Biodiversity & Conservation

Halcampa chrysanthellum and Edwardsia timida on sublittoral clean stone gravel

SS.SCS.ICS.HchrEdw

IGS.HalEdw

Image Bernard Picton - Edwardsia timida on sublittoral clean stone gravel. Image width ca XX cm.
Image copyright information

Distribution map

SS.SCS.ICS.HchrEdw 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 Low High Major decline Very low
Smothering Intermediate High Low Decline Low
Increase in suspended sediment Tolerant Not relevant Not sensitive No change Low
Decrease in suspended sediment Tolerant Not relevant Not sensitive No change Low
Desiccation Not relevant Not relevant Not relevant Not relevant Not relevant
Increase in emergence regime Not relevant Not relevant Not relevant Not relevant Not relevant
Decrease in emergence regime Not relevant Not relevant Not relevant Not relevant Not relevant
Increase in water flow rate High Very low / none Very High Decline Low
Decrease in water flow rate High High Moderate Decline Low
Increase in temperature Tolerant Not relevant Not sensitive No change Low
Decrease in temperature Intermediate High Low Decline Low
Increase in turbidity Intermediate High Low Minor decline Low
Decrease in turbidity Low Very high Very low No change Low
Increase in wave exposure High Very low / none Very High Decline Low
Decrease in wave exposure Tolerant* Not relevant Not sensitive* Rise Low
Noise Tolerant Not relevant Not sensitive Not relevant Not relevant
Visual Presence Tolerant Not relevant Not sensitive Not relevant Not relevant
Abrasion & physical disturbance High High Moderate Decline Moderate
Displacement Low Immediate Not sensitive No change Moderate

Chemical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Synthetic compound contamination Insufficient information Not relevant Insufficient information Insufficient Information Not relevant
Heavy metal contamination Insufficient information Not relevant Insufficient information Insufficient Information Not relevant
Hydrocarbon contamination Insufficient information Not relevant Insufficient information Insufficient Information Not relevant
Radionuclide contamination Insufficient information Not relevant Insufficient information Insufficient Information Not relevant
Changes in nutrient levels Insufficient information Not relevant Insufficient information Insufficient Information Not relevant
Increase in salinity Not relevant Not relevant Not relevant Not relevant Not relevant
Decrease in salinity Intermediate High Low Decline Moderate
Changes in oxygenation Intermediate High Low Decline Low

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 Not relevant Not relevant Not relevant Not relevant Not relevant
Extraction of this species Not relevant Not relevant Not relevant Not relevant Not relevant
Extraction of other species Not relevant Not relevant Not relevant Not relevant Not relevant

This review can be cited as follows:

Hiscock, K. 2001. Halcampa chrysanthellum and Edwardsia timida on sublittoral clean stone gravel. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 19/06/2013]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=80&code=2004>