structural	Laminaria hyperborea Important characterizing	Delesseria sanguinea Important characterizing	Lithophyllum incrustans Important characterizing	Urticina felina Important characterizing
Introduction of microbial pathogens/parasites	Insufficient information	Immediate	Insufficient information	Not relevant	Insufficient information
Introduction of non-native species	Insufficient information	Not relevant	Not relevant	Not relevant	Insufficient information
Extraction of this species	Not relevant	Moderate	Not relevant	Not relevant	Moderate
Extraction of other species	High	Moderate	Not relevant	High	Not relevant

This review can be cited as follows:

Hill, J.M. 2001. Sabellaria spinulosa with kelp and red seaweeds on sand-influenced infralittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 24/05/2013]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=144&code=1997>

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Sabellaria spinulosa with kelp and red seaweeds on sand-influenced infralittoral rock

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IR.MIR.SedK.SabKR