This Marine IBA is identified using seaward extensions around breeding colonies. It originates from the Madagascar Exclusive Economic Zone (EEZ) and falls within the Indian Ocean, Western FAO ocean region. The site covers an area of 5105 km2 and is 22 km away from the closet coastline. The depth ranges from 0 to 2016 m, with a mean annual wind speed of 1.76 m/s and mean annual sea surface temperature falls between 25.73 and 27.4 °C.
3 species trigger IBA criteria at this Marine IBA. Seaward extensions around breeding colony; Cape Anorontany archipelago include key near-colony areas for breeding populations of Lesser Crested Tern (LC) 525-525 individuals, Great Crested Tern (LC) 4800-4800 individuals and Roseate Tern (LC) 975-1425 individuals.
BirdLife International (2021) Important Bird Areas factsheet: Cape Anorontany archipelago - Marine. Downloaded from http://www.birdlife.org on 05/12/2021.