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Location High Seas
Central coordinates 51o 19.50' West  43o 12.75' South
IBA criteria A1
Area 2,299,284 ha
Year of IBA assessment 2012

Site description This Marine IBA is identified using tracking data. It falls within High Seas International Waters and the Atlantic, Southwest FAO ocean region. The site covers an area of 22993 km2 and is 671 km away from the closet coastline. The depth ranges from 5458 to 5857 m, with a mean annual wind speed of 2.62 m/s, mean annual sea surface temperature falls between 12.77 and 14.61 °C and mean annual chlorophyll-a concentrations found to range between 0.53 and 0.84 mg/m3.

Key Biodiversity 1 species triggers IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 13931-17413 individuals of Black-browed Albatross (EN) from South Georgia are present at the site during the Incubation (Sep-Dec) life-history stage.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Black-browed Albatross Thalassarche melanophris incubation  1996  13,931-17,413 individuals  A1  Near Threatened 


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, Southwest 40 - Marine. Downloaded from on 22/10/2016

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