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Biodiversity & Conservation
| Basic Information | Biotope classification | Ecology | Habitat preferences and distribution | Species composition | Sensitivity | Importance |
Cordylophora caspia and Electra crustulenta on reduced salinity infralittoral rock
IR.SIR.EstFa.CorEle
Image Keith Hiscock - Cordylophora caspia and Electra crustulenta on reduced salinity infralittoral rock. Image width ca 6 cm.
Image copyright information
IR.SIR.EstFa.CorEle 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 | High | Moderate | Major decline | High |
| Smothering | Intermediate | Very high | Low | Minor decline | Low |
| Increase in suspended sediment | Tolerant | Not relevant | Not sensitive | No change | Low |
| Decrease in suspended sediment | Low | Immediate | Not sensitive | No change | Low |
| Desiccation | Intermediate | Very high | Low | Minor decline | Low |
| Increase in emergence regime | Intermediate | Very high | Low | Minor decline | Low |
| Decrease in emergence regime | Tolerant* | Not relevant | Not sensitive* | No change | Moderate |
| Increase in water flow rate | Intermediate | Very high | Low | No change | Low |
| Decrease in water flow rate | High | High | Moderate | Major decline | Low |
| Increase in temperature | Tolerant | Not relevant | Not sensitive | Minor decline | Moderate |
| Decrease in temperature | Low | Immediate | Not sensitive | No change | Moderate |
| Increase in turbidity | Low | Immediate | Not sensitive | No change | Low |
| Decrease in turbidity | Tolerant | Not relevant | Not sensitive | Not relevant | Low |
| Increase in wave exposure | High | High | Moderate | Major 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 | Very high | Low | Minor decline | 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 | Intermediate | Very high | Low | Minor decline | Low |
| Heavy metal contamination | Low | Immediate | Not sensitive | No change | Low |
| Hydrocarbon contamination | Intermediate | Very high | Low | Minor 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 | Intermediate | Very high | Low | Rise | Moderate |
| Decrease in salinity | Intermediate | Very high | Low | Rise | Low |
| Changes in oxygenation | Low | Immediate | Not sensitive | Minor 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 | Insufficient information | Not relevant | Insufficient information | Insufficient Information | Not relevant |
| Extraction of this species | Not relevant | Not relevant | Not relevant | Not relevant | Not relevant |
| Extraction of other species | Tolerant* | Not relevant | Not sensitive* | Not relevant | Not relevant |
Species used to indicate biotope intolerance
Physical factors
| Cordylophora caspia Important characterizing | Balanus crenatus Important structural | |
| Substratum Loss | High | High |
| Smothering | Low | High |
| Increase in suspended sediment | Tolerant | Low |
| Decrease in suspended sediment | Low | |
| Desiccation | High | High |
| Increase in emergence regime | Intermediate | High |
| Decrease in emergence regime | Tolerant* | |
| Increase in water flow rate | Low | Low |
| Decrease in water flow rate | Low | |
| Increase in temperature | Tolerant | High |
| Decrease in temperature | Low | |
| Increase in turbidity | Low | Low |
| Decrease in turbidity | Tolerant* | |
| Increase in wave exposure | High | Low |
| Decrease in wave exposure | Tolerant* | |
| Noise | Tolerant | Tolerant |
| Visual Presence | Tolerant | Tolerant |
| Abrasion & physical disturbance | Intermediate | Intermediate |
| Displacement | Intermediate | High |
Chemical factors
| Cordylophora caspia Important characterizing | Balanus crenatus Important structural |
|
| Synthetic compound contamination | Low | High |
| Heavy metal contamination | Low | Intermediate |
| Hydrocarbon contamination | Low | Low |
| Radionuclide contamination | Insufficient information | Insufficient information |
| Changes in nutrient levels | Tolerant* | Intermediate |
| Increase in salinity | Intermediate | Low |
| Decrease in salinity | Tolerant* | |
| Changes in oxygenation | Low | High |
Biological factors
| Cordylophora caspia Important characterizing | Balanus crenatus Important structural |
|
| Introduction of microbial pathogens/parasites | Insufficient information | Insufficient information |
| Introduction of non-native species | Insufficient information | Insufficient information |
| Extraction of this species | Not relevant | Not relevant |
| Extraction of other species | Not relevant | Not relevant |
Species used to indicate biotope recoverability
Physical factors
| Cordylophora caspia Important characterizing | Balanus crenatus Important structural | |
| Substratum Loss | High | High |
| Smothering | Immediate | High |
| Increase in suspended sediment | Not relevant | High |
| Decrease in suspended sediment | Immediate | |
| Desiccation | High | High |
| Increase in emergence regime | Very high | High |
| Decrease in emergence regime | Not relevant | |
| Increase in water flow rate | Very high | Very high |
| Decrease in water flow rate | Immediate | |
| Increase in temperature | Not relevant | High |
| Decrease in temperature | Very high | |
| Increase in turbidity | Immediate | Very high |
| Decrease in turbidity | Not relevant | |
| Increase in wave exposure | High | Very high |
| Decrease in wave exposure | Not relevant | |
| Noise | Not relevant | Not relevant |
| Visual Presence | Not relevant | Not relevant |
| Abrasion & physical disturbance | Very high | High |
| Displacement | Very high | High |
Chemical factors
| Cordylophora caspia Important characterizing | Balanus crenatus Important structural |
|
| Synthetic compound contamination | Immediate | High |
| Heavy metal contamination | Immediate | High |
| Hydrocarbon contamination | Immediate | High |
| Radionuclide contamination | Not relevant | Not relevant |
| Changes in nutrient levels | Not relevant | High |
| Increase in salinity | Very high | Very high |
| Decrease in salinity | Not relevant | |
| Changes in oxygenation | Immediate | High |
Biological factors
| Cordylophora caspia Important characterizing | Balanus crenatus Important structural |
|
| Introduction of microbial pathogens/parasites | Not relevant | Not relevant |
| Introduction of non-native species | Not relevant | Not relevant |
| Extraction of this species | Not relevant | Not relevant |
| Extraction of other species | Not relevant | Not relevant |
This review can be cited as follows:
Tyler-Walters, H. 2002. Cordylophora caspia and Electra crustulenta on reduced salinity infralittoral rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 20/05/2013]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=27&code=1997>
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