email a friend
printable version
Location High Seas
Central coordinates 34o 21.00' East  39o 9.00' South
IBA criteria A1, A4ii
Area 12,299,034 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 Indian Ocean, FAO ocean region. The site covers an area of 122990 km2 and is 475 km away from the closet coastline. The depth ranges from 2845 to 6074 m, with a mean annual wind speed of 2.67 m/s, mean annual sea surface temperature falls between 12.13 and 19.98 °C and mean annual chlorophyll-a concentrations found to range between 0.22 and 0.57 mg/m3.

Key Biodiversity 6 species trigger IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 23-26 individuals of Amsterdam Albatross (CR) from Ile Amsterdam are present at the site during the Non-breeding (Apr-Nov) life-history stage. 555-584 individuals of Wandering Albatross (VU) from Prince Edward Island are present at the site during the Post-guard (Apr-Dec) life-history stage. 599-899 individuals of Wandering Albatross (VU) from South Georgia are present at the site during the Juvenile (Jun-Oct) life-history stage. 540-2700 individuals of Sooty Albatross (EN) from Iles Crozet are present at the site during the Incubation (Oct-Dec) and Non-breeding (Year-Round) life-history stages. 981-1570 individuals of Indian Yellow-nosed Albatross (EN) from Prince Edward Island are present at the site during the Post-guard (Jan-Apr) life-history stage.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Amsterdam Albatross Diomedea amsterdamensis non-breeding  23-26 individuals  A1, A4ii  Critically Endangered 
Wandering Albatross Diomedea exulans post-guard  1997  555-584 individuals  A1, A4ii  Vulnerable 
Wandering Albatross Diomedea exulans juvenile (non-breeding)  2001  599-899 individuals  A1, A4ii  Vulnerable 
Sooty Albatross Phoebetria fusca incubation  540-900 individuals  A1, A4ii  Endangered 
Sooty Albatross Phoebetria fusca non-breeding  563-2,700 individuals  A1, A4ii  Endangered 
Indian Yellow-nosed Albatross Thalassarche carteri post-guard  2011  981-1,570 individuals  A1, A4ii  Endangered 

IBA Monitoring

2013 high not assessed not assessed

Biological resource use fishing & harvesting aquatic resources - unintentional effects: large scale happening now whole area/population (>90%) slow but significant deterioration high


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

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Indian Ocean, Western 1 - Marine. Downloaded from on 27/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife