• HELCOM Metadata catalogue
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AB.H3L5 (EN)

Summary


Estimated observations of the biotope AB.H3L5 were collected from the Baltic Sea area by expert judgements for HELCOM Red List of biotopes, habitats and biotope complexes.


Description


Baltic aphotic muddy sediment dominated by Astarte spp.The HELCOM Red List of Baltic Sea underwater biotopes, habitats and biotope complexes (2013) is an updated and improved version of the Red List assessment of marine and coastal biotopes and biotope complexes published in 1998. The classification of the report follows the proposed International Union for Conservation of Nature (IUCN) criteria and assessment principals but with some modifications for the Baltic Sea.Altogether, the HELCOM Underwater Biotope and habitat classification (HELCOM HUB) includes 209 biotopes of which 59 were red-listed. Many of the red-listed biotopes are located in deep areas of the Baltic Sea due to oxygen-free nature as well as in the southwestern Baltic Sea due to the salinity restricted distribution of species in certain biotope. The HELCOM assessment relies heavily on expert judgment and inference, and the questionnaire data represents the estimated presence-absence data not in-situ measured data. This must be taken in account when observing the map presentation. The biotopes are shown on the map using the EEA 100 km grid. This dataset displays estimated presence of AB.H3L5 according to HELCOM RED LIST assessment experts:The Astarte borealis is found in the Western parts of the Baltic Sea, it’s most eastern populations appearing in the Bornholm Basin. Dense populations of the Astarte elliptica were common on the muddy sediments of the Kiel Bay at depths greater than 15 meters (Trutschler & Samtleben 1988). The distribution map indicates the area in the 100 x 100 km grid where environmental conditions required by the biotope are known to occur and the biotope is estimated to occur in the grid cells.(Data (expert judgements) collected in HELCOM RED LIST project, released in May 2013)

Simple

Date (Creation)
2013-05-13
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/838fa525-675e-4b8d-9358-f8a04e1fc335
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Bio-geographical regions

GEMET

  • map

Keywords
  • MADS

  • imagery

Keywords
  • MADS

  • base map

Keywords
  • MADS

  • earth cover

Use constraints
Other restrictions
Other constraints

Use constraints: Data can be used freely given that the source (HELCOM, 2013) is cited.

Access constraints
Other restrictions
Other constraints
Access constraints: No limitations on public access.
Spatial representation type
Vector
Metadata language
English
Topic category
  • Environment
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Begin date
2013-05-13
Unique resource identifier
EPSG:3035
Distribution format
  • ESRI Shapefile ( 1.0 )

OnLine resource
Download dataset ( WWW:LINK-1.0-http--link )
OnLine resource
Open in Map Viewer ( WWW:LINK-1.0-http--link )
Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-12-08
Statement

ETRS-LAEA5210 is the recommended projection for reference grids by the European Environment Agency.

Based on proposal at the "1st European Workshop on Reference Grids", this grid is the recommened grid for EEA grids. This reference grid is based on ETRS89 Lambert Azimuthal Equal Area projection with parameters: latitude of origin 52° N, longitude of origin 10° E, false northing 3 210 000.0 m, false easting 4 321 000.0 m. Origin of grid is calculated from 0 m N 0 m E of projection. Parameters for grid calculation: start X-axis from origin: 0 m, start Y-Axis from origin: 700000 m, number of rows: 67 and number of columns: 84.

File identifier
838fa525-675e-4b8d-9358-f8a04e1fc335 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2017-10-16T14:40:01
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
Bio-geographical regions

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Associated resources

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