Mogamigawa estuary (Japan) - BirdLife IBA factsheet

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Mogamigawa estuary

Current view: Data table and detailed info

IBA Justification

The site was identified as important 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 List¹	Season	Year(s)	Size	IBA criteria
Whooper Swan Cygnus cygnus	LC	winter	2003	5,000 individuals	A4i
Tundra Swan Cygnus columbianus	LC	winter	2003	5,000 individuals	A4i
Northern Pintail Anas acuta	LC	winter	2003	present	A4i
A4iii Species group - waterbirds	n/a	winter	2003	min 20,000 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2004. The most recent assessment (2010) is shown below.

IBA conservation assessment
Year of assessment	State	Pressure	Response
2010	not assessed	low	low
Whole site assessed?	State assessed by	Accuracy of information
yes	unset	poor

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Human intrusions and disturbance	likely in long term (beyond 4 years)	some of area/population (10-49%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	Unknown	Unknown	low

IBA Protection

Year	Protected Area	Designation	% overlap with IBA
1948	Shonai kaihin	都道府県立自然公園	37
1983	Mogami	Prefectural Wildlife Protection Area	100
2003	Common fishery right area(Yamagata)	共同漁業権区域	9
2005	Mogamigawa kako	国指定鳥獣保護区	92

Habitats

Habitat¹	Habitat detail	% of IBA
Artificial/Terrestrial		major (>10)
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Marine Neritic		major (>10)

1. IUCN Habitat classification.

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mogamigawa estuary (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/mogamigawa-estuary-iba-japan on 23/11/2024.