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Coastal Area 12901 Western Suruga Bay, Cape Omae, Enshu Sea coast

Basic Information A separate window opensReferences

Relevant municipalities Yoshida, Kosai, Suruga Ward (Shizuoka), Yaizu, Nishi Ward (Hamamatsu), Fukuroi, Minami Ward (Hamamatsu), Iwata, Makinohara, Kakegawa, Omaezaki, Shizuoka Prefecture
Area (km2) 482

Reason(s) for selection A separate window opensCriteria

Selected due to high levels for the criteria 2, 5, 7 and 8, and selected by MARXAN software.

Characteristics A separate window opensReferences

These are the waters from the vicinity of the mouth of the Abe River through Cape Omae to just before Cape Irago. In the vicinity of the mouth of the Abe River and the mouth of the Ohi River are riverbed ecosystems unique in the Japanese archipelago. Luciogobius fonticola have been discovered in the area of the mouth of the Abe River, and so far these have been discovered only in the riverbed water of the mouths of the Abe River and the Ohi River. In the riverbed waters in the areas of the mouth of the Ohi River unique endemic groundwater organisms can be seen such as Phreatodytes haibaraensis and others. In addition, numerous migratory animals (Japanese eel, ayu, freshwater goby, dusky tripletooth goby, freshwater prawn and others) live in both rivers, and the mouth areas are where the fry and young of these species pass from the sea to the rivers (Kanekawa and Sakai, 2009; Kato et al., 2010). In addition, the coast from the mouth of the Oi River to the Sea of Enshu is important as the waters in front of a loggerhead turtle spawning ground (Kamezaki, 2012; 2013, Omotehama Network, 2008; Tanaka, 2013 ). The shore zone from the mouth of the Tenryu River to the tip of the Atsumi Peninsula is home to extensive continuous sandy beach ecosystems interspersed with river mouth areas, important as a typical representative of sandy beach ecosystems in Japan in light of its size and for other reasons (Suda, personal communication). Among these sandy beach ecosystems, only the coast in the vicinity of Cape Omae is home to seaweed communities consisting mainly of kombu kelp and Sargassum fulvellum (Ministry of the Environment, 2001). The sandy beach ecosystems of these waters have been confirmed to be inhabited by many species endemic to coastal regions, including Intybia takaraensis, Idisia ornata, and Aphela gotoi as genuine coastal insects and Hypocaccus varians, Trichiorhyssemus asperulus and others as species that frequent the coast (Sunose et al., 1999).

Environment / Habitat infromation A separate window opensData source

Tidal mud flats (km2) 0.6
Moba (seaweed bed) (km2) 66.3
Coral reef coverage (km2)
Natural coast (km) 63.3
Rate of natural coast (%) 30.1
Sand bank / submerged sand bank
Other habitats

Species information (*) A separate window opensData source

Criteria 1
Paralomis cristata
<Bivalva, Gastropoda>
Meretrix lusoria
<Other invertebrate>
Halla okudai
Criteria 2
Monticola solitarius (Blue Rock-thrush)[Br/Ne]
Larus schistisagus (Slaty-backed Gull)
Larus schistisagus (Slaty-backed Gull)[Br/Ne]
Calonectris leucomelas (Streaked Shearwater)
Calonectris leucomelas (Streaked Shearwater)[Br/Ne]
Phalacrocorax carbo (Great Cormorant)[Br/Ne]
Sterna albifrons (Little Tern)
Sterna albifrons (Little Tern)[Br/Ne]
Charadrius dubius (Little Ringed Plover)[Br/Ne]
Charadrius alexandrinus (Kentish Plover)[Br/Ne]
Falco peregrinus (Peregrine Falcon)[Br/Ne]
Pandion haliaetus (Osprey)[Br/Ne]
Caretta caretta (Loggerhead Turtle)
Ammodytes personatus (Japanese sand lance)[Sp]
Parapristipoma trilineatum (Chicken grunt)[Sp]
Seriola quinqueradiata (Japanese amberjack)[Sp]
Trachurus japonicus (Japanese jack mackerel)[Sp]
Sardinops melanostictus (Japanese pilchard)[Sp]
Amphioctopus fangsiao (Ocellated octopus)
Octopus vulgaris (Common octopus)
Loligo bleekeri (Spear squid)
Criteria 3
Sterna albifrons (Little Tern)
Anguilla japonica (Japanese eel)
Glossogobius aureus (Golden Flathead Goby)
Leucopsarion petersii (Ice goby )
Cicindela laetescripta
<Bivalva, Gastropoda>
Littorina brevicula
Meretrix lusoria
<Other invertebrate>
Halla okudai
<Vascular Plants>
Suaeda malacosperma
Criteria 4
Calonectris leucomelas (Streaked Shearwater)
Criteria 7
Caretta caretta (Loggerhead Turtle)
Luciogobius guttatus (Flat-headed goby)
<Bivalva, Gastropoda>
Umbonium moniliferum
Meretrix lusoria
Cerithideopsilla cingulata
Moerella rutila
<Other invertebrate>
Anelassorhyncus mucosus
<Vascular Plants>
Aster tripolium (Sea aster)
Triglochin asiaticum
Suaeda malacosperma
Artemisia fukudo
Criteria 8
<Natural Monuments>
Spawning grounds of Loggerhead Turtle (Caretta caretta) at Omaezaki-beach <Omaezaki no umigame oyobi sono sanranchi (in Japanese)>

* 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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