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The site was identified as internationally important for bird conservation in 2004 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
Baikal Teal Sibirionetta formosa	LC	winter (2004)	present	A1, A4i
Grey Plover Pluvialis squatarola	VU	winter (2004)	present	A4i
Kentish Plover Charadrius alexandrinus	LC	non-breeding (2004)	present	A4i
Whimbrel Numenius phaeopus	LC	unknown (2004)	present	A4i
Far Eastern Curlew Numenius madagascariensis	EN	passage (2004)	present	A4i
Bar-tailed Godwit Limosa lapponica	NT	passage (2004)	present	A4i
Black-tailed Godwit Limosa limosa	NT	passage (2004)	present	A4i
Great Knot Calidris tenuirostris	EN	passage (2004)	present	A4i
Dunlin Calidris alpina	NT	winter (2004)	present	A4i
Terek Sandpiper Xenus cinereus	LC	passage (2004)	present	A4i
Common Greenshank Tringa nebularia	LC	passage (2004)	present	A4i
Spotted Greenshank Tringa guttifer	EN	passage (2004)	present	A1, A4i
Saunders's Gull Saundersilarus saundersi	VU	winter (2004)	present	A1, A4i
Relict Gull Larus relictus	VU	winter (2004)	present	A1
A4iii Species group - waterbirds	n/a	unknown (2004)	min 20,000 birds	A4iii

Year	Protected Area	Designation (management category)	% coverage of IBA
2015	Chungnam AsanInjumyeon	야생생물보호구역 (IV)	2

Habitat	% of IBA	Habitat detail
Marine Coastal/Supratidal	major (>10)
Marine Intertidal	major (>10)
Marine Neritic	major (>10)

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Asan Bay (including Asan-ho lake and Sapgyo-ho lake) (South Korea). Downloaded from https://datazone.birdlife.org/site/factsheet/asan-bay-(including-asan-ho-lake-and-sapgyo-ho-lake)-iba-south-korea on 23/12/2024.