Biodiversity & Conservation

Ostrea edulis beds on shallow sublittoral muddy sediment

SS.SMx.IMx.Ost


IMX.Ost

Image Bernard Picton - Ostrea edulis beds on shallow sublittoral muddy sediment. Image width ca 25 cm.
Image copyright information

Distribution map

SS.SMx.IMx.Ost recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • EC_Habitats
  • OSPAR

Habitat sensitivity

Physical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Substratum Loss High Very low / none Very High Major decline Moderate
Smothering High Very low / none Very High Major decline Moderate
Increase in suspended sediment Low Very high Very low No change Low
Decrease in suspended sediment Low Very high Very low No change Low
Desiccation Low High Low Decline Very low
Increase in emergence regime Low High Low Decline Very low
Decrease in emergence regime Tolerant* Not relevant Not sensitive* Not relevant Very low
Increase in water flow rate Intermediate Low High Major decline Very low
Decrease in water flow rate Not relevant Not relevant Not relevant Not relevant Not relevant
Increase in temperature Low High Low Minor decline Low
Decrease in temperature Intermediate Low High Major decline Moderate
Increase in turbidity Low Very high Very low Minor decline Low
Decrease in turbidity Tolerant* Not relevant Not sensitive* No change Very low
Increase in wave exposure High Very low / none Very High Decline Low
Decrease in wave exposure Tolerant Not relevant Not sensitive No change Low
Noise Tolerant Not relevant Not sensitive No change High
Visual Presence Tolerant Not relevant Not sensitive No change High
Abrasion & physical disturbance Intermediate Moderate Moderate Decline Low
Displacement Low Very high Very low Minor decline Low

Chemical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Synthetic compound contamination High Very low / none Very High Major decline Moderate
Heavy metal contamination Intermediate Low High Decline Moderate
Hydrocarbon contamination Intermediate Moderate Moderate Decline Low
Radionuclide contamination Insufficient information Not relevant Insufficient information Insufficient Information Not relevant
Changes in nutrient levels Tolerant* Not relevant Not sensitive* No change Low
Increase in salinity Not relevant Not relevant Not relevant Not relevant Not relevant
Decrease in salinity Low High Low Decline Moderate
Changes in oxygenation Low High Low Decline Low

Biological Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Introduction of microbial pathogens/parasites High Very low / none Very High High
Introduction of non-native species High Very low / none Very High Decline High
Extraction of this species High Very low / none Very High Major decline High
Extraction of other species Not relevant Not relevant Not relevant Not relevant Not relevant

Species used to indicate biotope intolerance

Physical factors

Ostrea edulis
Key structural
Substratum LossHigh
SmotheringHigh
Increase in suspended sedimentLow
Decrease in suspended sediment
DesiccationIntermediate
Increase in emergence regimeIntermediate
Decrease in emergence regimeTolerant*
Increase in water flow rateLow
Decrease in water flow rate
Increase in temperatureLow
Decrease in temperatureIntermediate
Increase in turbidityLow
Decrease in turbidity
Increase in wave exposureIntermediate
Decrease in wave exposureTolerant
NoiseTolerant
Visual PresenceTolerant
Abrasion & physical disturbanceIntermediate
DisplacementLow

Chemical factors

Ostrea edulis
Key structural
Synthetic compound contaminationHigh
Heavy metal contaminationIntermediate
Hydrocarbon contaminationLow
Radionuclide contaminationInsufficient information
Changes in nutrient levelsTolerant*
Increase in salinityLow
Decrease in salinityLow
Changes in oxygenationIntermediate

Biological factors

Ostrea edulis
Key structural
Introduction of microbial pathogens/parasitesHigh
Introduction of non-native speciesHigh
Extraction of this speciesHigh
Extraction of other speciesNot relevant

Species used to indicate biotope recoverability

Physical factors

Ostrea edulis
Key structural
Substratum Loss
Smothering
Increase in suspended sedimentVery high
Decrease in suspended sediment
DesiccationLow
Increase in emergence regimeLow
Decrease in emergence regimeNot relevant
Increase in water flow rateVery high
Decrease in water flow rate
Increase in temperatureVery high
Decrease in temperatureLow
Increase in turbidityVery high
Decrease in turbidity
Increase in wave exposureLow
Decrease in wave exposureNot relevant
NoiseNot relevant
Visual PresenceNot relevant
Abrasion & physical disturbanceLow
DisplacementVery high

Chemical factors

Ostrea edulis
Key structural
Synthetic compound contamination
Heavy metal contaminationLow
Hydrocarbon contaminationVery high
Radionuclide contaminationInsufficient information
Changes in nutrient levelsNot relevant
Increase in salinityVery high
Decrease in salinityVery high
Changes in oxygenationLow

Biological factors

Ostrea edulis
Key structural
Introduction of microbial pathogens/parasites
Introduction of non-native species
Extraction of this species
Extraction of other speciesNot relevant

This review can be cited as follows:

Tyler-Walters, H. 2001. Ostrea edulis beds on shallow sublittoral muddy sediment. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 23/11/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=69&code=2004>