Biodiversity & Conservation

Ascophyllum nodosum, sponges and ascidians on tide-swept mid eulittoral rock

LR.HLR.FT.AscT


<i>%Ascophyllum nodosum%</i>, sponges and ascidians on tide-swept mid eulittoral rock
Distribution map

LR.HLR.FT.AscT recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • UK_BAP

Habitat sensitivity

Physical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Substratum Loss High Low High Major decline High
Smothering Tolerant Not relevant Not sensitive Not relevant Not relevant
Increase in suspended sediment Low Very high Very low Minor decline Moderate
Decrease in suspended sediment Tolerant Not relevant Not sensitive Not relevant Moderate
Desiccation Intermediate Moderate Moderate Decline Moderate
Increase in emergence regime Intermediate High Low Decline Moderate
Decrease in emergence regime Tolerant Not relevant Not sensitive Not relevant Moderate
Increase in water flow rate Not relevant Not relevant Not relevant Not relevant Not relevant
Decrease in water flow rate Intermediate High Low Decline Moderate
Increase in temperature Low Very high Very low Minor decline Low
Decrease in temperature Low Very high Very low Decline Low
Increase in turbidity Tolerant Not relevant Not sensitive Not relevant Not relevant
Decrease in turbidity Tolerant* Not relevant Not sensitive* Rise Low
Increase in wave exposure High Low High Major decline Moderate
Decrease in wave exposure Not relevant Not relevant Not relevant Not relevant Not relevant
Noise Tolerant Not relevant Not sensitive Not relevant Not relevant
Visual Presence Tolerant Not relevant Not sensitive Not relevant Not relevant
Abrasion & physical disturbance Intermediate High Low Decline Low
Displacement High Low High Major decline Moderate

Chemical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Synthetic compound contamination Intermediate High Low Decline Low
Heavy metal contamination Intermediate High Low Decline Moderate
Hydrocarbon contamination Intermediate High Low Decline Moderate
Radionuclide contamination Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Changes in nutrient levels Low Very high Very low Minor 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 Moderate
Changes in oxygenation Low Very high Very low 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 Insufficient information Insufficient information Not relevant Not relevant
Introduction of non-native species Not relevant Not relevant Not relevant Not relevant Not relevant
Extraction of this species High Low High Major decline Moderate
Extraction of other species Low Very high Very low Decline Low

Species used to indicate biotope intolerance

Physical factors

Ascophyllum nodosum
Key Structuring
Ascidiella scabra
Important characterizing
Fucus serratus
Important other
Fucus vesiculosus
Important other
Patella vulgata
Important other
Chondrus crispus
Important other
Substratum LossHighHighHighIntermediateHighHigh
SmotheringHighLowHighHighHighIntermediate
Increase in suspended sedimentLowLowLowLowLowIntermediate
Decrease in suspended sedimentTolerantLowTolerant
DesiccationIntermediateIntermediateIntermediateIntermediateLowIntermediate
Increase in emergence regimeHighIntermediateIntermediateIntermediateLowIntermediate
Decrease in emergence regimeTolerant*Tolerant
Increase in water flow rateIntermediateLowIntermediateIntermediateLowIntermediate
Decrease in water flow rateLowIntermediate
Increase in temperatureLowTolerantTolerantTolerantLowLow
Decrease in temperatureTolerantLow
Increase in turbidityLowTolerantLowLowLowLow
Decrease in turbidityTolerant*Tolerant*
Increase in wave exposureHighIntermediateHighIntermediateLowIntermediate
Decrease in wave exposureTolerant*Low
NoiseTolerantTolerantTolerantTolerantLowTolerant
Visual PresenceTolerantTolerantTolerantTolerantTolerantTolerant
Abrasion & physical disturbanceHighHighIntermediateIntermediateLowLow
DisplacementHighHighHighHighIntermediateHigh

