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Coastal Area 14407 Adjacent waters of Yakushima Island

Basic Information A separate window opensReferences

Relevant municipalities Yakushima, Kagoshima Prefecture
Area (km2) 326

Reason(s) for selection A separate window opensCriteria

Selected due to high levels for the criteria 7 and 8, and selected by MARXAN software.

Characteristics A separate window opensReferences

These are the coastal waters of Yakushima Island. The sandy beaches and shallow waters on the west side of Yakushima are the beaches with the highest density of loggerhead turtle spawning in the northern Pacific, and they also may be breeding grounds for loggerhead turtles (Kamezaki, 2012). There is a very high diversity of coral species in the vicinity of Kurio and Tsukazaki on the south side of Yakushima Island. In addition, mangroves grow at the mouth of the Kurio River, which is habitat to Kandelia obovata as well. This is a rare site where mangroves are distributed and geographically rare as a mangrove forest as well (Ministry of the Environment, 2001). Yakushima also is home to very diverse species of fish. This is a very important region due to its remarkably high diversity of coastal fish in the area where the Kuroshio Current flows and due to its importance for a biogeographical understanding of the Kuroshio Current on the spread and separation of fish species (Motomura and Matsuura, 2010; Matsunuma et al., 2011; Yoshida et al., 2011; Motomura and Aizawa, 2011; Murase et al., 2011; Matsuura, 2012). At the northeastern tip of Yakushima, Inakahama, and Nagatahama there are gently shelving shallow sandy beaches where shellfish typical of sandy beach ecosystems, such as Cyclosunetta concinna, Dosinia juvenilis, and others are plentiful (Kato, personal communication).

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2)
Moba (seaweed bed) (km2)
Coral reef coverage (km2) 0.6
Natural coast (km) 130.2
Rate of natural coast (%) 89.7
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
<Bivalva, Gastropoda>
Angustassiminea castanea
Criteria 2
Monticola solitarius (Blue Rock-thrush)[Br/Ne]
Phalacrocorax capillatus (Japanese Cormorant)
Phalacrocorax capillatus (Japanese Cormorant)[Br/Ne]
Egretta sacra (Pacific Reef-egret)[Br/Ne]
Chelonia mydas mydas (Green Turtle)
Caretta caretta (Loggerhead Turtle)
Engraulis japonicus (Japanese anchovy)[Sp]
Scomber australasicus (Blue mackerel)[Sp]
Seriola quinqueradiata (Japanese amberjack)[Sp]
Trachurus japonicus (Japanese jack mackerel)[Sp]
Sardinops melanostictus (Japanese pilchard)[Sp]
Scomber japonicus (Chub mackerel)[Sp]
Criteria 3
Cicindela anchoralis
Criteria 7
Chelonia mydas mydas (Green Turtle)
Caretta caretta (Loggerhead Turtle)

* 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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