|Central coordinates||58o 38.71' West 43o 4.78' South|
|IBA criteria||A1, A4ii, A4iii|
|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 3397 km2 and is 406 km away from the closet coastline. The depth ranges from 1039 to 2000 m, mean annual sea surface temperature falls between 8.04 and 8.67 °C and mean annual chlorophyll-a concentrations found to range between 0.46 and 1.18 mg/m3.
Key Biodiversity 2 species trigger IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 1534-1342 individuals of Wandering Albatross (VU) from South Georgia are present at the site during the Sabbatical (Oct-May) life-history stage. 2500000-900000 individuals of Great Shearwater (LC) from Tristan da Cunha Islands are present at the site during the Non-breeding (Jan-Mar) life-history stage.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Wandering Albatross Diomedea exulans||sabbatical (non-breeding)||2003||1,342-1,534 individuals||-||A1, A4ii||Vulnerable|
|Great Shearwater Ardenna gravis||non-breeding||2006||900,000-2,500,000 individuals||-||A4ii||Least Concern|
|A4iii Species group - seabirds||non-breeding||-||901,342-2,501,534 individuals||-||A4iii|
|IUCN habitat||Habitat detail||Extent (% of site)|
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Atlantic, Southwest 28 - Marine. Downloaded from http://www.birdlife.org on 22/10/2016
To provide new information to update this factsheet or to correct any errors, please email BirdLife