HELCOM Metadata catalogue
Introduction of non-indigenous species and translocations HOLAS 3
The layer presents the cumulative negative impacts on marine biodiversity caused by alien species in the Baltic Sea. The layer is based on the Cumulative IMPact of ALien species (CIMPAL) index, developed by Katsanevakis et al. (2016). The original methodology was applied for the Baltic Sea similarly as Korpinen et al. (2019) applied it for the EU waters in their report Multiple pressures and their combined effects in Europe’s seas. The list of species and habitats together with the sensitivity scores are originating from this study and listed in the linage section of this metadata.
The index follows a conservative additive model for calculating the cumulative negative impacts of invasive alien species (IAS), based on magnitude of impact and the related strength of evidence following an uncertainty averse strategy. Cumulative impacts of IAS were estimated on the basis of the distributions of invasive species and ecosystems, and both the reported magnitude of ecological impacts and the strength of such evidence. 29 invasive species and 12 habitats were used for the layer, detailed information on the species, habitats and sensitivity scores used in the assessment are given in the lineage section.
The information on species and habitats were aggregated to 10x10 km grid, based on their occurrence within each grid cell. Calculation of the index was done with the HELCOM SPIA tool, and the result were converted to the 1x1km SPIA grid. The layer was normalized to be used in the assessment.
Simple
- Date (Creation)
- 2023-03-15
- Unique resource identifier
- https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/1aee7b06-af9c-4016-ab23-f1143348dc51
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GEMET - INSPIRE themes, version 1.0
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Species distribution
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GEMET
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species
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- Keywords
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MADS
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HOLAS3
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Pressure layer
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- Use constraints
- Other restrictions
- Other constraints
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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
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- Environment
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- Begin date
- 2016-01-01 Unknown
- End date
- 2021-12-31 Now
- Unique resource identifier
- EPSG:3035
- Distribution format
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ESRI Shapefile
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1.0
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ESRI Shapefile
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1.0
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- OnLine resource
- Download Introduction of non-indigenous species and translocations HOLAS 3 ( WWW:LINK-1.0-http--link )
- OnLine resource
- View Introduction of non-indigenous species and translocations HOLAS 3 ( WWW:LINK-1.0-http--link )
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
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Data on species (points) and habitats (areas) were aggregated to 10x10 km EEA grid. A species and habitat was given the value 1 if it was present in some part of the grid cell, and 0 if not. A cumulative impact assessment was run with the HELCOM SPIA tool combined with information on their sensitivity. The sensitivity scores can be seen in the thematic report on Spatial Pressure and Impact Assessment, available at the HELCOM website. After the tool, the layer was transformed to 1x1km SPIA grid and normalized.
Source of all species data is Emodnet biology (all years included, extracted November 2022), complemented with data used for the HELCOM indicator Trends in arrival of new non-indigenous species (AquaNIS).
Species considered relevant for Baltic Sea and used in the CIMPAL index:
Acartia tonsa, Austrominius modestus, Bonnemaisonia hamifera, Callinectes sapidus, Caulerpa taxifolia, Cercopagis (Cercopagis) pengoi, Codium fragile subsp. Fragile, Crepidula fornicata, Ensis directus, Eriocheir sinensis, Fibrocapsa japonica, Ficopomatus enigmaticus, Gammarus tigrinus, Gracilaria vermiculophylla, Hemigrapsus sanguineus, Homarus americanus, Karenia mikimotoi, Magallana gigas, Marenzelleria spp. (M neglecta_M viridis_M arctia), Mnemiopsis leidyi, Mya arenaria, Neogobius melanostomus, Petricolaria pholadiformis, Potamopyrgus antipodarum, Pseudochattonella verruculosa, Rhithropanopeus harrisii, Sargassum muticum, Styela clava, Telmatogeton japonicus.
Habitats used in the CIMPAL index (data source):
Estuaries-lagoons, infralittoral-subtidal (derived from Copernicus Water & Wetness 2015)
Estuaries-lagoons, littoral-intertidal (derived from Copernicus Water & Wetness 2015)
Estuaries-lagoons, wetlands-saltmarshes (derived from Copernicus Water & Wetness 2015)
Seagrass-seaweed beds (HOLAS 3 Zostera distribution)
Soft intertidal (derived from Copernicus Water & Wetness 2015)
Rocky intertidal (derived from Copernicus Water & Wetness 2015)
Shallow sediment (EUSEAMAP 2021)
Circalittoral sediment (EUSEAMAP 2021)
Shallow rock (<60) (EUSEAMAP 2021)
Circalittoral rock (60-200) (EUSEAMAP 2021)
Pelagic (<200) (derived from EMODNET Bathymetry portal)
Mesopelagic (200-1000) (derived from EMODNET Bathymetry portal)
- File identifier
- 1aee7b06-af9c-4016-ab23-f1143348dc51 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-04-14T13:45:31
Overviews
Spatial extent
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