Biodiversity & Conservation

Arenicola marina and synaptid holothurians in extremely shallow soft mud.

SS.SMu.IFiMu.Are


IMU.AreSyn

Image Anon. - Arenicola marina and synaptid holothurians in extremely shallow soft mud. Image width ca 40 cm in foreground.
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Distribution map

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

Chemical Factors

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

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 Not relevant Not relevant
Extraction of this species Intermediate High Low Decline Moderate
Extraction of other species Not relevant Not relevant Not relevant Not relevant Not relevant

Species used to indicate biotope intolerance

Physical factors

Arenicola marina
Important characterizing
Substratum LossHigh
SmotheringTolerant
Increase in suspended sedimentLow
Decrease in suspended sediment
DesiccationNot relevant
Increase in emergence regimeIntermediate
Decrease in emergence regime
Increase in water flow rateIntermediate
Decrease in water flow rate
Increase in temperatureIntermediate
Decrease in temperature
Increase in turbidityLow
Decrease in turbidity
Increase in wave exposureIntermediate
Decrease in wave exposure
NoiseTolerant
Visual PresenceTolerant
Abrasion & physical disturbanceIntermediate
DisplacementLow

Chemical factors

Arenicola marina
Important characterizing
Synthetic compound contaminationHigh
Heavy metal contaminationLow
Hydrocarbon contaminationIntermediate
Radionuclide contaminationInsufficient information
Changes in nutrient levelsIntermediate
Increase in salinityLow
Decrease in salinity
Changes in oxygenationLow

Biological factors

Arenicola marina
Important characterizing
Introduction of microbial pathogens/parasitesInsufficient information
Introduction of non-native speciesInsufficient information
Extraction of this speciesIntermediate
Extraction of other speciesIntermediate

Species used to indicate biotope recoverability

Physical factors

Arenicola marina
Important characterizing
Substratum LossHigh
SmotheringNot relevant
Increase in suspended sedimentImmediate
Decrease in suspended sediment
DesiccationNot relevant
Increase in emergence regimeVery high
Decrease in emergence regime
Increase in water flow rateVery high
Decrease in water flow rate
Increase in temperatureVery high
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 disturbanceVery high
DisplacementImmediate

Chemical factors

Arenicola marina
Important characterizing
Synthetic compound contaminationHigh
Heavy metal contaminationVery high
Hydrocarbon contaminationHigh
Radionuclide contaminationNot relevant
Changes in nutrient levelsHigh
Increase in salinityImmediate
Decrease in salinity
Changes in oxygenationImmediate

Biological factors

Arenicola marina
Important characterizing
Introduction of microbial pathogens/parasitesNot relevant
Introduction of non-native speciesNot relevant
Extraction of this speciesVery high
Extraction of other speciesVery high

This review can be cited as follows:

Tyler-Walters, H. 2001. Arenicola marina and synaptid holothurians in extremely shallow soft mud.. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 03/09/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=108&code=2004>