Coastal Area 12206 Adjacent waters of Yoro River mouth

Basic Information References

Reason(s) for selection Criteria

Characteristics References

These are the waters in the vicinity of the mouth of the Yoro River. In the area of the river mouth tidal mud flats are forming at the mouth and in the bay due to soil runoff. Expansive saltwater marshlands also are found on the tidal mud flats, considered a valuable part of Tokyo Bay where 44 benthic species, including eight endangered species, have been confirmed. The east shore of Tokyo Bay around the Yoro River has seen the formation of tidal channels between the former coastline and reclaimed land, where scattered tidal mud flats with saltwater marshlands are found. The Tamasaki greenbelt in the city of Ichihara, the mouth of the Maegawa River in Ichihara, the mouth of the Shiizu River in Ichihara, and the mouth of the Obitsu River in the city of Sodegaura, while all running through improved conduits, have been confirmed through a benthic habitat survey to be home to 39, 40, 31, and 42 species, respectively, including 10, 12, eight, and 11 rare and endangered species, an indicator of the high level of diversity among the benthic populations in this area (Yuzuhara et al, 2013; Furota, 2007).