This Marine IBA is identified using seaward extensions around breeding colonies. It originates from the Japan Exclusive Economic Zone (EEZ) and falls within the Pacific, Northwest FAO ocean region. The site covers an area of 65272 km2 and borders the coastline. The depth ranges from 0 to 4966 m, with a mean annual wind speed of 2.03 m/s and mean annual sea surface temperature falls between 6.23 and 10.17 °C.
4 species trigger IBA criteria at this Marine IBA. Seaward extensions around breeding colonies; Kunashir island, Shiretoko, Mount Syari-dake, Yururito and Moyururito islets include key near-colony areas for breeding populations of Japanese Cormorant (LC) , Black-legged Kittiwake (LC) , Common Murre (LC) and Slaty-backed Gull (LC).
BirdLife International (2020) Important Bird Areas factsheet: Eastern Hokkaido - Marine. Downloaded from http://www.birdlife.org on 27/11/2020.