Indian Ocean, Antarctic and Southern 15 - Marine


Country/territory: High Seas

IBA criteria met: A1, A4ii (2012)
For more information about IBA criteria, please click here

Area: 664,710 ha


Site description (2012 baseline)
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 6647 km2 and is 557 km away from the closet coastline. The depth ranges from 3714 to 4148 m, mean annual sea surface temperature falls between 3.14 and 4.06 °C and mean annual chlorophyll-a concentrations found to range between 0.19 and 0.23 mg/m3.

Key biodiversity
1 species triggers IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 540-900 individuals of Sooty Albatross (EN) from Iles Crozet are present at the site during the Incubation (Oct-Dec) life-history stage.


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Indian Ocean, Antarctic and Southern 15 - Marine (High Seas). Downloaded from https://datazone.birdlife.org/site/factsheet/indian-ocean-antarctic-and-southern-15--marine-iba-high-seas on 25/11/2024.