Chemical factors

Ascophyllum nodosum
Key Structuring
Ascidiella scabra
Important characterizing
Fucus serratus
Important other
Fucus vesiculosus
Important other
Patella vulgata
Important other
Chondrus crispus
Important other
Synthetic compound contaminationIntermediateIntermediateHighIntermediateHighHigh
Heavy metal contaminationLowInsufficient informationLowLowIntermediateInsufficient information
Hydrocarbon contaminationLowInsufficient informationIntermediateLowHighLow
Radionuclide contaminationInsufficient informationInsufficient informationInsufficient informationInsufficient informationInsufficient informationInsufficient information
Changes in nutrient levelsIntermediateInsufficient informationIntermediateIntermediateLowIntermediate
Increase in salinityLowTolerantLowLowLowTolerant
Decrease in salinityIntermediateLow
Changes in oxygenationInsufficient informationLowLowInsufficient informationIntermediateInsufficient information

Biological factors

Ascophyllum nodosum
Key Structuring
Ascidiella scabra
Important characterizing
Fucus serratus
Important other
Fucus vesiculosus
Important other
Patella vulgata
Important other
Chondrus crispus
Important other
Introduction of microbial pathogens/parasitesInsufficient informationInsufficient informationInsufficient informationInsufficient informationInsufficient informationIntermediate
Introduction of non-native speciesInsufficient informationTolerantInsufficient informationInsufficient informationNot relevantInsufficient information
Extraction of this speciesIntermediateNot relevantIntermediateIntermediateIntermediateIntermediate
Extraction of other speciesTolerantNot relevantTolerantInsufficient informationLowInsufficient information

Species used to indicate biotope recoverability

Physical factors

Ascophyllum nodosum
Key Structuring
Ascidiella scabra
Important characterizing
Fucus serratus
Important other
Fucus vesiculosus
Important other
Patella vulgata
Important other
Chondrus crispus
Important other
Substratum LossLowVery highHighHighHighHigh
SmotheringLowImmediateHighHighHighHigh
Increase in suspended sedimentImmediateImmediateVery highImmediateHighHigh
Decrease in suspended sedimentNot relevantHighNot relevant
DesiccationModerateVery highHighHighHighHigh
Increase in emergence regimeLowVery highHighHighHighHigh
Decrease in emergence regimeNot relevantNot relevant
Increase in water flow rateLowImmediateHighHighHighHigh
Decrease in water flow rateImmediateHigh
Increase in temperatureModerateNot relevantNot relevantNot relevantHighVery high
Decrease in temperatureNot relevantVery high
Increase in turbidityImmediateNot relevantVery highImmediateVery highVery high
Decrease in turbidityNot relevantNot relevant
Increase in wave exposureLowVery highHighHighHighHigh
Decrease in wave exposureNot relevantVery high
NoiseNot relevantNot relevantNot relevantNot relevantHighNot relevant
Visual PresenceNot relevantNot relevantNot relevantNot relevantNot relevantNot relevant
Abrasion & physical disturbanceLowVery highHighHighVery highVery high
DisplacementLowVery highHighHighHighHigh

Chemical factors

Ascophyllum nodosum
Key Structuring
Ascidiella scabra
Important characterizing
Fucus serratus
Important other
Fucus vesiculosus
Important other
Patella vulgata
Important other
Chondrus crispus
Important other
Synthetic compound contaminationLowVery highHighHighHighHigh
Heavy metal contaminationHighNot relevantHighHighHighInsufficient information
Hydrocarbon contaminationModerateNot relevantHighHighHighVery high
Radionuclide contaminationInsufficient informationNot relevantInsufficient informationNot relevantInsufficient informationInsufficient information
Changes in nutrient levelsHighNot relevantHighHighHighHigh
Increase in salinityHighNot relevantVery highHighHighNot relevant
Decrease in salinityVery highVery high
Changes in oxygenationInsufficient informationImmediateVery highNot relevantHighInsufficient information

Biological factors

Ascophyllum nodosum
Key Structuring
Ascidiella scabra
Important characterizing
Fucus serratus
Important other
Fucus vesiculosus
Important other
Patella vulgata
Important other
Chondrus crispus
Important other
Introduction of microbial pathogens/parasitesNot relevantNot relevantInsufficient informationNot relevantInsufficient informationHigh
Introduction of non-native speciesNot relevantNot relevantInsufficient informationNot relevantNot relevantInsufficient information
Extraction of this speciesLowNot relevantHighHighHighHigh
Extraction of other speciesNot relevantNot relevantNot relevantNot relevantHighInsufficient information

This review can be cited as follows:

Marshall, C.E. 2005. Ascophyllum nodosum, sponges and ascidians on tide-swept mid eulittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 02/10/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=100&code=2004>