Endangered
Tokyo bitterling
Tanakia tanago
The Tokyo bitterling (Pseudorhodeus tanago) is a temperate freshwater ray-finned fish belonging to the family Acheilognathidae.
The minnow
The species was first described as Rhodeus tanago by Shigeho Tanaka in 1909.
Range and habitat
In the wild, this fish is found only on the Kantō Plain of Japan, an area near the capital city, Tokyo. The fish was formerly abundant in small streams, but its habitat has been overrun by people and pollution. This fish is endemic to the island of Honshu in Japan.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
In crisis
There is a real risk that it could become extinct in the wild.
Tokyo bitterling is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Tokyo bitterling, Wikidata item Q3761717. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.



