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 11 km2 and borders the coastline. The depth ranges from 0 to 20 m.
1 species triggers IBA criteria at this Marine IBA. Seaward extensions around breeding colony; Lake Hamanako include key near-colony areas for breeding populations of Little Tern (LC).
BirdLife International (2020) Important Bird Areas factsheet: Lake Hamanako - Marine. Downloaded from http://www.birdlife.org on 25/02/2020.