Round Island / Serpent Island - Marine

Country/territory: Mauritius

IBA Criteria met: -
For more information about IBA criteria please click here

Area: 1,043,558 ha

Mauritius Wildlife Foundation

Site description
This Marine IBA is identified using seaward extensions around breeding colonies. It originates from the Mauritius Exclusive Economic Zone (EEZ) and falls within the Indian Ocean, Western FAO ocean region. The site covers an area of 10436 km2 and is 22 km away from the closet coastline. The depth ranges from 0 to 4380 m, with a mean annual wind speed of 2.12 m/s and mean annual sea surface temperature falls between 25.37 and 25.77 °C.

Key biodiversity
7 species trigger IBA criteria at this Marine IBA. Seaward extensions around breeding colonies; Serpent Island, Round Island include key near-colony areas for breeding populations of Brown Noddy (LC) 15000-10800 individuals, Lesser Noddy (LC) 15000-240000 individuals, Sooty Tern (LC) 300000-1200000 individuals, White-tailed Tropicbird (LC) 1500-3000 individuals, Red-tailed Tropicbird (LC) 1500-2100 individuals, Trindade Petrel (Round Island Petrel) (VU) 1200-1200 individuals and Wedge-tailed Shearwater (LC) 150000-150000 individuals.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Round Island / Serpent Island - Marine. Downloaded from on 06/12/2021.