Biodiversity & Conservation

Sensitivity

Urticina felina on sand-affected circalittoral rock

CR.MCR.ByH.Urt

Image Keith Hiscock - Urticina felina and Ciocalypta penicillus on sand-covered circalittoral rock (MCR.Urt.Cio). Image width ca 60 cm.
Image copyright information

CR.MCR.ByH.Urt 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	Intermediate	High	Low	Minor decline	Moderate
Increase in suspended sediment	Low	Very high	Very low	No change	Moderate
Decrease in suspended sediment	Low	Very high	Very low	No change	Moderate
Desiccation	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant
Increase in emergence regime	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant
Decrease in emergence regime	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant
Increase in water flow rate	High	Moderate	Moderate	Minor decline	Low
Decrease in water flow rate	Low	Very high	Very low	No change	Low
Increase in temperature	Tolerant*	Not relevant	Not sensitive*	Rise	Moderate
Decrease in temperature	Low	Immediate	Not sensitive	No change	Moderate
Increase in turbidity	Low	Very high	Very low	No change	Moderate
Decrease in turbidity	Tolerant	Not relevant	Not sensitive	No change	Moderate
Increase in wave exposure	Intermediate	High	Low	Minor decline	Low
Decrease in wave exposure	High	High	Moderate	Rise	Low
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	Decline	Moderate

Chemical Factors

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

Biological Factors

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

Species used to indicate biotope intolerance

Physical factors

	Nemertesia ramosa Important characterizing	Alcyonium digitatum Important other	Urticina felina Important characterizing	Pomatoceros triqueter Important other	Balanus crenatus Important other	Pentapora fascialis Important structural	Flustra foliacea Important structural
Substratum Loss	High	High	High	High	High	High	High
Smothering	Intermediate	Intermediate	Low	High	High	Intermediate	Tolerant
Increase in suspended sediment	Intermediate	Low	Low	Low	Low	Intermediate	Tolerant*
Decrease in suspended sediment			Tolerant*	Low			Tolerant
Desiccation	High	Not relevant	Intermediate	Intermediate	High	High	Not relevant
Increase in emergence regime	High	Not relevant	Intermediate	Intermediate	High	High	Not relevant
Decrease in emergence regime			Tolerant*	Tolerant*			Not relevant
Increase in water flow rate	Intermediate	Tolerant*	Tolerant	Tolerant*	Low	Low	Tolerant
Decrease in water flow rate		Intermediate	Intermediate	Tolerant			Intermediate
Increase in temperature	Insufficient information	Low	Intermediate	Tolerant*	High	Intermediate	Tolerant
Decrease in temperature		Low	Intermediate	Intermediate			Tolerant
Increase in turbidity	Tolerant	Low	Tolerant	Tolerant	Low	Tolerant	Tolerant
Decrease in turbidity			Tolerant	Tolerant			Tolerant*
Increase in wave exposure	High	Tolerant	Tolerant	Low	Low	Intermediate	Intermediate
Decrease in wave exposure		Intermediate	Intermediate	Tolerant			Intermediate
Noise	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant
Visual Presence	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant	Tolerant
Abrasion & physical disturbance	Intermediate	Intermediate	Intermediate	Intermediate	Intermediate	High	Intermediate
Displacement	High	High	Low	Low	High	High	High

Chemical factors

	Nemertesia ramosa Important characterizing	Alcyonium digitatum Important other	Urticina felina Important characterizing	Pomatoceros triqueter Important other	Balanus crenatus Important other	Pentapora fascialis Important structural	Flustra foliacea Important structural
Synthetic compound contamination	Insufficient information	Intermediate	Intermediate	Insufficient information	High	Insufficient information	High
Heavy metal contamination	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Intermediate	Insufficient information	Low
Hydrocarbon contamination	Insufficient information	Low	Low	Insufficient information	Low	Insufficient information	Insufficient information
Radionuclide contamination	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information
Changes in nutrient levels	Insufficient information	Low	Insufficient information	Insufficient information	Intermediate	Insufficient information	Insufficient information
Increase in salinity	Insufficient information	Intermediate	Not relevant	Tolerant	Low	High	Not relevant
Decrease in salinity			Low	High			High
Changes in oxygenation	Insufficient information	High	Intermediate	Insufficient information	High	Intermediate	Insufficient information

