Biodiversity & Conservation

Cordylophora caspia and Electra crustulenta on reduced salinity infralittoral rock

IR.SIR.EstFa.CorEle


SIR.CorEle

Image Keith Hiscock - Cordylophora caspia and Electra crustulenta on reduced salinity infralittoral rock. Image width ca 6 cm.
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Distribution map

IR.SIR.EstFa.CorEle 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 High Moderate Major decline High
Smothering Intermediate Very high Low Minor decline Low
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 Minor decline Low
Increase in emergence regime Intermediate Very high Low Minor decline Low
Decrease in emergence regime Tolerant* Not relevant Not sensitive* No change Moderate
Increase in water flow rate Intermediate Very high Low No change Low
Decrease in water flow rate High High Moderate Major decline Low
Increase in temperature Tolerant Not relevant Not sensitive Minor decline Moderate
Decrease in temperature Low Immediate Not sensitive No change Moderate
Increase in turbidity Low Immediate Not sensitive No change Low
Decrease in turbidity Tolerant Not relevant Not sensitive Not relevant Low
Increase in wave exposure High High Moderate Major decline Low
Decrease in wave exposure Tolerant Not relevant Not sensitive No change Low
Noise Tolerant Not relevant Not sensitive No change High
Visual Presence Tolerant Not relevant Not sensitive No change High
Abrasion & physical disturbance Intermediate Very high Low Minor decline Low
Displacement Intermediate Very high Low Major decline Low

Chemical Factors

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

Species used to indicate biotope intolerance

Physical factors

Cordylophora caspia
Important characterizing
Balanus crenatus
Important structural
Substratum LossHighHigh
SmotheringLowHigh
Increase in suspended sedimentTolerantLow
Decrease in suspended sedimentLow
DesiccationHighHigh
Increase in emergence regimeIntermediateHigh
Decrease in emergence regimeTolerant*
Increase in water flow rateLowLow
Decrease in water flow rateLow
Increase in temperatureTolerantHigh
Decrease in temperatureLow
Increase in turbidityLowLow
Decrease in turbidityTolerant*
Increase in wave exposureHighLow
Decrease in wave exposureTolerant*
NoiseTolerantTolerant
Visual PresenceTolerantTolerant
Abrasion & physical disturbanceIntermediateIntermediate
DisplacementIntermediateHigh

Chemical factors

Cordylophora caspia
Important characterizing
Balanus crenatus
Important structural
Synthetic compound contaminationLowHigh
Heavy metal contaminationLowIntermediate
Hydrocarbon contaminationLowLow
Radionuclide contaminationInsufficient informationInsufficient information
Changes in nutrient levelsTolerant*Intermediate
Increase in salinityIntermediateLow
Decrease in salinityTolerant*
Changes in oxygenationLowHigh

Biological factors

Cordylophora caspia
Important characterizing
Balanus crenatus
Important structural
Introduction of microbial pathogens/parasitesInsufficient informationInsufficient information
Introduction of non-native speciesInsufficient informationInsufficient information
Extraction of this speciesNot relevantNot relevant
Extraction of other speciesNot relevantNot relevant

Species used to indicate biotope recoverability

Physical factors

Cordylophora caspia
Important characterizing
Balanus crenatus
Important structural
Substratum LossHighHigh
SmotheringImmediateHigh
Increase in suspended sedimentNot relevantHigh
Decrease in suspended sedimentImmediate
DesiccationHighHigh
Increase in emergence regimeVery highHigh
Decrease in emergence regimeNot relevant
Increase in water flow rateVery highVery high
Decrease in water flow rateImmediate
Increase in temperatureNot relevantHigh
Decrease in temperatureVery high
Increase in turbidityImmediateVery high
Decrease in turbidityNot relevant
Increase in wave exposureHighVery high
Decrease in wave exposureNot relevant
NoiseNot relevantNot relevant
Visual PresenceNot relevantNot relevant
Abrasion & physical disturbanceVery highHigh
DisplacementVery highHigh

Chemical factors

Cordylophora caspia
Important characterizing
Balanus crenatus
Important structural
Synthetic compound contaminationImmediateHigh
Heavy metal contaminationImmediateHigh
Hydrocarbon contaminationImmediateHigh
Radionuclide contaminationNot relevantNot relevant
Changes in nutrient levelsNot relevantHigh
Increase in salinityVery highVery high
Decrease in salinityNot relevant
Changes in oxygenationImmediateHigh

Biological factors

Cordylophora caspia
Important characterizing
Balanus crenatus
Important structural
Introduction of microbial pathogens/parasitesNot relevantNot relevant
Introduction of non-native speciesNot relevantNot relevant
Extraction of this speciesNot relevantNot relevant
Extraction of other speciesNot relevantNot relevant

This review can be cited as follows:

Tyler-Walters, H. 2002. Cordylophora caspia and Electra crustulenta 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 28/07/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=27&code=1997>