Biodiversity & Conservation

Ruppia maritima in reduced salinity infralittoral muddy sand

SS.IMS.Sgr.Rup


IMS.Rup

Image Anon. - Ruppia maritima in reduced salinity infralittoral muddy sand. Image width ca 40 cm.
Image copyright information

Distribution map

SS.IMS.Sgr.Rup 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 Moderate Moderate Major decline High
Smothering Intermediate Very high Low Decline Low
Increase in suspended sediment Intermediate Very high Low Minor decline Very low
Decrease in suspended sediment Tolerant* Not relevant Not sensitive* No change Very low
Desiccation High High Moderate Major decline Moderate
Increase in emergence regime Intermediate Very high Low Minor decline Moderate
Decrease in emergence regime Tolerant* Not relevant Not sensitive* No change Low
Increase in water flow rate High Moderate Moderate Minor decline Moderate
Decrease in water flow rate Low Very high Very low No change Very low
Increase in temperature Tolerant Not relevant Not sensitive Minor decline Moderate
Decrease in temperature Tolerant Not relevant Not sensitive Minor decline Low
Increase in turbidity High Moderate Moderate Major decline High
Decrease in turbidity Tolerant* Not relevant Not sensitive* No change High
Increase in wave exposure High Moderate Moderate Major decline Moderate
Decrease in wave exposure Tolerant Not relevant Not sensitive Not relevant 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 No change 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 High Moderate Moderate Major decline Moderate
Heavy metal contamination Low Very high Very low Decline Very low
Hydrocarbon contamination High Moderate Moderate Major decline Low
Radionuclide contamination Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Changes in nutrient levels Intermediate Very high Low Minor decline Moderate
Increase in salinity Low Very high Very low Rise Low
Decrease in salinity Intermediate Very high Low Rise Low
Changes in oxygenation Low Very high Very low Decline Low

Biological Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Introduction of microbial pathogens/parasites Not relevant Not relevant Not relevant 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 Minor decline Low
Extraction of other species Intermediate Very high Low Minor decline Low

Species used to indicate biotope intolerance

Physical factors

Hydrobia ulvae
Important functional
Cerastoderma glaucum
Important other
Arenicola marina
Important other
Pomatoschistus minutus
Important other
Substratum LossHighHighHighLow
SmotheringIntermediateHighTolerantIntermediate
Increase in suspended sedimentTolerantTolerantLowTolerant
Decrease in suspended sediment
DesiccationLowHighNot relevantLow
Increase in emergence regimeLowHighIntermediateTolerant
Decrease in emergence regime
Increase in water flow rateIntermediateIntermediateIntermediateLow
Decrease in water flow rate
Increase in temperatureIntermediateLowIntermediateIntermediate
Decrease in temperature
Increase in turbidityTolerantLowLowLow
Decrease in turbidity
Increase in wave exposureHighHighIntermediateTolerant
Decrease in wave exposure
NoiseTolerantInsufficient informationTolerantInsufficient information
Visual PresenceTolerantInsufficient informationTolerantLow
Abrasion & physical disturbanceLowIntermediateIntermediateNot relevant
DisplacementTolerantTolerantLowLow

Chemical factors

Hydrobia ulvae
Important functional
Cerastoderma glaucum
Important other
Arenicola marina
Important other
Pomatoschistus minutus
Important other
Synthetic compound contaminationLowInsufficient informationHighIntermediate
Heavy metal contaminationInsufficient informationInsufficient informationLowHigh
Hydrocarbon contaminationIntermediateInsufficient informationIntermediateIntermediate
Radionuclide contaminationInsufficient informationInsufficient informationInsufficient informationIntermediate
Changes in nutrient levelsLowIntermediateIntermediateTolerant
Increase in salinityTolerantLowLowLow
Decrease in salinity
Changes in oxygenationIntermediateHighLowLow

Biological factors

Hydrobia ulvae
Important functional
Cerastoderma glaucum
Important other
Arenicola marina
Important other
Pomatoschistus minutus
Important other
Introduction of microbial pathogens/parasitesHighInsufficient informationInsufficient informationLow
Introduction of non-native speciesInsufficient informationInsufficient informationInsufficient informationTolerant
Extraction of this speciesNot relevantInsufficient informationIntermediateLow
Extraction of other speciesTolerantInsufficient informationIntermediateLow

Species used to indicate biotope recoverability

Physical factors

Hydrobia ulvae
Important functional
Cerastoderma glaucum
Important other
Arenicola marina
Important other
Pomatoschistus minutus
Important other
Substratum LossHighLowHighHigh
SmotheringVery highLowNot relevantHigh
Increase in suspended sedimentNot relevantNot relevantImmediateNot relevant
Decrease in suspended sediment
DesiccationImmediateLowNot relevantHigh
Increase in emergence regimeImmediateLowVery highNot relevant
Decrease in emergence regime
Increase in water flow rateVery highLowVery highVery high
Decrease in water flow rate
Increase in temperatureImmediateHighVery highHigh
Decrease in temperature
Increase in turbidityNot relevantHighImmediateHigh
Decrease in turbidity
Increase in wave exposureHighLowVery highNot relevant
Decrease in wave exposure
NoiseNot relevantNot relevantNot relevantInsufficient information
Visual PresenceNot relevantNot relevantNot relevantHigh
Abrasion & physical disturbanceVery highModerateVery highNot relevant
DisplacementNot relevantVery highImmediateHigh

Chemical factors

Hydrobia ulvae
Important functional
Cerastoderma glaucum
Important other
Arenicola marina
Important other
Pomatoschistus minutus
Important other
Synthetic compound contaminationImmediateInsufficient informationHighHigh
Heavy metal contaminationInsufficient informationInsufficient informationVery highHigh
Hydrocarbon contaminationVery highInsufficient informationHighHigh
Radionuclide contaminationInsufficient informationNot relevantNot relevantHigh
Changes in nutrient levelsImmediateLowHighNot relevant
Increase in salinityNot relevantHighImmediateHigh
Decrease in salinity
Changes in oxygenationVery highLowImmediateHigh

Biological factors

Hydrobia ulvae
Important functional
Cerastoderma glaucum
Important other
Arenicola marina
Important other
Pomatoschistus minutus
Important other
Introduction of microbial pathogens/parasitesHighNot relevantNot relevantHigh
Introduction of non-native speciesInsufficient informationNot relevantNot relevantNot relevant
Extraction of this speciesNot relevantNot relevantVery highHigh
Extraction of other speciesNot relevantNot relevantVery highVery high

This review can be cited as follows:

Tyler-Walters, H. 2001. Ruppia maritima in reduced salinity infralittoral muddy sand. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 27/08/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=266&code=1997>