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The site was identified as internationally important for bird conservation in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Greylag Goose Anser anser	LC	passage (1996)	101–500 birds	B1i, C3
Goosander Mergus merganser	LC	passage (1996)	1,001–5,000 birds	A4i, B1i, C3

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2010) is shown below.

State (condition of the trigger species' populations)
Species	Actual vs Reference (units)	% remaining	Result
Greylag Goose Anser anser	24 / 100 (birds)	24	very poor
Goosander Mergus merganser	1,250 / 1,000 (birds)	100	good

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Human intrusions and disturbance	happe­ning now	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	high

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Some of area covered (10–49%)	No management plan exists, but the management planning process has begun	Very little or no conservation action taking place	low

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	55	Perennial crops, orchards and groves; Urban parks and gardens; Arable land; Forestry plantations
Marine Coastal/Supratidal	major (>10)
Marine Neritic	major (>10)
Forest	-

Land use	% of IBA
agriculture	-
hunting	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Paimionlahti bay (Finland). Downloaded from https://datazone.birdlife.org/site/factsheet/paimionlahti-bay-iba-finland on 25/12/2024.