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Location High Seas
Central coordinates 83o 57.00' West  57o 48.00' South
IBA criteria A1
Area 132,487 ha
Altitude
Year of IBA assessment 2012





Site description This Marine IBA is identified using tracking data. It falls within High Seas International Waters and the Pacific, Southeast FAO ocean region. The site covers an area of 1325 km2 and is 836 km away from the closet coastline. The depth ranges from 4756 to 5630 m, mean annual sea surface temperature falls between 4.52 and 4.69 °C and mean annual chlorophyll-a concentrations found to range between 0.15 and 0.17 mg/m3.

Key Biodiversity 1 species triggers IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 3222-5156 individuals of Grey-headed Albatross (VU) from Islas Diego Ramirez are present at the site during the Incubation (Oct-Dec) 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 incubation  1997  3,222-5,156 individuals  A1  Endangered 

Habitats

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

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Pacific, Southeast 31 - Marine. Downloaded from http://www.birdlife.org on 20/12/2014

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