Mytilid-dominated Pontic moderately exposed upper infralittoral rock, blocks and boulders, with foliose algae (other than Fucales)
Quick facts
Red List habitat type | code BLSA3.26 |
---|---|
Threat status | |
Europe | Data Deficient |
EU | Data Deficient |
Relation to |
|
Source | European Red List habitat factsheet |
European Red List of habitats reports | |
European Red List of habitats (Excel table) |
Summary
Rocky habitats in the infralittoral zone exposed to wave action. Rocks are typically covered by foliose algal communities. Mytilids are a constant component. These habitats occur on exposed rocky coasts, from low water up to depths of 10m. Winter storms may cause changes to species compositions and coverage.
Indicators of quality:
A set of categories common to the habitat indicating good biotic and abiotic quality. These indicators will be used, together with the general “Stages of Quality Decline” (applicable for all terrestrial and marine habitats), to assess the severity of quality decline over a certain time frame on a country/regional scale and for EU28 and EU28+.
Threat status
Synthesis of Red List assessment
EU | |
Red List Category | Red List Criteria |
Data Deficient | - |
Europe | |
Red List Category | Red List Criteria |
Data Deficient | - |
Confidence in the assessment
Pressures and threats
- Urbanisation, residential and commercial development
- Other urbanisation, industrial and similar activities
- Pollution
- Nutrient enrichment (N, P, organic matter)
- Input of contaminants (synthetic substances, non-synthetic substances, radionuclides) - diffuse sources, point sources, acute events
Habitat restoration potential
Trends in extent |
|
Average current trend in quantity |
|
Unknown | Unknown |
EU28 | EU28+ |
Trends in quality |
|
Average current trend in quality |
|
Unknown | Unknown |
EU28 | EU28+ |
Conservation and management needs
List of conservation and management needs
- Measures related to marine habitats
- Other marine-related measures
- Measures related to spatial planning
- Other marine-related measures
- Establish protected areas/sites
- Measures related to urban areas, industry, energy and transport
- Other measures
Distribution
Geographic occurrence and trends
Seas | Present or presence uncertain | Current area of habitat (Km2) | Recent trend in quantity (last 50 years) | Recent trend in quality (last 50 years) |
---|---|---|---|---|
Black Sea | Present | Unknown | Unknown | Unknown |
Sea of Marmara |
Extent of Occurrence, Area of Occupancy and habitat area
Extent of Occurrence (EOO) (Km2) | Area of Occupancy (AOO) | Current estimated Total Area | Comment | |
---|---|---|---|---|
EU28 | Unknown | Unknown | Unknown | The habitat is known to occur in the Black Sea but there is insufficient data to accurately calculate EOO and AOO. |
EU28+ | Unknown | Unknown | The habitat is known to occur in the Black Sea but there is insufficient data to accurately calculate EOO and AOO. |
EOO = the area (km2) of the envelope around all occurrences of a habitat (calculated by a minimum convex polygon).