Biodiversity & Conservation

Mytilus edulis and barnacles on very exposed eulittoral rock

LR.ELR.MB.MytB


ELR.MytB

Image Anon. - Close view of Mytilus and dense barnacles covering rock surface. Image width ca XX cm.
Image copyright information

Distribution map

LR.ELR.MB.MytB 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 Major decline Low
Increase in suspended sediment Low Very high Very low Minor decline Low
Decrease in suspended sediment Low Very high Very low No change Low
Desiccation Intermediate High Low Minor decline Low
Increase in emergence regime Intermediate High Low Minor decline Low
Decrease in emergence regime Low Very high Very low Minor decline Low
Increase in water flow rate Tolerant Not relevant Not sensitive No change Low
Decrease in water flow rate Tolerant Not relevant Not sensitive No change Low
Increase in temperature Low Very high Very low Minor decline Low
Decrease in temperature Low Very high Very low Minor decline Low
Increase in turbidity Low Very high Very low No change Low
Decrease in turbidity Low Very high Very low No change Low
Increase in wave exposure Tolerant Not relevant Not sensitive No change Moderate
Decrease in wave exposure High Moderate Moderate Major decline Moderate
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 Low

Chemical Factors

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

Biological Factors

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

Species used to indicate biotope intolerance

Physical factors

Mytilus edulis
Key structural
Semibalanus balanoides
Key structural
Patella vulgata
Key functional
Nucella lapillus
Important functional
Palmaria palmata
Important other
Corallina officinalis
Important other
Substratum LossHighHighHighHighHighHigh
SmotheringIntermediateIntermediateHighLowIntermediateIntermediate
Increase in suspended sedimentLowLowLowLowLowIntermediate
Decrease in suspended sedimentLowLowTolerant
DesiccationLowIntermediateLowIntermediateIntermediateHigh
Increase in emergence regimeLowHighLowIntermediateIntermediateIntermediate
Decrease in emergence regimeLowTolerant
Increase in water flow rateLowLowLowLowIntermediateLow
Decrease in water flow rateLowTolerant
Increase in temperatureLowIntermediateLowIntermediateIntermediateIntermediate
Decrease in temperatureLowLow
Increase in turbidityTolerantLowLowTolerantLowLow
Decrease in turbidityTolerantTolerant
Increase in wave exposureIntermediateLowLowIntermediateIntermediateLow
Decrease in wave exposureIntermediateIntermediate
NoiseTolerant*TolerantLowTolerantNot relevantTolerant
Visual PresenceTolerant*TolerantTolerantTolerantNot relevantTolerant
Abrasion & physical disturbanceIntermediateIntermediateLowLowIntermediateLow
DisplacementIntermediateHighIntermediateIntermediateHighLow

Chemical factors

Mytilus edulis
Key structural
Semibalanus balanoides
Key structural
Patella vulgata
Key functional
Nucella lapillus
Important functional
Palmaria palmata
Important other
Corallina officinalis
Important other
Synthetic compound contaminationIntermediateIntermediateHighHighHighIntermediate
Heavy metal contaminationIntermediateLowIntermediateLowIntermediateInsufficient information
Hydrocarbon contaminationIntermediateIntermediateHighIntermediateHighLow
Radionuclide contaminationInsufficient informationInsufficient informationInsufficient informationInsufficient informationInsufficient informationInsufficient information
Changes in nutrient levelsIntermediateIntermediateLowHighIntermediateLow
Increase in salinityLowLowLowLowIntermediateIntermediate
Decrease in salinityLowIntermediate
Changes in oxygenationLowIntermediateIntermediateIntermediateLowInsufficient information

Biological factors

Mytilus edulis
Key structural
Semibalanus balanoides
Key structural
Patella vulgata
Key functional
Nucella lapillus
Important functional
Palmaria palmata
Important other
Corallina officinalis
Important other
Introduction of microbial pathogens/parasitesIntermediateIntermediateInsufficient informationIntermediateInsufficient informationLow
Introduction of non-native speciesInsufficient informationIntermediateNot relevantInsufficient informationNot relevantNot relevant
Extraction of this speciesIntermediateNot relevantIntermediateNot relevantIntermediateIntermediate
Extraction of other speciesLowIntermediateLowLowIntermediateIntermediate

Species used to indicate biotope recoverability

Physical factors

Mytilus edulis
Key structural
Semibalanus balanoides
Key structural
Patella vulgata
Key functional
Nucella lapillus
Important functional
Palmaria palmata
Important other
Corallina officinalis
Important other
Substratum LossHighHighHighLowHighHigh
SmotheringHighHighHighImmediateHighVery high
Increase in suspended sedimentImmediateVery highHighImmediateHighVery high
Decrease in suspended sedimentImmediateHighNot relevant
DesiccationImmediateHighHighHighHighHigh
Increase in emergence regimeVery highHighHighHighHighVery high
Decrease in emergence regimeVery highNot relevant
Increase in water flow rateVery highVery highHighVery highHighVery high
Decrease in water flow rateVery highNot relevant
Increase in temperatureVery highHighHighHighHighHigh
Decrease in temperatureVery highVery high
Increase in turbidityNot relevantVery highVery highNot relevantVery highImmediate
Decrease in turbidityNot relevantNot relevant
Increase in wave exposureHighHighHighHighHighVery high
Decrease in wave exposureHighHigh
NoiseNot relevantNot relevantHighNot relevantNot relevantNot relevant
Visual PresenceNot relevantNot relevantNot relevantNot relevantNot relevantNot relevant
Abrasion & physical disturbanceHighHighVery highImmediateHighHigh
DisplacementHighHighHighHighHighHigh

Chemical factors

Mytilus edulis
Key structural
Semibalanus balanoides
Key structural
Patella vulgata
Key functional
Nucella lapillus
Important functional
Palmaria palmata
Important other
Corallina officinalis
Important other
Synthetic compound contaminationHighModerateHighLowHighHigh
Heavy metal contaminationHighHighHighVery highHighInsufficient information
Hydrocarbon contaminationHighModerateHighHighHighVery high
Radionuclide contaminationNot relevantNot relevantInsufficient informationInsufficient informationInsufficient informationInsufficient information
Changes in nutrient levelsHighHighHighLowHighVery high
Increase in salinityVery highHighHighVery highHighHigh
Decrease in salinityVery highHigh
Changes in oxygenationVery highHighHighHighImmediateInsufficient information

Biological factors

Mytilus edulis
Key structural
Semibalanus balanoides
Key structural
Patella vulgata
Key functional
Nucella lapillus
Important functional
Palmaria palmata
Important other
Corallina officinalis
Important other
Introduction of microbial pathogens/parasitesHighHighInsufficient informationHighNot relevantVery high
Introduction of non-native speciesNot relevantHighNot relevantNot relevantNot relevantNot relevant
Extraction of this speciesHighNot relevantHighNot relevantHighHigh
Extraction of other speciesVery highHighHighVery highHighHigh

This review can be cited as follows:

Tyler-Walters, H. 2002. Mytilus edulis and barnacles on very exposed eulittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 30/07/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=203&code=1997>