City:C/Town:T/
Village:V |
Wetland type |
Biota |
Habitat
|
Reason
for selection |
Nemuro C,
Betsukai T |
Wetland complex including
fens,
Rivers,
Lakes and marshes,
Seagrass beds,
Seaweed beds |
Wetland vegetation |
Furengawa- shitsugen |
The site constitutes a
wetland that extends over the lower reaches of the Furen-gawa (river),
which flows into Furen-ko (lake). This immense fen have had relatively
small impact of human activity. Vegetation in this fen mainly consists
of communities of Phragmites communis-Calamagrostis langsdorffii,
Myrica gale var. tomentosa-Carex lasiocarpa var.occultans,
C. lyngbyei, Menyanthes trifoliata and forests of Alnus japonica,
but occurring intermingled with it are communities of various hummocks
of Sphagnum species including S. magellanicum, S. subfulvum,
S. imbricatum, S. fimbriatum and S. palustre. The central
part of the fen supports the Ledum palustre ssp. diversipilosum-S.
fuscum communities, with marked development of Sphagnum fuscum
hummocks. The site also supports Calamagrostis stricta var.
aculeolata, Vaccinium vitis-idaea, Empetrum nigrum var.
japonicum and Ledum palustre ssp. diversipilosum. |
| Wetland vegetation |
Hashirikotan- shitsugen |
This wetland extends along
the north shore of Furen-ko and over the lower reaches of the Nishibetsu-gawa
(river). It provides nesting sites for Grus japonensis. It
supports communities of Moliniopsis japonica-Sphagnum papillosum,
Ledum palustre ssp. diversipilosum-S. fuscum, Myrica gale
var. tomentosa-Carex lasiocarpa var. occultans, C.
lyngbyei, Phragmites communis-Calamagrostis langsdorffii and
forests of Alnus japonica. |
| Wetland vegetation |
Furenko- shitsugen, Shunkuni-tai
and Onne-to |
Salt marsh vegetation,
including communities of Triglochin maritimum and Carex
subspathacea, mainly covers these areas. There also occur Glaux
maritima var. obtusifolia, Spergularia marina, Potentilla
egedei var. grandis, Puccinellia pumila and Juncus
gracillimus. In the freshwater marsh, there are communities
of Scirpus tabernaemontani, Typha latifolia, Phragmites communis-Calamagrostis
stricta var. aculeolata and P. communis-Carex lyngbyei,
forests of Alnus japonica-Fraxinus mandshurica var. japonica,
and sand dune forests of Picea glehnii (Lysichitum camtschatcense
dominates the forest floor). |
| Seagrasses Marine algae |
Furen-ko |
Immense tidal flats and
Zostera beds (Z. marina and Z. japonica). The beds
are found virtually everywhere in the Lake. It hosts communities
of Z. marina and Z. japonica and is also an important
spawning and nursery ground for Clupea pallasii and Oncorhynchus
keta. One lake kelp species occurs in fairly large quantities
within a water route stretching from nearshore waters of Hashirikotan
to the mouth of the lake. |
| Seagrasses |
Onne-to |
Habitat of Zostera
japonica. |
| Shorebirds |
Furen-ko |
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 Haematopus ostralegus, Charadrius
mongolus and Heteroscelus brevipes and more than 0.25%
of that of Arenaria interpres, Tringa erythropus, T. nebularia
and Calidris alpina has been recorded. Visitation of Eurynorhynchus
pygmeus, Himantopus himantopus, T. totanus, Numenius madagascariensis
and Gallinago hardwickii (all RDB species) has also been
recorded. |
| Geese and ducks |
Furen-ko and Onne-to |
Stopover sites of Cygnus
cygnus, Anser fabalis serrirostris, Branta bernicla, Anas penelope,
A. acuta, Aythya marila and Bucephala clangula. |
| Other birds |
Furen-ko and neighboring
wetlands (Shunkuni-tai, Hashirikotan- shitsugen, Onne-to, Furen-gawa
and its tributaries, Yaushubetsu- gawa and Ponyaushubetsu- gawa) |
Habitat of Grus japonensis.
Over 25% 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 |
Furen-ko |
Habitat of Ruditapes
philippinarum. |
| Benthos |
Onne-to |
Habitat of Ruditapes
philippinarum. |
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