Nanatsujima islets - Marine (30667)
Japan, Asia
Site overview
KBA status: confirmed
Year of last assessment: 2012
National site name: Nanatsujima islets - Marine
Central coordinates: Latitude: 37.6000, Longitude: 136.9000
System: marine
Area of KBA (km2): 200.80982
Protected area coverage (%): 75.71
KBA classification: Global/Regional TBD
Legacy site: Yes
Site details
Site description: This Marine IBA is identified using seaward extensions around breeding colonies. It originates from the Japan Exclusive Economic Zone (EEZ) and falls within the Pacific, Northwest FAO ocean region. The site covers an area of 201 km2 and is 22 km away from the closet coastline. The depth ranges from 5 to 120 m, mean annual sea surface temperature falls between 17.49 and 17.64 °C and mean annual chlorophyll-a concentrations found to range between 0.55 and 0.63 mg/m3.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance because it meets one or more previously established criteria and thresholds for identifying sites of biodiversity importance (including Important Bird and Biodiversity Areas, Alliance for Zero Extinction sites, and Key Biodiversity Areas)
Additional biodiversity: 1 species triggers IBA criteria at this Marine IBA. Seaward extensions around breeding colony; Nanatsujima islets include key near-colony areas for breeding populations of Japanese Murrelet (VU).
Delineation rationale: Site identified by applying a colony extension to SitRecId - 15153
Habitats
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Marine Neritic | 100 |