CR

Cyprinus barbatus

Declining

Overview

Cyprinus barbatus is a species of ray-finned fish in the genus Cyprinus. It is endemic to Lake Erhai in Dali, Yunnan, China. It is negatively impacted by agricultural and domestic pollution and introduced species. The IUCN considers it as critically endangered and possibly extinct, but records as recent as the 2000s (decade) show that it likely does survive.

Cyprinus barbatus faces severe population decline primarily due to habitat degradation from agricultural runoff and water extraction in its native river systems. Dam construction has fragmented remaining populations and altered natural flow regimes essential for spawning. Introduced non-native fish species compete for resources and may hybridize with remaining wild populations, further threatening genetic integrity.

Threat summary

Habitat

This freshwater cyprinid inhabits slow-flowing rivers and streams with muddy or sandy substrates, typically in lowland areas with abundant aquatic vegetation. The species requires clean, well-oxygenated water with stable flow regimes for successful reproduction and juvenile development.

Wetlands (inland) - Permanent freshwater lakes· major

Conservation measures underway

Species recovery

Frequently asked questions

Why is Cyprinus barbatus classified as Critically Endangered?
Cyprinus barbatus is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Cyprinus barbatus faces severe population decline primarily due to habitat degradation from agricultural runoff and water extraction in its native river systems. Dam construction has fragmented remaining populations and altered natural flow regimes essential for spawning. Introduced non-native fish species compete for resources and may hybridize with remaining wild populations, further threatening genetic integrity.
Where does Cyprinus barbatus live?
Cyprinus barbatus 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 Cyprinus barbatus?
The main threats to Cyprinus barbatus are 2.1, 5.3, 8.1, and 9.3. The full IUCN-classified threat record for this species is detailed on the species page.

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