Bentenjima / Matsumaekojima islets - Marine

Country/territory: Japan

IBA Criteria met: A4i (2012)
For more information about IBA criteria please click here

Area: 5,159,732 ha

Protection status:

Wild Bird Society of Japan

Site description
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 51597 km2 and borders the coastline. The depth ranges from 0 to 3812 m, with a mean annual wind speed of 1.95 m/s and mean annual sea surface temperature falls between 10.42 and 20.54 °C.

Key biodiversity
2 species trigger IBA criteria at this Marine IBA. Seaward extensions around breeding colony; Matsumaekojima islet include key near-colony areas for breeding populations of Rhinoceros Auklet (LC) and Black-tailed Gull (LC) 50000-80000 individuals.

Recommended citation
BirdLife International (2019) Important Bird Areas factsheet: Bentenjima / Matsumaekojima islets - Marine. Downloaded from on 21/08/2019.