This Marine IBA is identified using both tracking data and seaward extensions around breeding colonies. It falls within the French Southern Territories Exclusive Economic Zone (EEZ) and the Indian Ocean, Antarctic and Southern FAO ocean region. The site covers an area of 5858 km2 and is 22 km away from the closet coastline. The depth ranges from 0 to 568 m, with a mean annual wind speed of 3.62 m/s and mean annual sea surface temperature falls between 2.4 and 3.86 °C.
9 species trigger IBA criteria at this Marine IBA. BirdLife analyses of tracking data estimates that 173-1115 individuals of Wandering Albatross (VU) from Iles Kerguelen are present at the site during the Brood-guard (Mar-Apr), Incubation (Dec-Mar) and Juvenile (Nov-Dec) life-history stages. 43875-200561 individuals of White-chinned Petrel (VU) from Iles Kerguelen are present at the site during the Breeding (Oct-May) life-history stage. 604-4697 individuals of Black-browed Albatross (EN) from Iles Kerguelen are present at the site during the Brood-guard (Dec-Jan), Incubation (Oct-Jan) and Post-guard (Jan-May) life-history stages. Seaward extensions around breeding colonies; Péninsule Courbet, Islands of the Golfe du Morbihan include key near-colony areas for breeding populations of Grey Petrel (NT) 15000-15000 individuals and Kerguelen Tern (NT).
BirdLife International (2021) Important Bird Areas factsheet: Islands of the Golfe du Morbihan - Marine. Downloaded from http://www.birdlife.org on 25/01/2021.