Biodiversity & Conservation

Corallina officinalis on very exposed lower eulittoral rock

LR.HLR.FR.Coff


ELR.Coff

Image Keith Hiscock - Steep bedrock shore with Corallina officinalis (ELR.Coff). Image width ca 1 m.
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Distribution map

LR.HLR.FR.Coff 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 High
Increase in suspended sediment Intermediate Very high Low Minor decline Low
Decrease in suspended sediment Tolerant Not relevant Not sensitive Not relevant Low
Desiccation High High Moderate Major decline Moderate
Increase in emergence regime Intermediate Very high Low Minor decline Low
Decrease in emergence regime Tolerant* Not relevant Not sensitive* No change Low
Increase in water flow rate Tolerant Not relevant Not sensitive Not relevant Low
Decrease in water flow rate Not relevant Not relevant Not relevant Not relevant Not relevant
Increase in temperature Intermediate Very high Low Decline Moderate
Decrease in temperature Low Immediate Not sensitive Minor decline Low
Increase in turbidity Tolerant Not relevant Not sensitive No change Low
Decrease in turbidity Tolerant Not relevant Not sensitive No change Low
Increase in wave exposure Not relevant Not relevant Not relevant Minor decline High
Decrease in wave exposure High Moderate Moderate Rise Moderate
Noise Tolerant Not relevant Not sensitive No change Not relevant
Visual Presence Tolerant Not relevant Not sensitive No change High
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 Low Immediate Not sensitive Minor decline Low
Hydrocarbon contamination High High Moderate Major decline Moderate
Radionuclide contamination Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Changes in nutrient levels Low Immediate Not sensitive Minor decline Low
Increase in salinity Tolerant Not relevant Not sensitive Insufficient Information Low
Decrease in salinity Intermediate Very high Low 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 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 Very high Low Decline Low
Extraction of other species Not relevant Not relevant Not relevant Not relevant Not relevant

Species used to indicate biotope intolerance

Physical factors

Corallina officinalis
Key structural
Substratum LossHigh
SmotheringIntermediate
Increase in suspended sedimentIntermediate
Decrease in suspended sediment
DesiccationHigh
Increase in emergence regimeIntermediate
Decrease in emergence regime
Increase in water flow rateLow
Decrease in water flow rate
Increase in temperatureIntermediate
Decrease in temperature
Increase in turbidityLow
Decrease in turbidity
Increase in wave exposureLow
Decrease in wave exposure
NoiseTolerant
Visual PresenceTolerant
Abrasion & physical disturbanceLow
DisplacementLow

Chemical factors

Corallina officinalis
Key structural
Synthetic compound contaminationIntermediate
Heavy metal contaminationInsufficient information
Hydrocarbon contaminationLow
Radionuclide contaminationInsufficient information
Changes in nutrient levelsLow
Increase in salinityIntermediate
Decrease in salinity
Changes in oxygenationInsufficient information

Biological factors

Corallina officinalis
Key structural
Introduction of microbial pathogens/parasitesLow
Introduction of non-native speciesNot relevant
Extraction of this speciesIntermediate
Extraction of other speciesIntermediate

Species used to indicate biotope recoverability

Physical factors

Corallina officinalis
Key structural
Substratum LossHigh
SmotheringVery high
Increase in suspended sedimentVery high
Decrease in suspended sediment
DesiccationHigh
Increase in emergence regimeVery high
Decrease in emergence regime
Increase in water flow rateVery high
Decrease in water flow rate
Increase in temperatureHigh
Decrease in temperature
Increase in turbidityImmediate
Decrease in turbidity
Increase in wave exposureVery high
Decrease in wave exposure
NoiseNot relevant
Visual PresenceNot relevant
Abrasion & physical disturbanceHigh
DisplacementHigh

Chemical factors

Corallina officinalis
Key structural
Synthetic compound contaminationHigh
Heavy metal contaminationInsufficient information
Hydrocarbon contaminationVery high
Radionuclide contaminationInsufficient information
Changes in nutrient levelsVery high
Increase in salinityHigh
Decrease in salinity
Changes in oxygenationInsufficient information

Biological factors

Corallina officinalis
Key structural
Introduction of microbial pathogens/parasitesVery high
Introduction of non-native speciesNot relevant
Extraction of this speciesHigh
Extraction of other speciesHigh

This review can be cited as follows:

Tyler-Walters, H. 2005. Corallina officinalis on very exposed lower eulittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 01/10/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=130&code=2004>