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Location Antarctica
Central coordinates 70o 22.45' West  66o 7.41' South
IBA criteria A1
Area 211,576 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 Pacific, Antarctic FAO ocean region. The site covers an area of 2116 km2 and is 124 km away from the closet coastline. The depth ranges from 267 to 2186 m, mean annual sea surface temperature falls between 0.27 and 0.56 °C and mean annual chlorophyll-a concentrations found to range between 0.45 and 0.8 mg/m3.

Key Biodiversity 1 species triggers IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 3093-5459 individuals of Grey-headed Albatross (VU) from Islas Diego Ramirez are present at the site during the Post-guard (Feb-May) 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 post-guard  2001  3,093-5,459 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: Pacific, Antarctic 2 - Marine. Downloaded from on 26/10/2016

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