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MOE home > Nature and Parks > EBSA home > Coastal Area > 11505 Adjacent waters of Koipekawa River mouth


Coastal Area 11505 Adjacent waters of Koipekawa River mouth

Basic Information A separate window opensReferences

Relevant municipalities Higashidori, Aomori Prefecture
Area (km2) 10

Reason(s) for selection A separate window opensCriteria

Selected by MARXAN software

Characteristics A separate window opensReferences

These are the waters in the vicinity of the mouth of the Koipekawa River. Like the vicinity of Cape Shiriya (11504), this coast is a massive belt of sand dunes interspersed with numerous coastal lagoons. The coastal lagoons and their vicinity are a treasure trove of marsh plants and seashore insects (Laccophilus kobensis, Rhantus erraticus, Graphoderus adamsii, the predaceous diving beetle, Dytiscus marginalis czerski, and others). Various seaside insects (Nabis ferus, Cicindela laetescripta, Ceropales shizukoae, Bembix niponica, and Colletes yasumatsui) have been confirmed to live in the sand dunes as well (Ministry of the Environment, 2001). This zone, which has been struck by tsunami numerous times over its history, retains its natural lagoons and coastal lagoons and is home to a valuable sandy beach ecosystem that has been retained over the long term.

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2)
Moba (seaweed bed) (km2) 1.2
Coral reef coverage (km2)
Natural coast (km) 6.6
Rate of natural coast (%) 86.6
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 2
Ammodytes personatus (Japanese sand lance)[Sp]
Sebastes schlegelii (Korean rockfish)[Sp]
Octopus vulgaris (Common octopus)
Criteria 3
Gasterosteus sp. (Three-spined stickleback)
Cottus hangiongensis
Gymnogobius petschiliensis
Criteria 7
Luciogobius guttatus (Flat-headed goby)

* 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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