Biodiversity & Conservation

Hediste diversicolor and Macoma balthica in sandy mud shores

LS.LMu.MEst.HedMac


LMU.HedMac

Image Roger Covey - Upper shore mud with Hediste holes and tracks. Image with ca XX cm.
Image copyright information

Distribution map

LS.LMu.MEst.HedMac 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 High Moderate Major decline High
Smothering Low Very high Very low Minor decline Moderate
Increase in suspended sediment Tolerant* Not relevant Not sensitive* Minor decline Low
Decrease in suspended sediment Low Very high Very low No change Low
Desiccation Low Very high Very low No change Low
Increase in emergence regime Low Very high Very low No change Low
Decrease in emergence regime Tolerant Not relevant Not sensitive No change Low
Increase in water flow rate Intermediate High Low Decline Moderate
Decrease in water flow rate Tolerant Not relevant Not sensitive No change High
Increase in temperature Low Very high Very low Minor decline Very low
Decrease in temperature Tolerant Not relevant Not sensitive Minor decline Moderate
Increase in turbidity Low Very high Very low Minor decline Low
Decrease in turbidity Tolerant Not relevant Not sensitive No change Low
Increase in wave exposure Intermediate High Low Decline Low
Decrease in wave exposure Tolerant Not relevant Not sensitive No change High
Noise Tolerant Not relevant Not sensitive No change Low
Visual Presence Tolerant Not relevant Not sensitive No change Low
Abrasion & physical disturbance Intermediate High Low No change Low
Displacement Intermediate High Low No change Moderate

Chemical Factors

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

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 Insufficient Information Not relevant
Extraction of this species Intermediate High Low Minor decline Very low
Extraction of other species Not relevant Not relevant Not relevant Not relevant Not relevant

Species used to indicate biotope intolerance

Physical factors

Hediste diversicolor
Important characterizing
Macoma balthica
Important characterizing
Aphelochaeta marioni
Important other
Cerastoderma edule
Important other
Substratum LossHighHighHighHigh
SmotheringLowTolerantLowIntermediate
Increase in suspended sedimentTolerant*Tolerant*Tolerant*Low
Decrease in suspended sedimentLowLow
DesiccationLowTolerantNot relevantIntermediate
Increase in emergence regimeLowLowIntermediateIntermediate
Decrease in emergence regimeTolerantTolerant
Increase in water flow rateIntermediateIntermediateIntermediateIntermediate
Decrease in water flow rateTolerantTolerant*
Increase in temperatureIntermediateLowLowIntermediate
Decrease in temperatureTolerantLow
Increase in turbidityTolerantLowLowTolerant
Decrease in turbidityTolerantTolerant
Increase in wave exposureIntermediateIntermediateHighIntermediate
Decrease in wave exposureTolerantTolerant
NoiseTolerant*TolerantTolerantTolerant
Visual PresenceTolerantTolerantLowTolerant
Abrasion & physical disturbanceIntermediateIntermediateIntermediateIntermediate
DisplacementIntermediateIntermediateTolerantLow

Chemical factors

Hediste diversicolor
Important characterizing
Macoma balthica
Important characterizing
Aphelochaeta marioni
Important other
Cerastoderma edule
Important other
Synthetic compound contaminationHighHighHighIntermediate
Heavy metal contaminationIntermediateHighLowIntermediate
Hydrocarbon contaminationIntermediateHighTolerant*Intermediate
Radionuclide contaminationInsufficient informationInsufficient informationInsufficient informationInsufficient information
Changes in nutrient levelsTolerant*Tolerant*IntermediateIntermediate
Increase in salinityLowLowTolerantLow
Decrease in salinityLowTolerant
Changes in oxygenationIntermediateLowLowHigh

Biological factors

Hediste diversicolor
Important characterizing
Macoma balthica
Important characterizing
Aphelochaeta marioni
Important other
Cerastoderma edule
Important other
Introduction of microbial pathogens/parasitesInsufficient informationIntermediateLowIntermediate
Introduction of non-native speciesInsufficient informationInsufficient informationInsufficient informationInsufficient information
Extraction of this speciesIntermediateNot relevantNot relevantIntermediate
Extraction of other speciesIntermediateIntermediateIntermediateHigh

Species used to indicate biotope recoverability

Physical factors

Hediste diversicolor
Important characterizing
Macoma balthica
Important characterizing
Aphelochaeta marioni
Important other
Cerastoderma edule
Important other
Substratum LossHighHighHighHigh
SmotheringImmediateNot relevantImmediateHigh
Increase in suspended sedimentNot relevantNot relevantNot relevantImmediate
Decrease in suspended sedimentVery highImmediate
DesiccationHighNot relevantNot relevantHigh
Increase in emergence regimeHighVery highHighHigh
Decrease in emergence regimeNot relevantNot relevant
Increase in water flow rateHighHighHighHigh
Decrease in water flow rateNot relevantNot relevant
Increase in temperatureHighVery highVery highHigh
Decrease in temperatureNot relevantVery high
Increase in turbidityImmediateVery highVery highNot relevant
Decrease in turbidityNot relevantNot relevant
Increase in wave exposureHighHighHighHigh
Decrease in wave exposureNot relevantNot relevant
NoiseNot relevantNot relevantNot relevantNot relevant
Visual PresenceNot relevantNot relevantImmediateNot relevant
Abrasion & physical disturbanceHighHighHighHigh
DisplacementImmediateHighNot relevantHigh

Chemical factors

Hediste diversicolor
Important characterizing
Macoma balthica
Important characterizing
Aphelochaeta marioni
Important other
Cerastoderma edule
Important other
Synthetic compound contaminationModerateHighHighHigh
Heavy metal contaminationModerateHighVery highHigh
Hydrocarbon contaminationHighHighNot relevantHigh
Radionuclide contaminationInsufficient informationNot relevantNot relevantInsufficient information
Changes in nutrient levelsHighNot relevantHighHigh
Increase in salinityHighVery highNot relevantVery high
Decrease in salinityVery highNot relevant
Changes in oxygenationHighVery highVery highHigh

Biological factors

Hediste diversicolor
Important characterizing
Macoma balthica
Important characterizing
Aphelochaeta marioni
Important other
Cerastoderma edule
Important other
Introduction of microbial pathogens/parasitesInsufficient informationHighVery highHigh
Introduction of non-native speciesInsufficient informationNot relevantNot relevantInsufficient information
Extraction of this speciesHighNot relevantNot relevantHigh
Extraction of other speciesHighHighHighHigh

This review can be cited as follows:

Rayment, W.J. 2001. Hediste diversicolor and Macoma balthica in sandy mud shores. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 29/07/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=209&code=2004>