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Coastal Area 11101 Adjacent waters of Tokachi River mouth

Basic Information A separate window opensReferences

Relevant municipalities Urahoro, Toyokoro, Hokkaido Prefecture
Area (km2) 75

Reason(s) for selection A separate window opensCriteria

Selected due to high levels for the criteria 7, and selected by the MARXAN software.

Characteristics A separate window opensReferences

These are the waters in the vicinity of the mouth of the Tokachi River and the mouths of the Tokachi lakes and ponds (Chobushi Pond, Lake Yudonuma, Kimonto Pond, Oikamanai Pond, Horokayanto Pond, and others). The coast of the Tokachi lakes and ponds and vicinity are covered in abundant coastal vegetation, and they constitute an important habitat for creatures that come and go between the lakes and ponds and the sea (Spirinchus lanceolatus, icefish, and others) and creatures inhabiting brackish water (Asian clam and others). They also serve as a transit point for numerous migratory birds. This zone constitutes a very important shore because of the way the connection between sandy beaches, sand dunes, and lagoons is preserved here in its natural state. It also is a pacific herring spawning grounds, and Hucho perryi have been recorded here. In addition, numerousBrachyramphus marmoratus and other rare species have been recorded here. It also is visited by sand martin, slaty-backed gull, little-ringed plover, kentish plover, and others (Ministry of the Environment, 2001).

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2)
Moba (seaweed bed) (km2)
Coral reef coverage (km2)
Natural coast (km) 27.5
Rate of natural coast (%) 91.7
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
Erignathus barbatus (Bearded Seal)
Riparia riparia (Sand Martin)
Criteria 2
Apus pacificus (Pacific Swift)[Br/Ne]
Larus schistisagus (Slaty-backed Gull)
Larus schistisagus (Slaty-backed Gull)[Br/Ne]
Charadrius dubius (Little Ringed Plover)[Br/Ne]
Riparia riparia (Sand Martin)[Br/Ne]
Charadrius alexandrinus (Kentish Plover)[Br/Ne]
Larus ridibundus (Black-headed Gull)
Sebastes schlegelii (Korean rockfish)[Sp]
Gadus macrocephalus (Pacific cod)[Sp]
Criteria 3
Podiceps cristatus (Great Crested Grebe)
Anguilla japonica (Japanese eel)
Criteria 7
Gastersosteus aculeatus aculeatus (Three-spined stickleback)
<Vascular Plants>
Zostera japonica

* This is the species list of which meet the criteria. In that matter, this list does not include all species that inhabit the individual area.
Abbreviation in the information is as follows.
[Br/Ne] : Adjacent water of breeding area or nesting site
[Sp] : spawning area
[Ad] : species not used for analysis but add to the list because inhabit information was collected later
[Ex] : species used for analysis but considered to be possibly extinct in the EBSA region (area)
No mark : data of species distribution


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