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Location Japan, Aichi
Central coordinates 136o 59.00' East  34o 50.00' North
IBA criteria A4i
Area 1,400 ha
Altitude 0 - 5m
Year of IBA assessment 2004

Wild Bird Society of Japan

Site description The mouth of the Yahagigawa river area extends to the cities of Nishio and Hekinan. Since the present course of the river was created about 400 years ago, alluvial and a series of reclamation works have been made, resulting in the current geographic features. Along the dry riverbed areas with concrete embankments, Phragmites australis and other plants grow.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater Scaup Aythya marila winter  2004  present  A4i  Least Concern 
Grey-headed Lapwing Vanellus cinereus resident  2004  present  A4i  Least Concern 

IBA Monitoring

2010 low not assessed negligible
Poor - based on little, or potentially unreliable/unrepresentative, data

Energy production and mining renewable energy likely in long term (beyond 4 years) small area/few individuals (<10%) no or imperceptible deterioration low

Little/none of site covered (<10%)  Unknown  Unknown  negligible 


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Estuarine waters; Intertidal mud, sand or salt flats  -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Yahagigawa estuary. Downloaded from on 25/10/2016

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