• HELCOM Metadata catalogue
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Harbour porpoise distribution

This map shows the distribution and abundance of harbour porpoise across the Baltic Sea.


The abundance of harbour porpoise is presented using 4 abundance classes. The classification is based on expert consultation and information from scientific literature (e.g. Sveegaard et al. 2011, Viquerat et al. 2014). The class borders are defined by expert opinion and generalizing the data gathered and modelled in SAMBAH project. For the Baltic Proper the SAMBAH results have been used to delineate the class borders: 20% probability of detection during May-October has been used to define the area of “common occurrence and reproduction”, and the 20% probability of detection during November-April has been used to define the “regular occurrence, no regular reproduction” area.


Please note: The applied spatial scale includes lagoons and estuaries of the inner coastal waters (e.g. Szczecin Lagoon, Jasmund lagoon) where harbour porpoises do not or only exceptionally occur unlike the map suggests.

Simple

Date (Creation)
2018
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/0c359a75-bb20-4603-a447-fa9381c2b088
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Species distribution

  • Habitats and biotopes

GEMET

  • marine ecology

  • marine mammal

Keywords
  • MADS

  • HOLAS2

  • ecosystem component

Use constraints
Other restrictions
Other constraints

Use constraints: TBC

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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S
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W
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Begin date
2011-01-01
End date
2016-12-31
Unique resource identifier
EPSG:3035
Distribution format
  • TIFF ( )

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

Data source:

SAMBAH data kindly provided by SAMBAH project partners. Project report available at: http://www.sambah.org/Docs/General/Non-technical-report-v.-1.8.2.pdf.

Please note: There is no secured knowledge about the reproduction in Schleswig-Holstein waters.

References:

Sveegaard, S., Teilmann, J., Tougaard, J., Dietz, R., Mouritsen, K.N., Desportes, G., Siebert, U., 2011. High-density areas for harbour porpoise (Phocoena phocoena) identified by satellite tracking. Marine Mammal Science 27(1):230-246.

Viquerat, S., Herr, H., Gilles, A., Peschko, V., Siebert, U., Sveegaard, S., Teilmann, J., 2014: Abundance of harbour porpoise (Phocoena phocoena) in the western Baltic, Belt Seas and Kattegat. Marine Biology 161:745-754.


Data quality:

The map is based on the SAMBAH dataset and expert consultation. It gives a rough estimate on the abundance of harbour porpoise in the Baltic Sea.


Attribute information:

Raster representing abundance classes with following values

1 = Common occurrence and reproduction

0.75 = Regular occurrence, regular reproduction

0.5 = Regular occurrence

0.25 = Rare occurrence

File identifier
0c359a75-bb20-4603-a447-fa9381c2b088 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-09-09T11:58:23
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

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

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Associated resources

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