Creatures in Crisis
Photograph of Oily Gudgeon (Sarcocheilichthys biwaensis), recorded as Endangered
Oily Gudgeon (Sarcocheilichthys biwaensis). Image via Wikimedia Commons.

Endangered

Oily Gudgeon

Sarcocheilichthys biwaensis

Oily Gudgeon is a minnow in the family Cyprinidae (order Cypriniformes) — Sarcocheilichthys biwaensis, recorded as Endangered and tied to Japan.

Status
Endangered
Scientific name
Sarcocheilichthys biwaensis
Recorded from
Japan
Taxonomy
Cypriniformes · Cyprinidae · Sarcocheilichthys

The minnow

Minnows and barbs are ray-finned freshwater fishes without teeth in the jaws; they grind food with pharyngeal teeth.

Carps, minnows, and loaches. They lack jaw teeth and live in freshwater.

Range and habitat

This fish is endemic to Lake Biwa in Japan.

GBIF currently lists 103 occurrence points. Those points follow where people logged the taxon — museum drawers and surveys included — not a closed range boundary.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

In crisis

Oily Gudgeon 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 Sarcocheilichthys biwaensis — often a short stub, Wikidata item Q1101074 and GBIF occurrence geography. 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.

Photograph via Wikimedia Commons. Wikipedia · Wikidata · IUCN Red List.

Also in this catalog

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Vaquita

Phocoena sinus
Photograph of Javan rhinoceros (Rhinoceros sondaicus), recorded as Critically EndangeredCR

Javan rhinoceros

Rhinoceros sondaicus
Photograph of Sumatran orangutan (Pongo abelii), recorded as Critically EndangeredCR

Sumatran orangutan

Pongo abelii
Photograph of Axolotl (Ambystoma mexicanum), recorded as Critically EndangeredCR

Axolotl

Ambystoma mexicanum

Quick answers

What is Oily Gudgeon?
Oily Gudgeon is a minnow in the family Cyprinidae (order Cypriniformes) — Sarcocheilichthys biwaensis.
What is the conservation status of Oily Gudgeon?
Endangered, as the IUCN category stored on Wikidata for Sarcocheilichthys biwaensis. Confirm the official assessment on iucnredlist.org.
Where does Oily Gudgeon live?
This fish is endemic to Lake Biwa in Japan.
Why is Oily Gudgeon in crisis?
It is Endangered on Wikidata. Read the official Red List assessment for the criteria.
Is this the IUCN Red List page for Sarcocheilichthys biwaensis?
No. This is a researched catalog account. The Red List is the assessment.
Is Oily Gudgeon a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.