VU

Blind naked-belly barbel

Typhlobarbus nudiventris

Unknown

Overview

Typhlobarbus is a monospecific genus of freshwater, troglobitic ray-finned fish belonging to the family Cyprinidae, the carps, barbs and allied fishes. The only species in the genus is Typhlobarbus nudiventris, a species endemic to Jianshui County in Yunnan, China. Like other cavefish, it lacks pigmentation and its eyes are degenerated. It is the only species in its genus. It reaches up to about 4.6 cm (1.8 in) in standard length.

The Blind naked-belly barbel faces significant threats from habitat degradation and water pollution in its restricted cave and underground river systems. Dam construction and groundwater extraction have altered natural water flows, while agricultural runoff and industrial pollution contaminate the specialized aquatic environments this endemic species depends on.

Threat summary

Habitat

Endemic to underground cave systems and subterranean rivers in limestone karst formations of southern China. Inhabits dark, oxygen-poor waters with stable temperatures in caves and underground waterways.

FRESHWATER· major

Frequently asked questions

Why is Blind naked-belly barbel classified as Vulnerable?
Blind naked-belly barbel is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Blind naked-belly barbel faces significant threats from habitat degradation and water pollution in its restricted cave and underground river systems. Dam construction and groundwater extraction have altered natural water flows, while agricultural runoff and industrial pollution contaminate the specialized aquatic environments this endemic species depends on.
Where does Blind naked-belly barbel live?
Blind naked-belly barbel occurs in China. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Blind naked-belly barbel?
The main threats to Blind naked-belly barbel are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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