Data Zone
Country/territory: Japan
IBA criteria met: A4i (2004)
For more information about IBA criteria, please click here
Area: 1,200 ha
| IBA conservation status | |||
|---|---|---|---|
| Year of assessment (most recent) | State (condition) | Pressure (threat) | Response (action) |
| 2015 | near favourable | high | negligible |
| For more information about IBA monitoring, please click here | |||
Site description (2007 baseline)
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.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Kumozugawa, Atagogawa and Kongogawa estuaries (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/kumozugawa-atagogawa-and-kongogawa-estuaries-iba-japan on 23/11/2024.