City:C/Town:T/
Village:V |
Wetland type
|
Biota
|
Habitat
|
Reason for selection
|
Chiba:
Kimitsu C,
Funabashi C,
Ichikawa C,
Narashino C,
Kisarazu C,
Sodegaura C,
Futtsu C
Tokyo:
Edogawa-ku,
Ota-ku
Kanagawa:
Kawasaki C,
Yokohama C
|
Coastal tidal flats,
Estuaries with tidal flat,
Salt marshes,
Shallow sea areas,
Seagrass beds |
Seagrasses |
Estuary of
Obitsu-gawa |
Habitat of Zostera japonica. |
| Shorebirds |
Estuary of
Obitsu-gawa
(Banzu-higata) |
Many bird species are observed in large population sizes during the spring and autumn migrating seasons and the wintering season. Visitation of more than 1% of the minimum estimated population of Charadrius alexandrinus, Heteroscelus brevipes and Calidris alpina, and more than 0.25% of that of Charadrius mongolus, Numenius phaeopus, Arenaria interpres, Crocethia alba and Calidris alpina has been recorded. Visitation of Calidris ptilocnemis, Himantopus himantopus, Tringa totanus, Numenius madagascariensis and Glareola maldivarum (all RDB species) has also been recorded.
|
| Insects |
Estuary of
Obitsu-gawa |
The only habitat of Dryptra fulveola in Japan. Salt marsh with Phragmites communis and Carex scabrifolia.
|
| Benthos |
Estuary of
Obitsu-gawa
and Banzu-higata |
The largest tidal flat in Tokyo-wan (bay), with a vast salt marsh in the estuary. Extremely well preserved natural topography. Habitat of Cerithidea rhizophorarum, Laternula limicola, Clistocoeloma merguiense and Chasmagnathus convexus. Ruditapes philippinarum, Mactra veneriformis and Umbonium moniliferum in Banzu-higata (tidal flat).
|
| Seagrasses |
Nearshore waters
of Futtsu |
The only sizable Zostera beds (Zostera marina and Z. japonica) found in Tokyo-wan (bay). |
| Shorebirds |
Futtsu-higata |
Relatively many bird species are observed in relatively large population sizes during the spring and autumn migrating seasons. Visitation of more than 1% of the minimum estimated population of Crocethia alba has been recorded. Visitation of Calidris ptilocnemis, Tringa totanus and Numenius madagascariensis (all RDB species) has also been recorded.
|
| Benthos |
Futtsu-higata |
Sandy tidal flat found closest to the mouth of Tokyo-wan (bay). Habitat of Ruditapes philippinarum and Mactra veneriformis. It retains the original form of the tidal flat in Tokyo-wan (bay) accompanied by extensive Zostera beds. |
Geese and
ducks |
Futtsu-sasu,
Sanbanze and
Shore of Tokyo Metropolis |
Wintering sites of Aythya marila. |
| Shorebirds |
Sanbanze |
Many bird species are observed in large population sizes during the spring and autumn migrating seasons and the wintering season. Visitation of more than 1% of the minimum estimated population of Calidris alpina and more than 0.25% of that of Haematopus ostralegus, Pluvialis squatarola, Charadrius mongolus, Heteroscelus brevipes, Arenaria interpres and Crocethia alba has been recorded. Visitation of Numenius madagascariensis (an RDB species) has also been recorded.
|
| Benthos |
Sanbanze |
The largest tidal flat in the innermost part of Tokyo-wan (bay). Rich in bivalves including Ruditapes philippinarum, and Stenothyra edogawaensis. It exhibits great purification capability of the water in the bay.
|
| Shorebirds |
Yatsu-higata |
Many bird species are observed in large population sizes during the spring and autumn migrating seasons and the wintering season. Visitation of more than 1% of the minimum estimated population of Calidris alpina, and more than 0.25% of that of Himantopus himantopus, Pluvialis squatarola, Charadrius alexandrinus, C. mongolus, Limosa lapponica, Numenius phaeopus, Heteroscelus brevipes, Arenaria interpres and Crocethia alba has been recorded. Visitation of Himantopus himantopus, Numenius madagascariensis and Tringa totanus (all RDB species) has also been recorded.
|
Freshwater
fish |
Estuaries
at the head of
Tokyo-wan |
Estuaries of such rivers as Obitsu-gawa, Yoro-gawa, Edo-gawa and Tama-gawa are northernmost habitat of Periophthalmus modestus. In the tidal flat in the estuary of Obitsu-gawa occur Chaenogobius macrognathos, Chaenogobius uchidai and Pseudogobius masago.
|
| Benthos |
Edogawa Canal |
Though an artificial drainage canal, it contains a sand flat, a mud flat and a salt marsh consisting partly of Phragmites communis. Species typical of a closed tidal flat, such as Cyclina sinensis, occur in abundance. This canal is the northernmost habitat of Periophthalmus modestus.
|
| Insects |
Lower reaches
of Edo-gawa |
Habitat of Mortonagrion hirosei. |
| Shorebirds |
Kasai-kaihin-koen |
Relatively many bird species are observed in relatively large population sizes during the spring and autumn migrating seasons. Visitation of more than 0.25% of the minimum estimated population of Charadrius mongolus and Arenaria interpres has been recorded. Visitation Himantopus himantopus and Numenius madagascariensis (both RDB species) has also been recorded.
|
| Shorebirds |
Tokyo Port Wild Bird Park,
Oi Central Seaside Park
and Morigasaki |
Relatively many bird species are observed in relatively large population sizes during the spring and autumn migrating seasons. Visitation of Himantopus himantopus and Tringa totanus (both RDB species) has also been recorded.
|
| Shorebirds |
Estuary of
Tama-gawa |
Relatively many bird species are observed in relatively large population sizes during the spring and autumn migrating seasons. Visitation of Himantopus himantopus (an RDB species) has also been recorded.
|
| Benthos |
Nojima-kaigan |
It is the only naturally formed tidal flat on the Kanagawa side of the inner Tokyo-wan (bay). It provides habitat for Macrophthalmus abbreviatus, Solen strictus and other tidal flat animals.
|
