Skip the menu

MOE home > Nature and Parks > EBSA home > Coastal Area > 15408 Northern Omura Bay


Coastal Area 15408 Northern Omura Bay

Basic Information A separate window opensReferences

Relevant municipalities Sasebo, Saikai, Kawatana, Higashisonogi, Nagasaki Prefecture
Area (km2) 96

Reason(s) for selection A separate window opensCriteria

Selected by MARXAN software.

Characteristics A separate window opensReferences

These waters include the Harioseto Strait and the Haikiseto Strait connecting Omura Bay with the open sea at the north end of the bay. Since Omura Bay connects to the open sea only through these two narrow straits, the tide flows very fast in this area. The Haikiseto Strait is home to numerous rare shellfish that inhabit tidal mud flats, and saltwater marshlands' Juncaginaceae and Aster tripolium grow here as well. It also is a habitat for fiddler crab. Snipe and plover visit here as well, although in small numbers. Rare shellfish such as Platyvindex sp., Cassidula plecotrematoides and others inhabit Egamiura in the town of Egami, in large numbers. Also numerous here are Protopterus dolloi as well as Hibiscus hamabo and other saltwater marshland plants (Sasebo city, 2013).

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2) 2.4
Moba (seaweed bed) (km2) 3.1
Coral reef coverage (km2)
Natural coast (km) 100.4
Rate of natural coast (%) 40.2
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
<Bivalva, Gastropoda>
Angustassiminea castanea
Criteria 2
Neophocaena phocaenoides (Fineless porpoise)
Apus pacificus (Pacific Swift)[Br/Ne]
Egretta sacra (Pacific Reef-egret)[Br/Ne]
Charadrius dubius (Little Ringed Plover)[Br/Ne]
Branchiostegus japonicus (Horsehead tilefish)[Sp]
Trachurus japonicus (Japanese jack mackerel)[Sp]
Sardinops melanostictus (Japanese pilchard)[Sp]
Scomber japonicus (Chub mackerel)[Sp]
Criteria 3
Anguilla japonica (Japanese eel)
<Vascular Plants>
Suaeda malacosperma
Criteria 7
Luciogobius pallidus
<Bivalva, Gastropoda>
Clithon sowerbianus
<Vascular Plants>
Aster tripolium (Sea aster)
Triglochin asiaticum
Suaeda malacosperma

* 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


Back to the top of this page