• HELCOM Metadata catalogue
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Benthic species 2016-2021 (HOLAS 3)

Data represent the presence/absence distribution of Benthic species in the Baltic Sea in 1x1km grid. Map is based on data submitted for the HOLAS3 data call and complemented with data from HOLAS2 and HELCOM Biodiversity databases. All datasets are first aggregated to a 5x5km grid and areas deeper than 10m are excluded.


For the 5 new species in HOLAS3 (Potamogeton, Myriophyllum, Najas marina, Fontinalis, Callitriche, Zanichellia) only data reported for HOLAS3 and data in the biodiversity database were used. For Mytilus no filtering with depth was made.

Simple

Date (Publication)
2023-02-14
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/0e879921-850a-4fd4-894f-90ce568a2b66
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Habitats and biotopes

  • Species distribution

GEMET

  • environment

Keywords
  • MADS

  • HOLAS3

  • ecosystem component

  • benthic species

Use constraints
Other restrictions
Other constraints

Use constraints: Data can be used freely given that the source is cited (following creative commons license CC-BY). The source should be cited as: “HELCOM HOLAS 3 Dataset (2023).

Access constraints
Other restrictions
Other constraints
Access constraints: No limitations on public access.
Spatial representation type
Grid
Metadata language
English
Topic category
  • Environment
  • Biota
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thumbnail


Begin date
2016-01-01 Unknown
End date
2021-12-31 Now
Unique resource identifier
EPSG:3035
Distribution format
  • ESRI Shapefile ( 1.0 )

OnLine resource
Download Charophyte distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Charophyte distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Fucus distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Fucus distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Furcellaria lumbricalis distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Furcellaria lumbricalis distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Mytilus distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Mytilus distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Zostera marina distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Zostera marina distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Potamogeton distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Potamogeton distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Myriophyllum distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Myriophyllum distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Najas marina distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Najas marina distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Fontinalis distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Fontinalis distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Callitriche distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Callitriche distribution ( WWW:LINK-1.0-http--link )
OnLine resource
Download Zanichellia distribution ( WWW:LINK-1.0-http--link )
OnLine resource
View Zanichellia distribution ( WWW:LINK-1.0-http--link )
Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-12-08
Statement

All data reported for HOLAS3 (points, polygon and the raster presenting predicted presence of eelgrass in the Estonian waters) were generalized to 5km x 5km grid cells. Data were reported by Denmark, Germany, Estonia and Finland.


Same methodology was used for HELCOM biodiversity database data, and years 2000-2021 were selected.


For HOLAS2 datasets detailed descriptions can be found in HELCOM Metadata Catalogue.


For depth the Emodnet bathymetry 2020 data with resolution 100x100m was used. The original data was transformed to 1x1km grid so that if one 100x100m cell within the 1x1km grid was shallower than 10m, the whole grid cell was indicated as shallower than 10m.


Raster datasets were made of all 3 different data sources and summed together. Finally the datasets were filtered with the 10m depth layer.

File identifier
0e879921-850a-4fd4-894f-90ce568a2b66 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2025-10-20T10:21:51
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET
environment
GEMET - INSPIRE themes, version 1.0
Habitats and biotopes Species distribution

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