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Coastal Area 17401 Shakotan Peninsula

Basic Information A separate window opensReferences

Relevant municipalities Furubira, Otaru, Kamoenai Shakotan, Tomari, Yoichi, Hokkaido Prefecture
Area (km2) 263

Reason(s) for selection A separate window opensCriteria

Selected due to high levels for the criteria 1, 2 and 7, and selected by MARXAN software.

Characteristics A separate window opensReferences

These waters include the entire Shakotan Peninsula (from the vicinity of the mouth of the Chatsu River to Yoichi Bay, Shioya Bay, and the vicinity of Cape Takashima on the northern Shakotan Peninsula). The communities of Laminaria religiosa in the southwestern Sea of Japan in Hokkaido are home to greater diversity of creatures than the sea floors dominated by non-geniculate coralline beds. In recent years, the distributed area of kombu kelp beds has been in a decreasing trend due to rocky-shore denudation, and the extent of these beds is limited to the water's edge, so that they are becoming increasingly rare. In these waters the sea extending in front of the Sakazuki district in the village of Tomari is home to large-scale kombu kelp beds. While generally Laminaria religiosa is an annual, in some spots in this area biennial kombu kelp appears in some years, as a special environment appears to be maintained amid the rocky-shore denudation zone (Ministry of the Environment, 2001). Overall the Shakotan Peninsula retains its natural state to a high degree, and it is a spawning grounds for fish as well. It is abundant in seaweed and serves as a fishing grounds for Okhotsk atka mackerel and others (Zengyoren engan gyojyou kaihatu taisaku-shitu, 1977). Steller sea lion is often confirmed in the vicinity of Cape Kamui, and spotted seals are seen frequently in the vicinity of Cape Kamui and the vicinity of Yoichi Bay (Kitano Umino Doubutu Center, 2004; Sakurai, personal communication).

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2)
Moba (seaweed bed) (km2) 7.1
Coral reef coverage (km2)
Natural coast (km) 112.8
Rate of natural coast (%) 66.5
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
Callorthinus ursinus (Northern Fur Seal)
Histriophoca fasciata (Ribbon Seal)
Phoca largha (Larga Seal (Spotted Seal))
Eumetopias jubatus (Steller's Sea-lion)
Haliaeetus pelagicus (Steller's Sea-eagle)
Salvelinus malma (Dolly varden)
<Other invertebrate>
Carcinactis ichikawai
Criteria 2
Apus pacificus (Pacific Swift)[Br/Ne]
Monticola solitarius (Blue Rock-thrush)[Br/Ne]
Cerorhinca monocerata (Rhinoceros Auklet)
Cerorhinca monocerata (Rhinoceros Auklet)[Br/Ne]
Phalacrocorax capillatus (Japanese Cormorant)
Phalacrocorax capillatus (Japanese Cormorant)[Br/Ne]
Larus crassirostris (Black-tailed Gull)
Larus crassirostris (Black-tailed Gull)[Br/Ne]
Larus schistisagus (Slaty-backed Gull)
Larus schistisagus (Slaty-backed Gull)[Br/Ne]
Cepphus carbo (Spectacled Guillemot)
Cepphus carbo (Spectacled Guillemot)[Br/Ne]
Charadrius dubius (Little Ringed Plover)[Br/Ne]
Puffinus griseus (Sooty Shearwater)
Falco peregrinus (Peregrine Falcon)[Br/Ne]
Pandion haliaetus (Osprey)[Br/Ne]
Larus ridibundus (Black-headed Gull)
Ammodytes personatus (Japanese sand lance)[Sp]
Sebastes schlegelii (Korean rockfish)[Sp]
Theragra chalcogramma (Alaska pollock)[Sp]
Hippoglossoides pinetorum (S?hachi)[Sp]
Arctoscopus japonicus (Japanese sandfish)[Sp]
Pleurogrammus azonus (Okhotsk atka mackerel)[Sp]
Gadus macrocephalus (Pacific cod)[Sp]
Loligo bleekeri (Spear squid)
Criteria 3
Cepphus carbo (Spectacled Guillemot)
Histrionicus histrionicus (Harlequin Duck)
Carcharodon carcharias
Salvelinus malma (Dolly varden)
Lethenteron japonicum (Japanese lamprey)
Criteria 4
Cerorhinca monocerata (Rhinoceros Auklet)
Criteria 7
Lethenteron japonicum (Japanese lamprey)
<Vascular Plants>
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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