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MOE home > Nature and Parks > EBSA home > Coastal Area > 15406 Isahaya, Omura Bay


Coastal Area 15406 Isahaya, Omura Bay

Basic Information A separate window opensReferences

Relevant municipalities Omura, Isahaya, Nagasaki Prefecture
Area (km2) 1

Reason(s) for selection A separate window opensCriteria

Selected due to high levels for the criteria 1and 7, and selected by MARXAN software.

Characteristics A separate window opensReferences

A number of rivers flow into these waters, including the Higashi-Ohkawa River in southeastern Omura Bay. Numerous endangered shellfish species including Angustassiminea castanea, Assiminea yoshidayukioi and others live here.

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2) 0.6
Moba (seaweed bed) (km2) 0.027
Coral reef coverage (km2)
Natural coast (km) 0.9
Rate of natural coast (%) 6.9
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
<Bivalva, Gastropoda>
Angustassiminea castanea
Cassidula plecotrematoides japonica
Assiminea estuarina
Angustassiminea yoshidayukioi
<Vascular Plants>
Suaeda japonica
Criteria 2
Larus ridibundus (Black-headed Gull)
Criteria 3
Podiceps cristatus (Great Crested Grebe)
Cicindela inspecularis
<Bivalva, Gastropoda>
Batillaria zonalis
Ellobium chinense
Pythia cecillei
Melampus sincaporensis
Laemodonta siamensis
Auriculastra duplicata
<Vascular Plants>
Suaeda japonica
Criteria 7
<Bivalva, Gastropoda>
Batillaria zonalis
Truncatella pfeifferi
<Vascular Plants>
Suaeda 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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