Data Zone
Country/territory: Japan
IBA criteria met: A1, A4ii (2016)
For more information about IBA criteria, please click here
Area: 372 ha
Site description (2012 baseline)
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 4 km2 and borders the coastline. The depth ranges from 0 to 7 m.
Key biodiversity
2 species trigger IBA criteria at this Marine IBA. Seaward extensions around breeding colony; Iwo islands include key near-colony areas for breeding populations of Matsudaira's Storm-petrel (DD) and Red-tailed Tropicbird (LC).
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Kazan-Retto Islands - Marine (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/kazan-retto-islands--marine-iba-japan on 23/11/2024.