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MOE home > Nature and Parks > EBSA home > Coastal Area > 15901 Adjacent waters of Hitsushima and Oshima islands


Coastal Area 15901 Adjacent waters of Hitsushima and Oshima islands

Basic Information A separate window opensReferences

Relevant municipalities Hagi, Yamaguchi Prefecture
Area (km2) 15

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 waters in the vicinity of Hitsushima and Oshima Islands off the coast of the city of Hagi, Yamaguchi Prefecture. Hitsushima and Ohshima Islands used to be parts of the village of Rokuto (“six islands:” Ainoshima, Hagi, Oshima, Hajima, Hishima, and Ohshima). These waters include the spawning grounds of multiple fish and other species.

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2)
Moba (seaweed bed) (km2) 0.9
Coral reef coverage (km2)
Natural coast (km) 9.9
Rate of natural coast (%) 84.7
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 2
Branchiostegus japonicus (Horsehead tilefish)[Sp]
Engraulis japonicus (Japanese anchovy)[Sp]
Trichiurus japonicus (Largehead hairtail)[Sp]
Seriola quinqueradiata (Japanese amberjack)[Sp]
Trachurus japonicus (Japanese jack mackerel)[Sp]
Sardinops melanostictus (Japanese pilchard)[Sp]
Sepioteuthis lessoniana (Bigfin Reef Squid)
Loligo edulis (Swordtip squid)
Todarodes pacificus (Japanese flying squid)
Octopus vulgaris (Common octopus)
Criteria 7
<Bivalva, Gastropoda>
Truncatella pfeifferi
<Vascular Plants>
Aster tripolium (Sea aster)
Triglochin asiaticum

* 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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