HELCOM Metadata catalogue
State of the soft-bottom macrofauna community HOLAS 3
The indicator evaluates the status of the soft-bottom macrofauna community above the permanent halocline in the open sea areas of the Baltic Sea. Quantitative thresholds are used to classify the core indicators status in Achieve, Fail or Not assessed. The current assessment result shows good status in most of the evaluated assessment units. The indicator is not used in coastal areas which are assessed by national methods or in areas below the halocline which are assessed using the Oxygen debt indicator. The indicator takes into account the relative proportion of sensitive and tolerant species, as well as species richness and abundance.
This dataset displays the result of the indicator in HELCOM Assessment Scale 3 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas), so that the indicator is only applicable in the open sea assessment units.
"HELCOM_ID" = HELCOM assessment unit scale 3 ID
"country" = Country
"level_2" = Name of scale 2 HELCOM assessment unit
"level_3" = Name of scale 3 HELCOM assessment unit
"coastal" = Code of scale 3 HELCOM assessment unit
"open_sea" = Name of the open sea area
"Status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”)
"Status value" = Value of the indicator
"BQI normal" Biological Quality Ratio
Simple
- Date (Creation)
- 2023-03-18
- Unique resource identifier
- https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/e9e92045-dc10-48c0-96db-fc08bd294ba2
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GEMET - INSPIRE themes, version 1.0
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Habitats and biotopes
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GEMET
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animal species
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- Keywords
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MADS
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HOLAS3
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Core indicator
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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
- Vector
- 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 State of the soft-bottom macrofauna community HOLAS 3 ( WWW:LINK-1.0-http--link )
- OnLine resource
- View State of the soft-bottom macrofauna community HOLAS 3 ( WWW:LINK-1.0-http--link )
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
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Evaluating the status of soft-bottom macrofauna in the open sea assessment units is done using a method based on a common indicator, the Benthic Quality Index (BQI), where the abundance weighted proportion of sensitive to tolerant taxa and the diversity of the community are the determining parameters. Generally, the higher the proportion of sensitive taxa and the higher the number of different species, the better the environmental status is evaluated to be.
The snapshot dataset on macrofauna includes data from DK, EE, FI, DE, LV, LT, PL, SE
Data was extracted from the HELCOM COMBINE database, hosted at ICES. The extracted dataset was supplemented with additional data from Estonia, Latvia, Lithuania and Germany.
Offshore waters: Monitoring started in some places in 1964. Current status is representing the time period 2016-2021. Monitoring is on-going and contracting parties are reporting data yearly to the COMBINE database at ICES. The confidence of the indicator result is generally high, however regional differences occur as there is variation in how well the data covers the assessed areas spatially and temporally.
Additional info:
http://www.helcom.fi/baltic-sea-trends/indicators/state-of-the-soft-bottom-macrofauna-community/
Link to metadata of dataset used for indicator calculation: https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/ee6fb45a-35d2-451e-9a41-14910b81b509
- File identifier
- e9e92045-dc10-48c0-96db-fc08bd294ba2 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-11-10T11:06:50
Overviews
Spatial extent
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