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MOE home > Nature and Parks > EBSA home > Coastal Area > 11507 Coast of Ogawahara Lagoons


Coastal Area 11507 Coast of Ogawahara Lagoons

Basic Information A separate window opensReferences

Relevant municipalities Misawa, Rokkasho, Aomori Prefecture
Area (km2) 25

Reason(s) for selection A separate window opensCriteria

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

Characteristics A separate window opensReferences

These are the coastal waters of the Ogawahara lakes and marshes. In the area of the mouth of Lake Obuchinuma and the lagoons in its vicinity can be seen salt-water marshes, and Halerpestes kawakamii are a characteristic feature specific to the Pacific coast of the northeastern region. While some lagoons have been turned into freshwater bodies by weirs at their mouths, Lake Obuchinuma remains a natural lagoon teeming with Asian clam, Potamocorbula amurensis, Macoma takahokoensis (while these were listed under Takahoko Swamp, they are extinct since the swamp has been overtaken by fresh water), grass shrimp, and others. The waters of Lake Obuchinuma have been home to large numbers of Pacific herring since the Edo Period and, as a spawning ground, are still visited by Pacific herring (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) 12.2
Rate of natural coast (%) 67.5
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
<Bivalva, Gastropoda>
Corbicula japonica
Angustassiminea yoshidayukioi
Criteria 2
Larus crassirostris (Black-tailed Gull)
Larus crassirostris (Black-tailed Gull)[Br/Ne]
Larus schistisagus (Slaty-backed Gull)
Larus schistisagus (Slaty-backed Gull)[Br/Ne]
Phalacrocorax carbo (Great Cormorant)[Br/Ne]
Pandion haliaetus (Osprey)[Br/Ne]
Ammodytes personatus (Japanese sand lance)[Sp]
Sebastes schlegelii (Korean rockfish)[Sp]
Octopus vulgaris (Common octopus)
Criteria 3
Podiceps cristatus (Great Crested Grebe)
Cottus hangiongensis
Cicindela laetescripta
Chiromantes haematocheir
Deiratonotus cristatus
<Bivalva, Gastropoda>
Potamocorbula amurensis
Criteria 7
<Bivalva, Gastropoda>
Corbicula japonica
<Vascular Plants>
Carex rugulosa
Triglochin maritimum
Carex subspathacea

* 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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