Biodiversity & Conservation

Filamentous green seaweeds on low salinity infralittoral mixed sediment or rock

SS.IMX.KSwMx.FiG


IMX.FiG

Image Anon. - Tufts of green filamentous algae. Image width ca 15 cm.
Image copyright information

Distribution map

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

Chemical Factors

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

Biological Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Introduction of microbial pathogens/parasites Low Very high Very low Moderate
Introduction of non-native species Not relevant Not relevant Not relevant Not relevant High
Extraction of this species Intermediate High Low No change Low
Extraction of other species Low Very high Very low No change High

Species used to indicate biotope intolerance

Physical factors

Arenicola marina
Key structural
Neomysis integer
Important characterizing
Ulva intestinalis
Key structural
Asterias rubens
Important functional
Mytilus edulis
Important functional
Substratum LossHighTolerantHighHighHigh
SmotheringTolerantTolerantHighLowIntermediate
Increase in suspended sedimentLowTolerant*IntermediateLowLow
Decrease in suspended sedimentLowTolerantLow
DesiccationNot relevantNot relevantLowHighLow
Increase in emergence regimeIntermediateNot relevantTolerant*TolerantLow
Decrease in emergence regimeNot relevantLowLow
Increase in water flow rateIntermediateIntermediateIntermediateIntermediateLow
Decrease in water flow rateTolerant*TolerantLow
Increase in temperatureIntermediateIntermediateTolerant*HighLow
Decrease in temperatureIntermediateTolerantLowLow
Increase in turbidityLowTolerant*LowLowTolerant
Decrease in turbidityLowTolerant*Tolerant
Increase in wave exposureIntermediateHighLowIntermediateIntermediate
Decrease in wave exposureNot relevantTolerantLowIntermediate
NoiseTolerantTolerantNot relevantTolerantTolerant*
Visual PresenceTolerantTolerantNot relevantTolerantTolerant*
Abrasion & physical disturbanceIntermediateNot relevantHighIntermediateIntermediate
DisplacementLowNot relevantTolerantLowIntermediate

Chemical factors

Arenicola marina
Key structural
Neomysis integer
Important characterizing
Ulva intestinalis
Key structural
Asterias rubens
Important functional
Mytilus edulis
Important functional
Synthetic compound contaminationHighIntermediateIntermediateIntermediateIntermediate
Heavy metal contaminationLowIntermediateLowIntermediateIntermediate
Hydrocarbon contaminationIntermediateIntermediateHighHighIntermediate
Radionuclide contaminationInsufficient informationInsufficient informationInsufficient informationInsufficient informationInsufficient information
Changes in nutrient levelsIntermediateTolerant*Tolerant*LowIntermediate
Increase in salinityLowHighTolerantHighLow
Decrease in salinityTolerantTolerantLow
Changes in oxygenationLowNot relevantInsufficient informationHighLow

Biological factors

Arenicola marina
Key structural
Neomysis integer
Important characterizing
Ulva intestinalis
Key structural
Asterias rubens
Important functional
Mytilus edulis
Important functional
Introduction of microbial pathogens/parasitesInsufficient informationInsufficient informationInsufficient informationIntermediateIntermediate
Introduction of non-native speciesInsufficient informationInsufficient informationNot relevantInsufficient informationInsufficient information
Extraction of this speciesIntermediateNot relevantIntermediateNot relevantIntermediate
Extraction of other speciesIntermediateInsufficient informationNot relevantLowLow

Species used to indicate biotope recoverability

Physical factors

Arenicola marina
Key structural
Neomysis integer
Important characterizing
Ulva intestinalis
Key structural
Asterias rubens
Important functional
Mytilus edulis
Important functional
Substratum LossHighNot relevantVery highHighHigh
SmotheringNot relevantNot relevantVery highVery highHigh
Increase in suspended sedimentImmediateNot relevantVery highHighImmediate
Decrease in suspended sedimentImmediateNot relevantImmediate
DesiccationNot relevantNot relevantVery highHighImmediate
Increase in emergence regimeVery highNot relevantNot relevantNot relevantVery high
Decrease in emergence regimeNot relevantVery highVery high
Increase in water flow rateVery highVery highVery highHighVery high
Decrease in water flow rateNot relevantNot relevantVery high
Increase in temperatureVery highVery highNot relevantHighVery high
Decrease in temperatureVery highNot relevantHighVery high
Increase in turbidityImmediateNot relevantVery highVery highNot relevant
Decrease in turbidityVery highNot relevantNot relevant
Increase in wave exposureVery highVery highVery highHighHigh
Decrease in wave exposureNot relevantNot relevantHighHigh
NoiseNot relevantNot relevantNot relevantNot relevantNot relevant
Visual PresenceNot relevantNot relevantNot relevantNot relevantNot relevant
Abrasion & physical disturbanceVery highNot relevantVery highHighHigh
DisplacementImmediateNot relevantNot relevantImmediateHigh

Chemical factors

Arenicola marina
Key structural
Neomysis integer
Important characterizing
Ulva intestinalis
Key structural
Asterias rubens
Important functional
Mytilus edulis
Important functional
Synthetic compound contaminationHighVery highHighHighHigh
Heavy metal contaminationVery highVery highVery highHighHigh
Hydrocarbon contaminationHighVery highVery highHighHigh
Radionuclide contaminationNot relevantNot relevantNot relevantInsufficient informationNot relevant
Changes in nutrient levelsHighNot relevantNot relevantHighHigh
Increase in salinityImmediateVery highNot relevantHighVery high
Decrease in salinityNot relevantNot relevantVery high
Changes in oxygenationImmediateNot relevantNot relevantHighVery high

Biological factors

Arenicola marina
Key structural
Neomysis integer
Important characterizing
Ulva intestinalis
Key structural
Asterias rubens
Important functional
Mytilus edulis
Important functional
Introduction of microbial pathogens/parasitesNot relevantNot relevantNot relevantHighHigh
Introduction of non-native speciesNot relevantNot relevantNot relevantInsufficient informationNot relevant
Extraction of this speciesVery highNot relevantVery highNot relevantHigh
Extraction of other speciesVery highNot relevantNot relevantHighVery high

This review can be cited as follows:

Hiscock, K. 2002. Filamentous green seaweeds on low salinity infralittoral mixed sediment or rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 25/07/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=157&code=1997>