MOE home > Nature and Parks > EBSA home > Coastal Area > 13902 Adjacent waters of Okitsu, Shimanto River mouth
Relevant municipalities | Kuroshio, Shimanto City, Shimanto Town, Kochi Prefecture |
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Area (km2) | 102 |
Selected due to high levels for the criteria 1and 3, and selected by MARXAN software.
These waters extend from Cape Okitsu in Kochi Prefecture along Cape Ino to the area of the mouth of the Shimanto River. The sandy beaches of Okitsu are gently shelving shallow sandy beaches where creatures typical of sandy beach ecosystems, such as Latona cuneata, Gomphina semicancellata, Cyclosunetta menstrualis, and others can be seen in abundance (Kato, 1999). The Shimanto River mouth is a habitat for Zostera japonica, and communities of green laver are visible here as well. In the mouth area habitation by Japanese lates, mangrove red snappers, and mudskippers has been confirmed. In addition, it also is habitat for fiddler crabs (Ministry of the Environment, 2001). In addition, one of the two pods of Bryde's whale in the vicinity of Japan is distributed in these waters (Hattori, Yamamura, 2014a).
Tidal mud flats (km2) | 0.101 |
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Moba (seaweed bed) (km2) | 5 |
Coral reef coverage (km2) | |
Natural coast (km) | 32.9 |
Rate of natural coast (%) | 54.8 |
Sand bank / submerged sand bank | |
Other habitats |
Criteria 1 |
<Pisces> |
Lates japonicus (Japanese lates) |
Cottus kazika (Fourspine sculpin) |
Lateolabrax latus (Blackfin seabass) |
<Bivalva, Gastropoda> |
Angustassiminea castanea |
Stenomelania rufescens |
Meretrix lusoria |
Assiminea parasitologica |
Corbicula japonica |
Angustassiminea yoshidayukioi |
Criteria 2 |
<Mamal> |
Balaenoptera edeni (Bryde's whale) |
<Aves> |
Charadrius dubius (Little Ringed Plover)[Br/Ne] |
Pandion haliaetus (Osprey)[Br/Ne] |
<Reptilia> |
Caretta caretta (Loggerhead Turtle) |
<Pisces> |
Parapristipoma trilineatum (Chicken grunt)[Sp] |
Etrumeus teres (Red-eye round herring)[Sp] |
Engraulis japonicus (Japanese anchovy)[Sp] |
Seriola quinqueradiata (Japanese amberjack)[Sp] |
Trachurus japonicus (Japanese jack mackerel)[Sp] |
Criteria 3 |
<Pisces> |
Lates japonicus (Japanese lates) |
Anguilla japonica (Japanese eel) |
Cottus kazika (Fourspine sculpin) |
Gymnogobius scrobiculatus |
Leucopsarion petersii (Ice goby ) |
Apocryptodon punctatus |
Nematalosa japonica (Japanese gizzard shad) |
Butis amboinensis (Olive flathead-gudgeon) |
Cottus pollux (Japanese fluvial sculpin ) |
<Crustacea> |
Helice (Helice) tridens |
Deiratonotus cristatus |
Parasesarma plicatum |
Ilyoplax pusilla |
Sesarmops intermedium |
<Bivalva, Gastropoda> |
Stenomelania rufescens |
Auriculastra duplicata |
Criteria 7 |
<Reptilia> |
Caretta caretta (Loggerhead Turtle) |
<Pisces> |
Luciogobius guttatus (Flat-headed goby) |
<Bivalva, Gastropoda> |
Clithon sowerbianus |
Stenomelania rufescens |
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