Biodiversity & Conservation

Ceramium sp. and piddocks on eulittoral fossilized peat

LR.HLR.FR.RPid


MLR.Rpid

Image Rohan Holt - Piddock bored rock with red algae. Image width ca 1 m (foreground).
Image copyright information

Distribution map

LR.HLR.FR.RPid 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 None Very High Major decline High
Smothering Intermediate Very high Low Decline Moderate
Increase in suspended sediment Tolerant* Not relevant Not sensitive* No change Low
Decrease in suspended sediment Low Immediate Not sensitive No change Low
Desiccation Intermediate Very high Low Decline Moderate
Increase in emergence regime Low Very high Very low Minor decline Low
Decrease in emergence regime Tolerant Not relevant Not sensitive No change Low
Increase in water flow rate Intermediate Very high Low Decline Moderate
Decrease in water flow rate Low High Low No change Low
Increase in temperature Tolerant Not relevant Not sensitive Not relevant Low
Decrease in temperature High Moderate Moderate Major decline Moderate
Increase in turbidity Tolerant Not relevant Not sensitive No change Moderate
Decrease in turbidity Tolerant Not relevant Not sensitive No change Moderate
Increase in wave exposure Intermediate Very high Low Decline Moderate
Decrease in wave exposure Tolerant Not relevant Not sensitive No change Low
Noise Tolerant Not relevant Not sensitive Not relevant Low
Visual Presence Tolerant Not relevant Not sensitive Not relevant Low
Abrasion & physical disturbance Intermediate Very high Low Decline Moderate
Displacement High High Moderate Major decline Moderate

Chemical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Synthetic compound contamination High High Moderate Major decline Low
Heavy metal contamination Insufficient information Not relevant Insufficient information Not relevant Not relevant
Hydrocarbon contamination High Moderate Moderate Major decline Moderate
Radionuclide contamination Insufficient information Not relevant Insufficient information Not relevant Not relevant
Changes in nutrient levels Tolerant* Not relevant Not sensitive* No change 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 Insufficient information Not relevant Insufficient information Not relevant Not relevant

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 Tolerant Not relevant Not sensitive Not relevant Low
Extraction of this species Intermediate Moderate Moderate 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

Ceramium virgatum
Important structural
Ulva intestinalis
Important structural
Substratum LossHighHigh
SmotheringIntermediateHigh
Increase in suspended sedimentIntermediateIntermediate
Decrease in suspended sedimentTolerant*Tolerant
DesiccationHighLow
Increase in emergence regimeIntermediateTolerant*
Decrease in emergence regimeTolerantLow
Increase in water flow rateIntermediateIntermediate
Decrease in water flow rateTolerantTolerant
Increase in temperatureLowTolerant*
Decrease in temperatureLowTolerant
Increase in turbidityTolerantLow
Decrease in turbidityTolerantTolerant*
Increase in wave exposureIntermediateLow
Decrease in wave exposureTolerantTolerant
NoiseTolerantNot relevant
Visual PresenceTolerantNot relevant
Abrasion & physical disturbanceHighHigh
DisplacementHighTolerant

Chemical factors

Ceramium virgatum
Important structural
Ulva intestinalis
Important structural
Synthetic compound contaminationHighIntermediate
Heavy metal contaminationInsufficient informationLow
Hydrocarbon contaminationHighHigh
Radionuclide contaminationInsufficient informationInsufficient information
Changes in nutrient levelsTolerant*Tolerant*
Increase in salinityNot relevantTolerant
Decrease in salinityLowTolerant
Changes in oxygenationInsufficient informationInsufficient information

Biological factors

Ceramium virgatum
Important structural
Ulva intestinalis
Important structural
Introduction of microbial pathogens/parasitesInsufficient informationInsufficient information
Introduction of non-native speciesTolerant*Not relevant
Extraction of this speciesNot relevantIntermediate
Extraction of other speciesNot relevantNot relevant

Species used to indicate biotope recoverability

Physical factors

Ceramium virgatum
Important structural
Ulva intestinalis
Important structural
Substratum LossVery highVery high
SmotheringVery highVery high
Increase in suspended sedimentVery highVery high
Decrease in suspended sedimentNot relevantNot relevant
DesiccationVery highVery high
Increase in emergence regimeVery highNot relevant
Decrease in emergence regimeNot relevantVery high
Increase in water flow rateVery highVery high
Decrease in water flow rateNot relevantNot relevant
Increase in temperatureVery highNot relevant
Decrease in temperatureVery highNot relevant
Increase in turbidityNot relevantVery high
Decrease in turbidityNot relevantNot relevant
Increase in wave exposureVery highVery high
Decrease in wave exposureNot relevantNot relevant
NoiseNot relevantNot relevant
Visual PresenceNot relevantNot relevant
Abrasion & physical disturbanceVery highVery high
DisplacementVery highNot relevant

Chemical factors

Ceramium virgatum
Important structural
Ulva intestinalis
Important structural
Synthetic compound contaminationVery highHigh
Heavy metal contaminationNot relevantVery high
Hydrocarbon contaminationVery highVery high
Radionuclide contaminationNot relevantNot relevant
Changes in nutrient levelsNot relevantNot relevant
Increase in salinityNot relevantNot relevant
Decrease in salinityVery highNot relevant
Changes in oxygenationNot relevantNot relevant

Biological factors

Ceramium virgatum
Important structural
Ulva intestinalis
Important structural
Introduction of microbial pathogens/parasitesNot relevantNot relevant
Introduction of non-native speciesVery highNot relevant
Extraction of this speciesNot relevantVery high
Extraction of other speciesNot relevantNot relevant

This review can be cited as follows:

Budd, G.C. 2008. Ceramium sp. and piddocks on eulittoral fossilized peat. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 23/09/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=369&code=2004>