• HELCOM Metadata catalogue
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Distribution of Baltic seals results HOLAS 3

This core indicator evaluates the state of the marine environment using distribution of the three species of seals that occur in the Baltic Sea, harbour seal, ringed seal and grey seal. Quantitative thresholds are used to evaluate the core indicators status in "Achieve", "Fail" or "Not assessed". The core indicator has three components for each species: distribution of haul-out sites, breeding sites and foraging areas. Good status is achieved when the distribution of seals is close to pristine conditions (e.g. 100 years ago), or where appropriate when currently available haul-out sites are occupied (modern baseline), and when no decrease in the area of occupation occurs. The current evaluation covers the assessment period 2016-2021.


This dataset displays the result of the indicator in HELCOM Assessment Scale 2 for harbour and ringed seal (Division of the Baltic Sea into 17 sub-basins). For grey seals results, HELCOM Assessment Scale 1 is displayed.


Attribute information: (TO BE UPDATED)

"HELCOM_ID" = ID of the HELCOM scale 2 assessment unit

"Area (km2)" = Area of the HELCOM scale 2 assessment unit

"Name" = Name of the HELCOM scale 2 assessment unit

"Status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”)

"AULEVEL" = Assessment unit level used for the indicator

Simple

Date (Creation)
2023-03-16
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/953ffee9-d1b9-4fec-991e-3995ef5f48d6
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Habitats and biotopes

GEMET

  • distribution

  • marine mammal

Keywords
  • MADS

  • HOLAS3 Core Indicator

  • Core indicator

Use constraints
Other restrictions
Other constraints

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
  • Environment
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Begin date
2016-01-01 Unknown
End date
2021-12-31 Now
Unique resource identifier
EPSG:3035
Distribution format
  • ESRI Shapefile ( 1.0 )

OnLine resource
Download Distribution of Baltic seals - harbour seals ( WWW:LINK-1.0-http--link )
OnLine resource
View Distribution of Baltic seals - harbour seals ( WWW:LINK-1.0-http--link )
OnLine resource
Download Distribution of Baltic seals - grey seals ( WWW:LINK-1.0-http--link )
OnLine resource
View Distribution of Baltic seals - grey seals ( WWW:LINK-1.0-http--link )
OnLine resource
Download Distribution of Baltic seals - ringed seals ( WWW:LINK-1.0-http--link )
OnLine resource
View Distribution of Baltic seals - ringed seals ( WWW:LINK-1.0-http--link )
Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-12-08
Statement

The national survey data is compiled annually by the HELCOM Seal Expert Group. A regional database has been developed and is hosted at the HELCOM Secretariat. The new database will include detailed spatial information and is to be updated annually prior to HELCOM Seal Expert Group meetings. The database will be managed by the HELCOM Secretariat having responsibility for updating and storing data provided by the HELCOM Seal Expert Group. The data collected and used in the indicator are based on national aerial surveys. The survey methodology is described in Galatius et al. (2014). This data covers only haul-out sites and not areas used e.g. as foraging grounds.


This core indicator uses three different parameters for evaluating the distribution of the three species of seal that occur in the Baltic Sea. These parameters are:

1. distribution during breeding

2. distribution during moulting, which occurs on land or ice, where data is achieved by surveys from land and air in both cases

3. area of occupancy, which is the area used for foraging and transport. Data is given by satellite- and GSM tagging data

All three components are evaluated for each species in the applicable areas. Good status is achieved if a species in a given area achieves the threshold values for all three parameters. If one parameter does not achieve the threshold value, then the result for the evaluation for the given species and area is not good status i.e. the OOAO approach


Additional information:

http://www.helcom.fi/baltic-sea-trends/indicators/distribution-of-baltic-seals/


Link to metadata of dataset used for indicator calculation:

File identifier
953ffee9-d1b9-4fec-991e-3995ef5f48d6 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2023-04-14T14:10:56
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET
distribution marine mammal
GEMET - INSPIRE themes, version 1.0
Habitats and biotopes

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Associated resources

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