City:C/Town:T/
Village:V |
Wetland type |
Biota |
Habitat |
Reason for selection |
Shibetsu T,
Betsukai T |
Fens,
Salt marshes,
Seagrass beds |
Wetland vegetation |
Notsuke-hanto and Odai-to |
Salt marsh vegetation includes communities of Triglochin
maritimum, Glaux maritima var. obtusifolia, Spergularia marina
and Potentilla egedei var. grandis while vegetation
of freshwater marsh, or swamp, includes communities of Scirpus
tabernaemontani, Alisma plantago-aquatica var. orientale,
Hippuris vulgaris, Eleocharis mamillata-E. kamtschatica, Typha latifolia,
Menyanthes trifoliata, Carex lasiocarpa var. occultans and
Eriophorum vaginatum. Sphagnum magellanicum, Ledum palustre ssp.
diversipilosum, Calamagrostis stricta var. aculeolata
and Carex omiana occur in the E. vaginatum communities. |
| Seagrasses |
Notsuke-wan |
The largest and extensively developed Zostera
marina communities in Japan. Major fishing ground of Pandalus
kessleri. The Z. marina communities are found virtually
everywhere in the bay. Colonies of Z. marina and Z. asiatica
are formed in the bay. It provides habitat for Pandalus kessleri. |
| Shorebirds |
Notsuke-zaki and Odai-to |
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
Arenaria interpres and Heteroscelus brevipes, and
more than 0.25% of that of Pluvialis squatarola has been
recorded. Visitation of Tringa totanus and Gallinago hardwickii
(both RDB species) has also been recorded. |
| Geese and ducks |
Notsuke-wan |
Stopover or wintering site of Cygnus cygnus,
Branta bernicla, Aythya marila, Bucephala clangula and Anas
penelope. |
| Other birds |
Notsuke-hanto and neighboring rivers |
Habitat of Grus japonensis. About 7% of the total number
of the nests built is found here. |
| Freshwater fish |
Habitat of Hucho perryi in Konsen-genya | This wetland site encompasses large and small rivers
in Konsen-genya, such as the Ichani-gawa, Shibetsu-gawa, Tohoro-gawa,
Shunbetsu-gawa, Tokotan-gawa, Nishibetsu-gawa, Furen-gawa, Biwase-gawa,
Bekambeushi-gawa, Kushiro-gawa and Akan-gawa, and lakes and marshes
in the vicinity, all of which are inhabited by Hucho perryi
and Phoxinus percnurus sachalinensis. |
| Benthos |
Notsuke-wan and Odai-to |
Important habitat of Pandalus kessleri and
Ruditapes philippinarum. |
[ Back ]
|
|
