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Coastal Area 10101 Sarobetsu coast

Basic Information A separate window opensReferences

Relevant municipalities Wakkanai, Teshio, Toyotomi, Horonobe, Hokkaido Prefecture
Area (km2) 132

Reason(s) for selection A separate window opensCriteria

Selected due to high levels for the criteria 7and 8, and selected by MARXAN software.

Characteristics A separate window opensReferences

This is the coast of the Sarobetsu Plain on the Sea of Japan side of Hokkaido. These waters include spawning grounds of Japanese sand lance, rockfish, Pacific herring, Pacific cod, and others, while spawning grounds of the Alaska pollock, yellow striped flounder, Pacific cod, and others are spread out a little offshore. In addition, in the vicinity of the port of Bakkai in these waters, spotted seals are sighted frequently, and in recent years migrations of Steller sea lions, whose numbers have rebounded, can be seen as well (Sakurai et al., 2013). Asian clams and Hucho perryi have been confirmed to inhabit the vicinity of the mouth of the Teshio River. One distinguishing feature of these waters is the way a primeval environment continues from the shore area. The coastal zone is highly productive, flourishing with kombu kelp and sea urchin fishing.
While a road known as the Ororon Line parallels the straight coastline stretching from the Teshio River to Wakkanai, few private homes and other structures are visible, and the sandy shores are preserved in a highly natural state (the Wakasaka Coast). The Sarobetsu Plain (a wetland listed under the Ramsar Convention) unfolds inland. A primeval environment linking the primeval wetlands with the shore zone spreads across this coastal region.

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2)
Moba (seaweed bed) (km2) 0.7
Coral reef coverage (km2)
Natural coast (km) 57.9
Rate of natural coast (%) 94
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
Phoca largha (Larga Seal (Spotted Seal))
Riparia riparia (Sand Martin)
<Bivalva, Gastropoda>
Corbicula japonica
Criteria 2
Larus crassirostris (Black-tailed Gull)
Larus crassirostris (Black-tailed Gull)[Br/Ne]
Riparia riparia (Sand Martin)[Br/Ne]
Ammodytes personatus (Japanese sand lance)[Sp]
Sebastes schlegelii (Korean rockfish)[Sp]
Clupea pallasii (Pacific herring)[Sp]
Gadus macrocephalus (Pacific cod)[Sp]
Criteria 3
Deiratonotus cristatus
Criteria 7
Gastersosteus aculeatus aculeatus (Three-spined stickleback)

* 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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