Major Habitat Type
Drainages flowing into
The Tubuai Islands and Bass Islands together encompass the Austral Islands, a set of two archipelagos in the central South Pacific Ocean. The islands include Maria, Rimatara, Rurutu, Tubuai, and Raivavae (Tubuai Islands) and Rapa Iti and Marotiri (Bass Islands).
These islands are volcanic in origin.
These islands fall within the Tubuai tropical moist forests terrestrial ecoregion [OC0116] (WWF 2001).
Description of endemic fishes
This ecoregion contains two endemic gobiids: Stenogobius randalli from Tubuai Island and Stiphodon discotorquatus from Rurutu Island.
Other noteworthy fishes
Stiphodon discotorquatus is listed as Critically Endangered according to the IUCN Red List (2012). It has not been recorded since 1985 and may possibly be extinct.
Justification for delineation
The Tubuai Islands ecoregion was defined on the basis of distinctive (endemic or near-endemic) fish faunas. Regional species sources included Keith et al. (2002).
- Keith, P.,Vigneux, E.;Marquet, G. (2002). "Atlas des Poissons et des Crustacés d'Eau Douce de Polynésie Française" 55 Paris, France: MNHN.
- World Wildlife Fund (WWF) (2001) \Terrestrial Ecoregions of the World\ "<"http://www.worldwildlife.org/wildworld/profiles/terrestrial_nt.html">"
- IUCN (2012) \IUCN Red List of Threatened Species. Version 2012.2\ "<"www.iucnredlist.org">" (21 May 2013)