HELCOM Metadata catalogue
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
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GEMET - INSPIRE themes, version 1.0
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Species distribution
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Habitats and biotopes
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GEMET
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marine ecology
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marine mammal
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- Keywords
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MADS
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HOLAS2
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ecosystem component
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- Use constraints
- Other restrictions
- Other constraints
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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
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- Environment
- Biota
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- Begin date
- 2011-01-01
- End date
- 2016-12-31
- Unique resource identifier
- EPSG:3035
- Distribution format
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TIFF
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TIFF
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- 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
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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
Overviews
Spatial extent
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