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Coastal Area 17501 Ishikari Bay

Basic Information A separate window opensReferences

Relevant municipalities Otaru, Ishikari, Mashike, Hokkaido Prefecture
Area (km2) 1124

Reason(s) for selection A separate window opensCriteria

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

Characteristics A separate window opensReferences

These waters include Ishikari Bay. The sand beds in the bay at depths of up to 50 m are spawning grounds for flounder and Pacific herring and habitat for Japanese sand lance, Oratosquilla oratoria, Japanese squid and others as well, and they are highly productive (Zengyoren engan gyojyou kaihatu taisaku-shitu, 1977). Habitat for Asian clam and others is found at Ishikarihama and the area of the mouth of the Ishikari River where it flows into central Ishikari Bay (Ministry of the Environment, 2001). Ishikari Bay also is fringed by daimyo oak woods and sand dunes, with expansive sandy beaches, where Japanese north fairy shrimp appear in the pools that form in the sand dunes. In the subtidal zone of the sandy beaches live Gomphina melanegis, Chinese mactra, Northern great tellin, Sakhalin surf clam, and others. These sandy beaches are known to be habitats for diverse interstitial animals (Ito, 1985). In addition, in the vicinity of the mouth of the Ishikari River a relatively good combination of natural environments is maintained, with wetlands and sandy beaches downstream, natural meadows, and daimyo oak woods atop the coastal terraces. This is an important habitat for insect species as well, with Cicindela laetescripta and others confirmed to live here (Ishii et al., 2002).

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2)
Moba (seaweed bed) (km2) 8.1
Coral reef coverage (km2)
Natural coast (km) 77.9
Rate of natural coast (%) 52
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
Phoca largha (Larga Seal (Spotted Seal))
Eumetopias jubatus (Steller's Sea-lion)
Riparia riparia (Sand Martin)
Criteria 2
Apus pacificus (Pacific Swift)[Br/Ne]
Monticola solitarius (Blue Rock-thrush)[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]
Charadrius dubius (Little Ringed Plover)[Br/Ne]
Riparia riparia (Sand Martin)[Br/Ne]
Larus argentatus (European Herring Gull)
Falco peregrinus (Peregrine Falcon)[Br/Ne]
Ammodytes personatus (Japanese sand lance)[Sp]
Sebastes schlegelii (Korean rockfish)[Sp]
Theragra chalcogramma (Alaska pollock)[Sp]
Hippoglossoides pinetorum (S?hachi)[Sp]
Clupea pallasii (Pacific herring)[Sp]
Arctoscopus japonicus (Japanese sandfish)[Sp]
Criteria 3
Synthliboramphus antiquus (Ancient Murrelet)
Cepphus carbo (Spectacled Guillemot)
Phalacrocorax pelagicus (Pelagic Cormorant)
Cicindela laetescripta
Criteria 4
Cerorhinca monocerata (Rhinoceros Auklet)

* 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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