HELCOM Metadata catalogue
Reproductive status of seals 2018
This core indicator evaluates the status of the marine environment based on the reproductive status of seals in the Baltic Sea. Quantitative thresholds are used to evaluate if core indicators status is Achieve, Fail or Not assessed. Good status is achieved when the annual reproductive rate (i.e. pregnancy/birth rate) is at least 90% for five years and older (harbour seals) and six years and older (grey and ringed seals).
Currently, a full status evaluation has only been carried out for the grey seal based on Finish and Swedish data. The indicator is applicable for all species of seals and marine mammals that occur in the Baltic Sea, however the amount of data have so far been insufficient for an evaluation of other marine mammal species.
This dataset displays the result of the indicator in HELCOM Assessment Scale 1 (Whole Baltic).
Attribute information:
"Species" = Species
"CODE" = Code of the assessment unit
"Assessment" = Assessment unit name
"Threshold" = Threshold value of core indicator
"Result value" = Result value of core indicator
"Binomial proportion confidence interval"
"Status" = Status for the whole indicator
"Notes" = Additional information
"AULEVEL" = Assessment unit level used for the indicator
"ConfA" = Confidence of classification
"ConfT" = Temporal confidence of classification
"ConfS" = Spatial confidence of classification
"ConfM" = Methodological confidence of classification
Simple
- Date (Publication)
- 2018-06-28
- Unique resource identifier
- https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/6e8ab993-8133-4124-8b47-47e1baad7b55
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GEMET - INSPIRE themes, version 1.0
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Habitats and biotopes
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Oceanographic geographical features
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GEMET
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marine mammal
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reproduction (biological)
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- Keywords
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MADS
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HOLAS2 2018 Core indicator
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Core indicator
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- Use constraints
- Other restrictions
- Other constraints
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Use constraints: The data and resulting data products (tables, figures and maps) available on the indicator web page can be used freely given that the source is cited. The indicator should be cited as following: HELCOM (2018) Reproductive status of seals. HELCOM core indicator report. Online. [Date Viewed], [Web link].
- 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
))
- Begin date
- 2011-01-01
- End date
- 2016-12-31
- 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
)
- 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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The data collected and used in the indicator are based on national databases. The health team of the HELCOM seal expert group is given the responsibility to compile, store current national data, and investigate future arrangements for establishing a HELCOM database.
Seals in each assessment unit are evaluated against the set threshold values. Samples from opportunistically collected, hunted, by-caught and diseased seals can be used in the analysis. Observed data for 4-year intervals for each species are regarded as three independent datasets and tested if they deviate from the set threshold values using non-parametric tests. Also 4-year-moving averages can be used to be able to test the trends in the reproductive rate (at least for birth rate of grey seals). Confidence of the indicator evaluation for grey seals is considered to be high.
Additional information:
http://www.helcom.fi/baltic-sea-trends/indicators/reproductive-status-of-seals/
Link to metadata of dataset used for indicator calculation:
- File identifier
- 6e8ab993-8133-4124-8b47-47e1baad7b55 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2021-09-09T12:04:30
Overviews
Spatial extent
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