Biological factors

	Nemertesia ramosa Important characterizing	Alcyonium digitatum Important other	Urticina felina Important characterizing	Pomatoceros triqueter Important other	Balanus crenatus Important other	Pentapora fascialis Important structural	Flustra foliacea Important structural
Introduction of microbial pathogens/parasites	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Low
Introduction of non-native species	Insufficient information	Insufficient information	Insufficient information	Tolerant	Insufficient information	Insufficient information	Insufficient information
Extraction of this species	Not relevant	Not relevant	High	Not relevant	Not relevant	Not relevant	Not relevant
Extraction of other species	Tolerant	Intermediate	Tolerant	Not relevant	Not relevant	Tolerant	High

Species used to indicate biotope recoverability

Physical factors

	Nemertesia ramosa Important characterizing	Alcyonium digitatum Important other	Urticina felina Important characterizing	Pomatoceros triqueter Important other	Balanus crenatus Important other	Pentapora fascialis Important structural	Flustra foliacea Important structural
Substratum Loss	Moderate	High	Moderate	High	High	Moderate	High
Smothering	Very high	High	Very high	High	High	Moderate	Not relevant
Increase in suspended sediment	Immediate	Very high	Very high	High	High	High	Not relevant
Decrease in suspended sediment			Not relevant	High			Not relevant
Desiccation	Moderate	Not relevant	Moderate	High	High	Moderate	Not relevant
Increase in emergence regime	Moderate	Not relevant	Moderate	High	High	Moderate	Not relevant
Decrease in emergence regime			Not relevant	Not relevant			Not relevant
Increase in water flow rate	High	Not relevant	Not relevant	Not relevant	Very high	Very high	High
Decrease in water flow rate		High	Moderate	Not relevant			High
Increase in temperature	Insufficient information	High	High	Not relevant	High	High	Not relevant
Decrease in temperature		High	High	High			Not relevant
Increase in turbidity	Not relevant	Very high	Not relevant	Not relevant	Very high	Not relevant	Not relevant
Decrease in turbidity			Not relevant	Not relevant			Not relevant
Increase in wave exposure	Moderate	Not relevant	Not relevant	High	Very high	High	High
Decrease in wave exposure		High	High	Not relevant			High
Noise	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant
Visual Presence	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant	Not relevant
Abrasion & physical disturbance	High	High	Moderate	High	High	Moderate	High
Displacement	Moderate	High	Immediate	High	High	Moderate	High

Chemical factors

	Nemertesia ramosa Important characterizing	Alcyonium digitatum Important other	Urticina felina Important characterizing	Pomatoceros triqueter Important other	Balanus crenatus Important other	Pentapora fascialis Important structural	Flustra foliacea Important structural
Synthetic compound contamination	Insufficient information	High	Moderate	Not relevant	High	Insufficient information	High
Heavy metal contamination	Insufficient information	Insufficient information	Insufficient information	Not relevant	High	Insufficient information	Very high
Hydrocarbon contamination	Insufficient information	High	Very high	Not relevant	High	Insufficient information	Not relevant
Radionuclide contamination	Insufficient information	Insufficient information	Insufficient information	Not relevant	Not relevant	Insufficient information	Not relevant
Changes in nutrient levels	Insufficient information	High	Insufficient information	Not relevant	High	Insufficient information	Not relevant
Increase in salinity	Insufficient information	High	Not relevant	Not relevant	Very high	Moderate	Not relevant
Decrease in salinity			Very high	High			High
Changes in oxygenation	Insufficient information	High	High	Not relevant	High	High	Not relevant

Biological factors

	Nemertesia ramosa Important characterizing	Alcyonium digitatum Important other	Urticina felina Important characterizing	Pomatoceros triqueter Important other	Balanus crenatus Important other	Pentapora fascialis Important structural	Flustra foliacea Important structural
Introduction of microbial pathogens/parasites	Insufficient information	Insufficient information	Insufficient information	Not relevant	Not relevant	Insufficient information	Immediate
Introduction of non-native species	Insufficient information	Insufficient information	Insufficient information	Not relevant	Not relevant	Insufficient information	Not relevant
Extraction of this species	Not relevant	Not relevant	Moderate	Not relevant	Not relevant	Not relevant	Not relevant
Extraction of other species	Not relevant	High	Not relevant	Not relevant	Not relevant	Not relevant	High

This review can be cited as follows:

Hiscock, K. 2002. Urticina felina on sand-affected circalittoral 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=290&code=1997>

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Urticina felina on sand-affected circalittoral rock

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CR.MCR.ByH.Urt