Red List habitat classification > RL - Marine habitats > RLBLS - Black Sea > BLSA5.22 Estuarine Pontic infralittoral sand

Estuarine Pontic infralittoral sand

Quick facts

Red List habitat type code BLSA5.22
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

Estuarine infralittoral sands in front of the large rivers in the north-west Black Sea form an important habitat type. The largest river estuaries in the Black Sea are the Dniepro-Bugsky estuary in Ukraine and the estuarine waters of the Danube pro-Delta in Romania. Here numerous individual river mouths form a transition between the Danube Delta and the Black Sea. Underwater hydraulic dunes in the ‘Danube mouths’ are an important feature in this area. These are areas with reduced salinity, infauna abundance/diversity, feeding grounds for juvenile fish, birds, a naturally mobile habitat.  Smaller locations are the coastal zone of Kinburnskaya spit (Tendrovsky Bay), Grigorievsky, Tiligulsky, Berezansky, Kiziltakskiy estuaries.

Indicators of quality:

Biomass of infauna is one possible parameter that could be used to indicate quality of this habitat. At the mouth of Dniepro-Bugsky estuary average density of macrozoobenthos on sands is 80 ind/m-2, biomass – 11,28 g/ m-2, in the semi open estuaries with significant influence of the fresh waters the level of biomass of macrozoobenthos on the sands are higher (255 – 439,9 g/ m-2) due to the distribution of bivalve mollusks.

Characteristic species
For full habitat description, please download the habitat factsheet.

Threat status

Synthesis of Red List assessment

Detailed information on the abundance and extent of this habitat is lacking. Information on the quantity and quality of this habitat including historical or recent trends is unknown. For the purposes of Red List assessment this habitat is considered to be Data Deficient.
EU
Red List Category Red List Criteria
Data Deficient -
Europe
Red List Category Red List Criteria
Data Deficient -

Confidence in the assessment

low
Red List of habitat categories and criteria descriptions

Pressures and threats

  • Pollution
    • Nutrient enrichment (N, P, organic matter)
    • Input of contaminants (synthetic substances, non-synthetic substances, radionuclides) - diffuse sources, point sources, acute events
  • Natural System modifications
    • Human induced changes in hydraulic conditions
    • Removal of sediments (mud...)
    • Extraction of sea-floor and subsoil minerals (e.g. sand, gravel, rock, oil, gas)

Habitat restoration potential

There is insufficient data and knowledge of this habitat to assess its capacity to recover

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

Conservation and management measures which would benefit this habitat include implementing measures to maintain physical and biological integrity, including control and regulation of discharges to the marine environment, improvement of water quality management outside EU member states, coastal development controls, contingency plans to be followed in the event of a major pollution incident, raised public awareness of ecological value and vulnerability of the habitat.

List of conservation and management needs

  • Measures related to marine habitats
    • Other marine-related measures
  • Measures related to spatial planning
    • Establish protected areas/sites
  • Measures related to urban areas, industry, energy and transport
    • Other measures

Distribution

For each habitat a distribution map was produced from a wide variety of sources indicating known and potential occurrences of the habitat in 10x10 km grids within Europe. Occurrences in grid cells were given in two classes: actual distribution from relatively reliable sources (surveys, expert knowledge), and potential distribution based on models or less reliable indicators. Please download the fact sheet to see the map.

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

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.
AOO = the area occupied by a habitat measured in number of 10x10 km grid cells.
EOO = the area (km2) of the envelope around all occurrences of a habitat (calculated by a minimum convex polygon).

Characteristic species

The full list of characteristic species and genus are available above from the Summary. The species available in the EUNIS database are shown here.
Invertebrates Bittium reticulatum
Invertebrates Cerastoderma glaucum
Invertebrates Dikerogammarus haemobaphes
Invertebrates Gammarus marinus
Invertebrates Palaemon adspersus
Species scientific name English common name Species group
Bittium reticulatum Invertebrates
Cerastoderma glaucum Invertebrates
Dikerogammarus haemobaphes Invertebrates
Gammarus marinus Invertebrates
Palaemon adspersus Invertebrates

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Other classifications

Not available
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