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Coastal Area 15701 Tsushima islands

Basic Information A separate window opensReferences

Relevant municipalities Tsushima, Nagasaki Prefecture
Area (km2) 445

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 southern Tsushima Island and the eastern side of northern Tsushima Island, Nagasaki Prefecture. Due to the effects of the Tsushima Current, Tsushima is distinguished by having warmer temperatures than the opposite shores at roughly the same latitude on the Korean Peninsula and in Russia, and by sharing many species with the Eurasian continent. Aso Bay and Tsutsu Bay in central Tsushima are home to continuous mild ria coastlines. As a result, Aso Bay includes habitats of the rare species Asclepios shiranui, Halobates matsumurai, and Halovelia septentrionalis. Coral reefs have formed in Tsunaura, together with Iki marking the area of the northern limit of coral reefs (Ministry of the Environment, 2001).

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2) 0.7
Moba (seaweed bed) (km2) 15.3
Coral reef coverage (km2) 0.1
Natural coast (km) 773.4
Rate of natural coast (%) 85.6
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
<Bivalva, Gastropoda>
Angustassiminea castanea
Cassidula plecotrematoides japonica
Corbicula japonica
Criteria 2
Pandion haliaetus (Osprey)[Br/Ne]
Branchiostegus japonicus (Horsehead tilefish)[Sp]
Trichiurus japonicus (Largehead hairtail)[Sp]
Trachurus japonicus (Japanese jack mackerel)[Sp]
Sardinops melanostictus (Japanese pilchard)[Sp]
Scomber japonicus (Chub mackerel)[Sp]
Pagrus major (Red seabream)[Sp]
Sepioteuthis lessoniana (Bigfin Reef Squid)
Loligo edulis (Swordtip squid)
Todarodes pacificus (Japanese flying squid)
Criteria 3
Anguilla japonica (Japanese eel)
Asclepios shiranui
Halobates matsumurai
<Bivalva, Gastropoda>
Melampus sincaporensis
<Vascular Plants>
Suaeda malacosperma
Criteria 7
Luciogobius guttatus (Flat-headed goby)
<Bivalva, Gastropoda>
Corbicula japonica
<Vascular Plants>
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


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