- Species information
- Habitats information
- Biological Traits (BIOTIC)
- Search tools
- Sensitivity assessment
- Effects of marine activities and natural events
- Marine life protection
- Ecosystem Structure and Function Dossiers
- Species bibliography
- Habitat bibliography
- Glossary of scientific terms
- Seabed Indicator Species Database
- Effects of Fishing
- NIMF Database
- Gallery
Biodiversity & Conservation
| Basic Information | Biotope classification | Ecology | Habitat preferences and distribution | Species composition | Sensitivity | Importance |
Fucus distichus and Fucus spiralis f. nana on extremely exposed upper shore rock
LR.ELR.FR.Fdis
Image Sue Scott - View down shore showing upper shore bedrock with Fucus distichus and green algae. Image width ca XX cm.
Image copyright information
LR.ELR.FR.Fdis 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 | Moderate |
| Smothering | Low | Very high | Very low | No change | Moderate |
| Increase in suspended sediment | Low | Very high | Very low | No change | Moderate |
| Decrease in suspended sediment | Low | Very high | Very low | No change | Moderate |
| Desiccation | Intermediate | High | Low | Major decline | Moderate |
| Increase in emergence regime | Low | Very high | Very low | No change | Moderate |
| Decrease in emergence regime | Low | Very high | Very low | No change | Moderate |
| Increase in water flow rate | Low | Very high | Very low | No change | Moderate |
| Decrease in water flow rate | Low | Very high | Very low | No change | Low |
| Increase in temperature | Low | High | Low | No change | Low |
| Decrease in temperature | Low | Very high | Very low | No change | High |
| Increase in turbidity | Low | Very high | Very low | No change | Moderate |
| Decrease in turbidity | Low | Very high | Very low | No change | Moderate |
| Increase in wave exposure | High | High | Moderate | Major decline | Moderate |
| Decrease in wave exposure | High | High | Moderate | No change | Moderate |
| Noise | Tolerant | Not relevant | Not sensitive | No change | High |
| Visual Presence | Tolerant | Not relevant | Not sensitive | No change | High |
| Abrasion & physical disturbance | High | High | Moderate | Minor decline | Moderate |
| Displacement | High | High | Moderate | Decline | Moderate |
Chemical Factors
| Click factor name to view rationale | Intolerance | Recoverability | Sensitivity | Species Richness | Evidence / Confidence |
|---|---|---|---|---|---|
| Synthetic compound contamination | High | High | Moderate | Decline | Low |
| Heavy metal contamination | Low | Very high | Very low | No change | Moderate |
| Hydrocarbon contamination | Low | High | Low | Minor decline | Low |
| Radionuclide contamination | Insufficient information | Insufficient information | Insufficient information | Not relevant | Not relevant |
| Changes in nutrient levels | Low | Very high | Very low | No change | Moderate |
| Increase in salinity | High | High | Moderate | Major decline | Low |
| Decrease in salinity | Low | High | Low | Minor 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 | Low | High | Low | Low | |
| Introduction of non-native species | Not relevant | Not relevant | Not relevant | No change | Moderate |
| Extraction of this species | Not relevant | Not relevant | Not relevant | Not relevant | Not relevant |
| Extraction of other species | Low | High | Low | No change | Moderate |
Species used to indicate biotope intolerance
Physical factors
| Fucus distichus Key structural | Fucus spiralis Key structural | |
| Substratum Loss | High | High |
| Smothering | High | High |
| Increase in suspended sediment | Low | Low |
| Decrease in suspended sediment | ||
| Desiccation | High | High |
| Increase in emergence regime | High | High |
| Decrease in emergence regime | ||
| Increase in water flow rate | Low | Intermediate |
| Decrease in water flow rate | ||
| Increase in temperature | High | Low |
| Decrease in temperature | ||
| Increase in turbidity | Low | Low |
| Decrease in turbidity | ||
| Increase in wave exposure | Intermediate | High |
| Decrease in wave exposure | ||
| Noise | Tolerant | Tolerant |
| Visual Presence | Tolerant | Tolerant |
| Abrasion & physical disturbance | Intermediate | Intermediate |
| Displacement | High | High |
Chemical factors
| Fucus distichus Key structural | Fucus spiralis Key structural |
|
| Synthetic compound contamination | Insufficient information | Insufficient information |
| Heavy metal contamination | Low | Intermediate |
| Hydrocarbon contamination | Insufficient information | High |
| Radionuclide contamination | Insufficient information | Insufficient information |
| Changes in nutrient levels | Insufficient information | Intermediate |
| Increase in salinity | Low | Intermediate |
| Decrease in salinity | ||
| Changes in oxygenation | Insufficient information | Insufficient information |
Biological factors
| Fucus distichus Key structural | Fucus spiralis Key structural |
|
| Introduction of microbial pathogens/parasites | Insufficient information | Insufficient information |
| Introduction of non-native species | Insufficient information | Insufficient information |
| Extraction of this species | Intermediate | Intermediate |
| Extraction of other species | Insufficient information | Insufficient information |
Species used to indicate biotope recoverability
Physical factors
| Fucus distichus Key structural | Fucus spiralis Key structural | |
| Substratum Loss | High | High |
| Smothering | High | High |
| Increase in suspended sediment | Very high | Very high |
| Decrease in suspended sediment | ||
| Desiccation | High | High |
| Increase in emergence regime | High | High |
| Decrease in emergence regime | ||
| Increase in water flow rate | High | High |
| Decrease in water flow rate | ||
| Increase in temperature | High | Not relevant |
| Decrease in temperature | ||
| Increase in turbidity | Very high | High |
| Decrease in turbidity | ||
| Increase in wave exposure | High | High |
| Decrease in wave exposure | ||
| Noise | Not relevant | Not relevant |
| Visual Presence | Not relevant | Not relevant |
| Abrasion & physical disturbance | High | High |
| Displacement | High | High |
Chemical factors
| Fucus distichus Key structural | Fucus spiralis Key structural |
|
| Synthetic compound contamination | Not relevant | Not relevant |
| Heavy metal contamination | Very high | High |
| Hydrocarbon contamination | Not relevant | High |
| Radionuclide contamination | Not relevant | Not relevant |
| Changes in nutrient levels | Not relevant | High |
| Increase in salinity | High | Very high |
| Decrease in salinity | ||
| Changes in oxygenation | Not relevant | Not relevant |
Biological factors
| Fucus distichus Key structural | Fucus spiralis Key structural |
|
| Introduction of microbial pathogens/parasites | Not relevant | Not relevant |
| Introduction of non-native species | Not relevant | Not relevant |
| Extraction of this species | High | High |
| Extraction of other species | Not relevant | Not relevant |
This review can be cited as follows:
Hill, J.M. 2005. Fucus distichus and Fucus spiralis f. nana on extremely exposed upper shore rock. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 20/06/2013]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=234&code=1997>
- About MarLIN
- |
- Contact, Enquiries & Feedback
- |
- Terms & Conditions
- |
- Funding
- |
- Glossary
- |
- Accessibility
- |
- Privacy
- |
- Sponsorship
- |
- Gallery
The information (TEXT ONLY) provided by the Marine Life Information Network (MarLIN) is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. Note that images and other media featured on this page are each governed by their own terms and conditions and they may or may not be available for reuse. Permissions beyond the scope of this license are available at http://www.marlin.ac.uk/termsandconditions.php. Based on a work at www.marlin.ac.uk.