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Location Japan, Mie
Central coordinates 136o 33.00' East  34o 37.00' North
IBA criteria A4i
Area 1,200 ha
Altitude 0 - 5m
Year of IBA assessment 2004

Wild Bird Society of Japan



Site description In between the large Kumozugawa river and the Kushidagawa river, the Kongogawa, Atagogawa, Miwatarigawa--Sakanaigawa rivers and other small rivers flow into the sea where seaweed beds and vast tidal wetlands are formed in the shallow sea area. Such areas are good sites for shellfishery and seaweed farming, so there is human activity in this area. Paddy fields and irrigation ditches are in the neighboring areas. A lot of ponds and eel aquaculture ponds remain here. Small reed beds can be seen around ponds and mouths of the rivers. Each tidal wetland slightly differs depending on its component, muddy or sandy. Consequently, habitat separation is seen in fish, shellfish and crustacean and, as a result, the area provides variety of foods to wild birds. The Hibiscus hamabo, a rare plant species (the site is its northern limit), and sparse woods of Celtis sinensis japonica occur on the coast while shore plants grow on the sand beach.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Grey-tailed Tattler Tringa brevipes passage  2004  present  A4i  Near Threatened 
Whimbrel Numenius phaeopus passage  2004  present  A4i  Least Concern 

IBA Monitoring

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

No known threats no known threats happening now whole area/population (>90%) no or imperceptible deterioration low

Some of site covered (10-49%)  Unknown  Unknown  negligible 

Habitats

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 (2015) Important Bird Areas factsheet: Kumozugawa, Atagogawa and Kongogawa estuaries. Downloaded from http://www.birdlife.org on 06/07/2015

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