This Marine IBA is identified using tracking data. It falls within the Greenland (to Denmark) Exclusive Economic Zone (EEZ) and the Atlantic, Northwest FAO ocean region. The site covers an area of 2048 km2 and borders the coastline. The depth ranges from 0 to 175 m and mean annual sea surface temperature falls between 1.67 and 2.78 °C.
1 species triggers IBA criteria at this Marine IBA. Seaward extensions around breeding colonies; Sermilinnguaq, Søndre Isortoq include key near-colony areas for breeding populations of Black-legged Kittiwake (LC) 28842-54800 individuals.
BirdLife International (2020) Important Bird Areas factsheet: Søndre Isortoq - Marine. Downloaded from http://www.birdlife.org on 07/08/2020.