FI045
Merenkurkku archipelago


IBA Criteria

Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Whooper Swan Cygnus cygnus LC passage 1996 101-500 individuals B1i, C2
Long-tailed Duck Clangula hyemalis VU passage 1996 10,001-100,000 individuals A4i, B1i, C3
Melanitta fusca NR breeding 1996 3,600 breeding pairs A4i, B1i, C3
Melanitta fusca NR passage 1996 10,001-100,000 individuals A4i, B1i, C3
Goosander Mergus merganser LC breeding 1996 900 breeding pairs A4i, B1i, C3
Goosander Mergus merganser LC passage 1996 5,001-10,000 individuals A4i, B1i, C3
Red-breasted Merganser Mergus serrator LC breeding 1996 1,300 breeding pairs A4i, B1i, C3
Red-breasted Merganser Mergus serrator LC passage 1996 5,001-10,000 individuals A4i, B1i, C3
Common Redshank Tringa totanus LC breeding 1996 650 breeding pairs B1i, B2, C3
Mew Gull Larus canus LC breeding 1996 7,000 breeding pairs B1i, B2, C3
Lesser Black-backed Gull Larus fuscus LC breeding 1996 920 breeding pairs B1i, B3, C3
Great Black-backed Gull Larus marinus LC breeding 1996 200 breeding pairs B3
Caspian Tern Hydroprogne caspia LC breeding 1996 60 breeding pairs B1i, B2, C2, C6
Arctic Tern Sterna paradisaea LC breeding 1996 14,000 breeding pairs B1i, C2
Black Guillemot Cepphus grylle LC breeding 1996 6,500 breeding pairs B1ii, B2
Razorbill Alca torda NT breeding 1996 1,400 breeding pairs B1ii, B3, C3
Osprey Pandion haliaetus LC breeding 1996 15 breeding pairs B2, C6
Red-backed Shrike Lanius collurio LC breeding 1996 101-500 breeding pairs B2, C6
A4iii Species group - waterbirds n/a passage 1996 39,300-250,000 individuals A4iii, C4
A4iii Species group - waterbirds n/a breeding 1996 38,200 breeding pairs A4iii, C4
A4iv Species group - soaring birds/cranes n/a passage 1996 1,000-5,000 individuals B1iv, C5

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2010 medium very unfavourable low
Was the whole site covered? No State assessed by Population
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Climate change and severe weather storms and floods happening now some of area/population (10-49%) slow but significant deterioration medium
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) slow but significant deterioration medium

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Melanitta fusca 3600 1300 breeding pairs 37 very unfavourable
Mergus serrator Red-breasted Merganser 1300 1200 breeding pairs 93 favourable
Tringa totanus Common Redshank 650 200 breeding pairs 31 very unfavourable
Larus canus Mew Gull 11000 11000 breeding pairs 100 favourable
Larus fuscus Lesser Black-backed Gull 1100 1100 breeding pairs 100 favourable
Larus marinus Great Black-backed Gull 200 180 breeding pairs 90 near favourable
Hydroprogne caspia Caspian Tern 60 60 breeding pairs 100 favourable
Sterna paradisaea Arctic Tern 14000 8000 breeding pairs 58 unfavourable
Cepphus grylle Black Guillemot 6500 6700 breeding pairs 100 favourable
Alca torda Razorbill 3300 3300 breeding pairs 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) A management plan exists but it is out of date or not comprehensive Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Valassaarten luonnonsuojelualue Private Nature Reserve 11,790 protected area contained by site 14,860
Quark Archipelago Ramsar Site, Wetland of International Importance 63,699 protected area contained by site 16,730
Merenkurkun saaristo Special Protection Area (Birds Directive) 236 protected area overlaps with site 118,772
Merenkurkku archipelago Baltic Sea Protected Area (Helcom) 127,360 protected area overlaps with site 118,802

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest -
Sea Open Sea, Sea inlets and coastal features -
Unknown -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
unknown -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Merenkurkku archipelago. Downloaded from http://www.birdlife.org on 06/04/2020.