Indian Ocean, Western 31 - Marine (30557)
High Seas, High Seas
Site overview
KBA status: confirmed
Global KBA criteria: A1b, D1a
Year of last assessment: 2012
National site name: Indian Ocean, Western 31 - Marine
Central coordinates: Latitude: 13.9000, Longitude: 66.0000
System: marine
Area of KBA (km2): 160042.88409
KBA classification: Global
Legacy site: Yes
Site details
Site description: This Marine IBA is identified using tracking data. It falls within High Seas International Waters and the Indian Ocean, FAO ocean region. The site covers an area of 160043 km2 and is 620 km away from the closet coastline. The depth ranges from 3498 to 4361 m, with a mean annual wind speed of 1.78 m/s, mean annual sea surface temperature falls between 27.02 and 28.2 °C and mean annual chlorophyll-a concentrations found to range between 0.17 and 0.94 mg/m3.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs.
Additional biodiversity: 1 species triggers IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 244-355 individuals of Trindade Petrel (Round Island Petrel) (VU) from Round Island are present at the site during the Non-breeding (Year-Round) life-history stage.
Delineation rationale: Site identified by analysis of tracking dataset(s) - rip_rnd_nb
Habitats
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Marine Neritic | 100 |