Biodiversity & Conservation

Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock

IR.SIR.Lag.PolFur


SIR.PolFur

Image Anon. - A turf of Polyides rotundus, Furcellaria lumbricalis and filamentous brown algae. Image width ca 1m.
Image copyright information

Distribution map

IR.SIR.Lag.PolFur recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • EC_Habitats

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 High Moderate Moderate Decline Low
Increase in suspended sediment Intermediate High Low No change Low
Decrease in suspended sediment Low Very high Very low No change Low
Desiccation High Moderate Moderate Major decline High
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 Intermediate High Low Minor decline Very low
Decrease in water flow rate Tolerant Not relevant Not sensitive No change High
Increase in temperature Low Very high Very low No change Moderate
Decrease in temperature Intermediate High Low Minor decline Low
Increase in turbidity Tolerant Not relevant Not sensitive Minor decline Moderate
Decrease in turbidity Intermediate High Low No change Very low
Increase in wave exposure Intermediate High Low No change Low
Decrease in wave exposure Tolerant Not relevant Not sensitive No change High
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 No change Low
Displacement High High Moderate Minor decline Low

Chemical Factors

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

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 Not relevant Not relevant
Introduction of non-native species Insufficient information Not relevant Insufficient information Insufficient Information Not relevant
Extraction of this species Intermediate High Low Minor decline Low
Extraction of other species Not relevant Not relevant Not relevant Not relevant Not relevant

Species used to indicate biotope intolerance

Physical factors

Furcellaria lumbricalis
Important characterizing
Clavelina lepadiformis
Important other
Ciona intestinalis
Important other
Substratum LossHighHighHigh
SmotheringIntermediateHighIntermediate
Increase in suspended sedimentIntermediateIntermediateLow
Decrease in suspended sedimentTolerant
DesiccationHighHighIntermediate
Increase in emergence regimeIntermediateHighHigh
Decrease in emergence regimeTolerant
Increase in water flow rateIntermediateLowLow
Decrease in water flow rateTolerant
Increase in temperatureLowIntermediateIntermediate
Decrease in temperatureTolerant
Increase in turbidityTolerantTolerantTolerant
Decrease in turbidityTolerant
Increase in wave exposureIntermediateIntermediateIntermediate
Decrease in wave exposureTolerant
NoiseTolerantTolerantTolerant
Visual PresenceTolerantTolerantTolerant
Abrasion & physical disturbanceIntermediateHighHigh
DisplacementLowHighHigh

Chemical factors

Furcellaria lumbricalis
Important characterizing
Clavelina lepadiformis
Important other
Ciona intestinalis
Important other
Synthetic compound contaminationHighInsufficient informationInsufficient information
Heavy metal contaminationInsufficient informationTolerantInsufficient information
Hydrocarbon contaminationHighInsufficient informationInsufficient information
Radionuclide contaminationInsufficient informationInsufficient informationInsufficient information
Changes in nutrient levelsIntermediateInsufficient informationTolerant*
Increase in salinityLowLowLow
Decrease in salinityTolerant
Changes in oxygenationInsufficient informationLowLow

Biological factors

Furcellaria lumbricalis
Important characterizing
Clavelina lepadiformis
Important other
Ciona intestinalis
Important other
Introduction of microbial pathogens/parasitesInsufficient informationInsufficient informationInsufficient information
Introduction of non-native speciesInsufficient informationTolerantIntermediate
Extraction of this speciesHighNot relevantNot relevant
Extraction of other speciesIntermediateTolerantTolerant

Species used to indicate biotope recoverability

Physical factors

Furcellaria lumbricalis
Important characterizing
Clavelina lepadiformis
Important other
Ciona intestinalis
Important other
Substratum LossModerateModerateHigh
SmotheringModerateModerateVery high
Increase in suspended sedimentModerateHighImmediate
Decrease in suspended sedimentNot relevant
DesiccationModerateModerateVery high
Increase in emergence regimeModerateModerateHigh
Decrease in emergence regimeNot relevant
Increase in water flow rateModerateVery highImmediate
Decrease in water flow rateNot relevant
Increase in temperatureVery highHighVery high
Decrease in temperatureNot relevant
Increase in turbidityNot relevantNot relevantNot relevant
Decrease in turbidityNot relevant
Increase in wave exposureModerateHighVery high
Decrease in wave exposureNot relevant
NoiseNot relevantNot relevantNot relevant
Visual PresenceNot relevantNot relevantNot relevant
Abrasion & physical disturbanceModerateModerateHigh
DisplacementVery highModerateHigh

Chemical factors

Furcellaria lumbricalis
Important characterizing
Clavelina lepadiformis
Important other
Ciona intestinalis
Important other
Synthetic compound contaminationModerateNot relevantInsufficient information
Heavy metal contaminationNot relevantNot relevantInsufficient information
Hydrocarbon contaminationModerateNot relevantInsufficient information
Radionuclide contaminationNot relevantNot relevantInsufficient information
Changes in nutrient levelsModerateNot relevantNot relevant
Increase in salinityVery highImmediateImmediate
Decrease in salinityNot relevant
Changes in oxygenationNot relevantImmediateImmediate

Biological factors

Furcellaria lumbricalis
Important characterizing
Clavelina lepadiformis
Important other
Ciona intestinalis
Important other
Introduction of microbial pathogens/parasitesNot relevantNot relevantInsufficient information
Introduction of non-native speciesNot relevantNot relevantVery high
Extraction of this speciesModerateNot relevantNot relevant
Extraction of other speciesModerateNot relevantNot relevant

This review can be cited as follows:

Rayment, W.J. 2001. Polyides rotundus and/or Furcellaria lumbricalis on reduced salinity infralittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 01/11/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=316&code=1997>