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Location Antarctica
Central coordinates 64o 48.00' West  62o 0.00' South
IBA criteria A1
Area 46,716 ha
Year of IBA assessment 2012

Site description This Marine IBA is identified using tracking data. It falls within the Antarctica Exclusive Economic Zone (EEZ) and the Atlantic, Antarctic FAO ocean region. The site covers an area of 467 km2 and is 168 km away from the closet coastline. The depth ranges from 2401 to 4000 m, mean annual sea surface temperature falls between 0.4 and 0.57 °C and mean annual chlorophyll-a concentrations found to range between 0.17 and 0.18 mg/m3.

Key Biodiversity 1 species triggers IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 3093-3788 individuals of Grey-headed Albatross (VU) from Islas Diego Ramirez are present at the site during the Brood-guard (Dec-Jan) life-history stage.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Grey-headed Albatross Thalassarche chrysostoma brood-guard  2000  3,093-3,788 individuals  A1  Endangered 


IUCN habitat Habitat detail Extent (% of site)
Sea   100%

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Atlantic, Antarctic 13 - Marine. Downloaded from on 29/10/2016

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