Biodiversity & Conservation

Brissopsis lyrifera and Amphiura chiajei in circalittoral mud

SS.SMu.CFiMu.BlyrAchi


<i>%Brissopsis lyrifera%</i> and <i>%Amphiura chiajei%</i> in circalittoral mud
Distribution map

SS.SMu.CFiMu.BlyrAchi recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • EC_Habitats
  • UK_BAP

Habitat sensitivity

Physical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Substratum Loss High Moderate Moderate Major decline High
Smothering Low Immediate Not sensitive No change Moderate
Increase in suspended sediment Tolerant* Not relevant Not sensitive* Rise Moderate
Decrease in suspended sediment Low Immediate Not sensitive 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 Intermediate Moderate Moderate Minor decline Moderate
Decrease in water flow rate Tolerant* Not relevant Not sensitive* Rise Moderate
Increase in temperature Intermediate High Low Minor decline Moderate
Decrease in temperature Intermediate High Low Minor decline Low
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 High Very low / none Very High Major decline Moderate
Decrease in wave exposure Tolerant Not relevant Not sensitive No change Moderate
Noise Tolerant Not relevant Not sensitive No change Low
Visual Presence Tolerant Not relevant Not sensitive No change Very low
Abrasion & physical disturbance Intermediate High Low Decline High
Displacement Low Immediate Not sensitive No change Low

Chemical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Synthetic compound contamination High Moderate Moderate Decline High
Heavy metal contamination Intermediate Moderate Moderate Decline Moderate
Hydrocarbon contamination High Moderate Moderate Decline High
Radionuclide contamination Insufficient information Not relevant Insufficient information Not relevant Not relevant
Changes in nutrient levels Tolerant* Not relevant Not sensitive* Rise Moderate
Increase in salinity Not relevant Not relevant Not relevant Not relevant Very low
Decrease in salinity High Moderate Moderate Decline Moderate
Changes in oxygenation High Moderate Moderate Decline High

Biological Factors

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

Species used to indicate biotope intolerance

Physical factors

Brissopsis lyrifera
Key functional
Amphiura chiajei
Important characterizing
Nephrops norvegicus
Important other
Substratum LossHighHighHigh
SmotheringLowLowTolerant
Increase in suspended sedimentTolerant*Tolerant*Tolerant
Decrease in suspended sedimentLowLowTolerant
DesiccationNot relevantIntermediateNot relevant
Increase in emergence regimeNot relevantNot relevantNot relevant
Decrease in emergence regimeNot relevantNot relevantNot relevant
Increase in water flow rateIntermediateHighIntermediate
Decrease in water flow rateTolerantTolerantTolerant
Increase in temperatureIntermediateLowLow
Decrease in temperatureIntermediateIntermediateLow
Increase in turbidityTolerant*Not relevantTolerant*
Decrease in turbidityLowNot relevantLow
Increase in wave exposureLowIntermediateNot relevant
Decrease in wave exposureNot relevantNot relevantNot relevant
NoiseInsufficient informationInsufficient informationInsufficient information
Visual PresenceInsufficient informationTolerantLow
Abrasion & physical disturbanceIntermediateLowIntermediate
DisplacementLowLowLow

Chemical factors

Brissopsis lyrifera
Key functional
Amphiura chiajei
Important characterizing
Nephrops norvegicus
Important other
Synthetic compound contaminationHighInsufficient informationInsufficient information
Heavy metal contaminationInsufficient informationInsufficient informationIntermediate
Hydrocarbon contaminationIntermediateHighInsufficient information
Radionuclide contaminationInsufficient informationInsufficient informationInsufficient information
Changes in nutrient levelsTolerant*TolerantTolerant
Increase in salinityNot relevantNot relevantNot relevant
Decrease in salinityLowHighIntermediate
Changes in oxygenationHighLowHigh

Biological factors

Brissopsis lyrifera
Key functional
Amphiura chiajei
Important characterizing
Nephrops norvegicus
Important other
Introduction of microbial pathogens/parasitesInsufficient informationInsufficient informationIntermediate
Introduction of non-native speciesInsufficient informationNot relevantInsufficient information
Extraction of this speciesNot relevantNot relevantIntermediate
Extraction of other speciesIntermediateLowIntermediate

Species used to indicate biotope recoverability

Physical factors

Brissopsis lyrifera
Key functional
Amphiura chiajei
Important characterizing
Nephrops norvegicus
Important other
Substratum LossHighModerateModerate
SmotheringImmediateImmediateNot relevant
Increase in suspended sedimentNot relevantNot relevantNot relevant
Decrease in suspended sedimentVery highVery highNot relevant
DesiccationNot relevantHighNot relevant
Increase in emergence regimeNot relevantNot relevantNot relevant
Decrease in emergence regimeNot relevantNot relevantNot relevant
Increase in water flow rateHighModerateHigh
Decrease in water flow rateNot relevantNot relevantNot relevant
Increase in temperatureHighModerateVery high
Decrease in temperatureHighModerateVery high
Increase in turbidityNot relevantNot relevantNot relevant
Decrease in turbidityVery highNot relevantImmediate
Increase in wave exposureHighModerateNot relevant
Decrease in wave exposureNot relevantNot relevantNot relevant
NoiseNot relevantNot relevantInsufficient information
Visual PresenceNot relevantNot relevantVery high
Abrasion & physical disturbanceHighVery highHigh
DisplacementImmediateImmediateVery high

Chemical factors

Brissopsis lyrifera
Key functional
Amphiura chiajei
Important characterizing
Nephrops norvegicus
Important other
Synthetic compound contaminationHighNot relevantInsufficient information
Heavy metal contaminationInsufficient informationNot relevantHigh
Hydrocarbon contaminationHighModerateInsufficient information
Radionuclide contaminationNot relevantInsufficient informationInsufficient information
Changes in nutrient levelsNot relevantNot relevantNot relevant
Increase in salinityNot relevantNot relevantNot relevant
Decrease in salinityHighModerateHigh
Changes in oxygenationModerateVery highModerate

Biological factors

Brissopsis lyrifera
Key functional
Amphiura chiajei
Important characterizing
Nephrops norvegicus
Important other
Introduction of microbial pathogens/parasitesNot relevantNot relevantHigh
Introduction of non-native speciesNot relevantNot relevantInsufficient information
Extraction of this speciesNot relevantNot relevantHigh
Extraction of other speciesHighHighHigh

This review can be cited as follows:

Budd, G.C. 2004. Brissopsis lyrifera and Amphiura chiajei in circalittoral mud. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 23/10/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=139&code=2004>