MOE home > Nature and Parks > EBSA home > Coastal Area > 12802 Izu Peninsula coast
Relevant municipalities | Manazuru, Kanagawa Prefecture; Ito, Izu, Shimoda, Kawazu, Matsuzaki, Numazu, Nishi-Izu, Higashi-Izu, Minami-Izu, Atami, Shizuoka Prefecture |
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Area (km2) | 951 |
Selected due to high levels for the criteria 1, 4 and 5, and selected by MARXAN software.
These waters extend along the coast of the Izu Peninsula from the southern Manazuru Peninsula to the mouth of the Kano River in Suruga Bay. Off the coast in the vicinity of Hatsushima Is. are communities of Pterocladia capillacea, Gelidium pacificum, Gelidium elegans, Gelidium japonicum, and agar (Ministry of the Environment, 2001). Off the Nishikigaura coast in the city of Atami are waters with a high degree of diversity of species, including rare gobies such as Vanderhorstia auropunctata, Vanderhorstia macropteryx, Cryptocentrus shigensis, and others, as well as Maroubra yasudai. The waters off the Jogasaki coast centered on the Izu Oceanic Park have a remarkably high degree of diversity of species, including rare species such as Maroubra yasudai, Pseudanthias leucozonus, Pseudotrichonotus altivelis and others. Off the coast of the southeast Izu Peninsula (from Shirahama to Touji) are seaweed communities, mostly kombu kelp and Sargassum fulvellum, as well as Ecklonia cava, species highly similar to Sargassum siliquastrum, Sargassum piluliferum, Eisenia bicyclis%, Ecklonia cava, and others (Ministry of the Environment, 2001). In addition, Oura Bay is home to the westernmost seaweed beds in Sagami Bay as well as a central location in the distribution of warm-water seaweed, and a habitat for rare species of fish that live at the sandy sea floor, including Matsubaraea fusiforme, Silhouettea dotui, and others (Seno et al., 1997; Senou et al., 2006; Seno and Matsuura, 2007; Takeuchi et al., 2012a ; Takeuchi et al., 2012b; Kanagawa Prefectural Museum of Natural History, eds., 2013). The seaweed beds off the southern Izu Peninsula are feeding waters for green turtle (Suganuma et al., 2010), and there is a high diversity of coral species in the waters near Izu Hirizo Beach, Tondai, and the Port of Nakagi in the town of Minamiizu, Kamo-gun (Ministry of the Environment, 2001). Among the number of islands in the south, the waters of Mikomoto Island are home to a breeding colony of Japanese murrelet (an IUCN endangered species) (BirdLife International, 2012). The waters off the coast from Ugusu through Cape Kogane to Arari are highly diverse in fish species, including Blenniidae, gobies and others. The waters off Cape Ose, like those off the Jogasaki coast, are among the waters of the Izu Peninsula that have a remarkably high degree of diversity of species, including numerous rare species such as Maroubra yasudai, Pseudanthias leucozonus, Pseudotrichonotus altivelis, and others (Seno et al., 1997; Senou et al., 2006; Seno and Matsuura, 2007; Takeuchi et al., 2012a ; Takeuchi et al., 2012b; Kanagawa Prefectural Museum of Natural History, eds., 2013), and in the river mouth area in the inner bay creatures can be seen that live in brackish water, such as flat-headed goby and others (Kato, personal communication). Eura Bay is a rare habitat for Acropora tumida (Acropora pruinosa), once plentiful but now greatly reduced in number (Nanto et al, 2009).
Tidal mud flats (km2) | |
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Moba (seaweed bed) (km2) | 46.7 |
Coral reef coverage (km2) | 0 |
Natural coast (km) | 225.5 |
Rate of natural coast (%) | 64.8 |
Sand bank / submerged sand bank | |
Other habitats |
Criteria 1 |
<Pisces> |
Oxynotus japonicus (Japanese roughshark) |
Cottus kazika (Fourspine sculpin) |
Melanostigma orientale |
Parabrotula tanseimaru |
Lateolabrax latus (Blackfin seabass) |
Bassozetus zenkevitchi |
Apogon fukuii |
<Crustacea> |
Metacrangon tropis |
Trizocheles albatrossae |
Richardina rupicola |
Majella brevipes |
Ambiaxiopsis altimanus |
Munidopsis camelus |
Paralomis cristata |
Rochinia debilis |
<Bivalva, Gastropoda> |
Stenothyra edogawensis |
Angustassiminea castanea |
Stenomelania rufescens |
Corbicula japonica |
<Other invertebrate> |
Anoplodactylus excelsus |
Anoplodactylus gestiens |
Anoplodactylus imperialis |
Anoplodactylus lagenus |
Anoplodactylus shimodaensis |
Ascorhynchus okai |
Ascorhynchus utinomii |
Chonothea hians |
Cilunculus haradai |
Cilunculus sekiguchii |
Nymphon ortmanni |
Pycnogonum tenue |
<Octocorallia> |
Acanthogorgia paradoxa |
Anthoplexaura dimorpha |
Pennatula rubescens |
Criteria 2 |
<Aves> |
Apus pacificus (Pacific Swift)[Br/Ne] |
Monticola solitarius (Blue Rock-thrush)[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] |
Egretta sacra (Pacific Reef-egret)[Br/Ne] |
Falco peregrinus (Peregrine Falcon)[Br/Ne] |
Pandion haliaetus (Osprey)[Br/Ne] |
<Pisces> |
Parapristipoma trilineatum (Chicken grunt)[Sp] |
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] |
<Cephalopoda> |
Sepioteuthis lessoniana (Bigfin Reef Squid) |
Loligo bleekeri (Spear squid) |
Criteria 3 |
<Pisces> |
Narke japonica |
Anguilla japonica (Japanese eel) |
Cottus kazika (Fourspine sculpin) |
Gymnogobius scrobiculatus |
Cottus pollux (Japanese fluvial sculpin ) |
<Bivalva, Gastropoda> |
Stenomelania rufescens |
Criteria 4 |
<Octocorallia> |
Acanthogorgia paradoxa |
Anthoplexaura dimorpha |
Callogorgia aspera |
Dendronephthya acaulis |
Dendronephthya magnacantha |
Dendronephthya maxima |
Euplexaura curvata |
Melithaea dichotoma |
Muricella abnormalis |
Pennatula rubescens |
Placogorgia japonica |
Plumarella adhaerens |
Thesea mitsukurii |
Criteria 7 |
<Pisces> |
Luciogobius guttatus (Flat-headed goby) |
<Bivalva, Gastropoda> |
Stenomelania rufescens |
Truncatella pfeifferi |
Corbicula japonica |
* 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