Species-poor Atlantic littoral mixed sediment
Quick facts
| Red List habitat type | code NEAA2.43 |
|---|---|
| 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
This habitat is found in the littoral zone where the substrate is mixed and typically too mobile or disturbed to support a seaweed community. The overall species diversity associated with the habitat is low.
Indicators of quality:
Both biotic and abiotic indicators have been used to describe marine habitat quality. These include: the presence of characteristic species as well as those which are sensitive to the pressures the habitat may face; water quality parameters; levels of exposure to particular pressure, and more integrated indices which describe habitat structure and function, such as trophic index, or successional stages of development in habitats that have a natural cycle of change over time.
There are no commonly agreed indicators of quality for this habitat, although particular parameters may have been set in certain situations e.g. protected features within Natura 2000 sites, where reference values have been determined and applied on a location-specific basis.
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
- Biological resource use other than agriculture & forestry
- Fishing and harvesting aquatic resources
- Leisure fishing
- Bait digging / Collection
- Pollution
- Marine water pollution
- Oil spills in the sea
- Toxic chemical discharge from material dumped at sea
- Natural System modifications
- Human induced changes in hydraulic conditions
- Modification of hydrographic functioning, general
- Dykes, embankments, artificial beaches, general
- Sea defense or coast protection works, tidal barrages
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 spatial planning
- Other marine-related measures
- Legal protection of habitats and species
- Measures related to hunting, taking and fishing and species management
- Other species management measures
- Regulation/Management of hunting and taking
- Specific single species or species group management 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) |
|---|---|---|---|---|
| Celtic Seas | Present | Unknown | Unknown | Unknown |
| Greater North Sea | ||||
| Bay of Biscay and the Iberian Coast | ||||
| Kattegat | ||||
| Macaronesia |
Extent of Occurrence, Area of Occupancy and habitat area
| Extent of Occurrence (EOO) (Km2) | Area of Occupancy (AOO) | Current estimated Total Area | Comment | |
|---|---|---|---|---|
| EU28 | 349,115 | >25 | Unknown | Based on a limited data set. AOO is known to be an underestimate. |
| EU28+ | >25 | Unknown | Based on a limited data set. AOO is known to be an underestimate. |
EOO = the area (km2) of the envelope around all occurrences of a habitat (calculated by a minimum convex polygon).
