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Biodiversity & Conservation
| Basic Information | Biotope classification | Ecology | Habitat preferences and distribution | Species composition | Sensitivity | Importance |
Musculus discors beds on moderately exposed circalittoral rock
CR.MCR.M.Mus
CR.MCR.M.Mus recorded (
) and expected (
) distribution in Britain and Ireland (see below)
Habitat sensitivity
Physical Factors
| Click factor name to view rationale | Intolerance | Recoverability | Sensitivity | Species Richness | Evidence / Confidence |
|---|---|---|---|---|---|
| Substratum Loss | High | Moderate | Moderate | Major decline | Low |
| Smothering | High | Moderate | Moderate | Decline | Low |
| Increase in suspended sediment | Low | High | Low | Minor decline | Low |
| Decrease in suspended sediment | Low | High | Low | Minor decline | 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 | Intermediate | High | Low | Minor decline | Low |
| Decrease in water flow rate | Low | High | Low | Minor decline | Low |
| Increase in temperature | Low | High | Low | Minor decline | Low |
| Decrease in temperature | Low | High | Low | Minor decline | Low |
| Increase in turbidity | Low | High | Low | Minor decline | Low |
| Decrease in turbidity | Low | Very high | Very low | Minor decline | Low |
| Increase in wave exposure | Intermediate | High | Low | Decline | Low |
| Decrease in wave exposure | Low | High | Low | Decline | Low |
| 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 | Decline | Low |
| Displacement | Intermediate | High | Low | Decline | Low |
Chemical Factors
| Click factor name to view rationale | Intolerance | Recoverability | Sensitivity | Species Richness | Evidence / Confidence |
|---|---|---|---|---|---|
| Synthetic compound contamination | Intermediate | High | Low | Decline | Low |
| Heavy metal contamination | Insufficient information | Not relevant | Insufficient information | Insufficient Information | Not relevant |
| Hydrocarbon contamination | Low | Very high | Very low | Decline | Very low |
| Radionuclide contamination | Insufficient information | Not relevant | Insufficient information | Insufficient Information | Not relevant |
| Changes in nutrient levels | Tolerant* | Not relevant | Not sensitive* | Minor decline | Not relevant |
| Increase in salinity | Not relevant | Not relevant | Not relevant | Not relevant | Not relevant |
| Decrease in salinity | Intermediate | High | Low | Major decline | Low |
| Changes in oxygenation | Intermediate | High | Low | Decline | Very low |
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 | Very low | |
| Introduction of non-native species | Insufficient information | Not relevant | Insufficient information | Insufficient Information | Not relevant |
| Extraction of this species | Intermediate | High | Low | Minor decline | Low |
| Extraction of other species | Intermediate | High | Low | Minor decline | Low |
Species used to indicate biotope intolerance
Physical factors
| Musculus discors Important characterizing | |
| Substratum Loss | High |
| Smothering | High |
| Increase in suspended sediment | Low |
| Decrease in suspended sediment | Low |
| Desiccation | Intermediate |
| Increase in emergence regime | Intermediate |
| Decrease in emergence regime | Tolerant* |
| Increase in water flow rate | Intermediate |
| Decrease in water flow rate | Low |
| Increase in temperature | Tolerant |
| Decrease in temperature | Tolerant |
| Increase in turbidity | Low |
| Decrease in turbidity | Tolerant* |
| Increase in wave exposure | Intermediate |
| Decrease in wave exposure | Not relevant |
| Noise | Tolerant |
| Visual Presence | Tolerant |
| Abrasion & physical disturbance | Intermediate |
| Displacement | Low |
Chemical factors
| Musculus discors Important characterizing |
|
| Synthetic compound contamination | Intermediate |
| Heavy metal contamination | Insufficient information |
| Hydrocarbon contamination | Low |
| Radionuclide contamination | Insufficient information |
| Changes in nutrient levels | Tolerant* |
| Increase in salinity | Not relevant |
| Decrease in salinity | Intermediate |
| Changes in oxygenation | Intermediate |
Biological factors
| Musculus discors Important characterizing |
|
| Introduction of microbial pathogens/parasites | Low |
| Introduction of non-native species | Insufficient information |
| Extraction of this species | Not relevant |
| Extraction of other species | Intermediate |
Species used to indicate biotope recoverability
Physical factors
| Musculus discors Important characterizing | |
| Substratum Loss | Moderate |
| Smothering | Moderate |
| Increase in suspended sediment | Immediate |
| Decrease in suspended sediment | Immediate |
| Desiccation | High |
| Increase in emergence regime | High |
| Decrease in emergence regime | Not relevant |
| Increase in water flow rate | High |
| Decrease in water flow rate | Immediate |
| Increase in temperature | Not relevant |
| Decrease in temperature | Not relevant |
| Increase in turbidity | Very high |
| Decrease in turbidity | Not relevant |
| Increase in wave exposure | High |
| Decrease in wave exposure | Not relevant |
| Noise | Not relevant |
| Visual Presence | Not relevant |
| Abrasion & physical disturbance | High |
| Displacement | Very high |
Chemical factors
| Musculus discors Important characterizing |
|
| Synthetic compound contamination | High |
| Heavy metal contamination | Not relevant |
| Hydrocarbon contamination | Very high |
| Radionuclide contamination | Not relevant |
| Changes in nutrient levels | Not relevant |
| Increase in salinity | Not relevant |
| Decrease in salinity | High |
| Changes in oxygenation | High |
Biological factors
| Musculus discors Important characterizing |
|
| Introduction of microbial pathogens/parasites | Very high |
| Introduction of non-native species | Not relevant |
| Extraction of this species | Not relevant |
| Extraction of other species | High |
This review can be cited as follows:
Tyler-Walters, H. 2002. Musculus discors beds on moderately exposed circalittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 22/05/2013]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=90&code=1997>
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for Musculus discors beds on moderately exposed circalittoral rock |
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