CR

Jullien's Golden Carp

Probarbus jullieni

Declining

Overview

The Jullien's golden carp is a species of endangered freshwater ray-finned fish in the family Cyprinidae found in Southeast Asian river basins. Its existence is being threatened by various economic activities, such as large-scale agriculture and the building of dams for hydropower.

Probarbus jullieni faces severe population decline primarily due to overfishing and habitat degradation throughout the Mekong River system. Dam construction has fragmented its migration routes and altered flow regimes essential for spawning, while intensive fishing pressure targets both adults and juveniles. Water pollution from agricultural runoff and industrial activities further degrades the aquatic ecosystems this species depends on for survival.

Threat summary

Habitat

Probarbus jullieni inhabits large river systems in the Mekong Basin, preferring deep pools and main channel areas with moderate to strong currents. The species requires free-flowing rivers for migration between feeding and spawning areas, typically moving between deeper refugia and shallow spawning grounds during seasonal cycles.

Wetlands (inland)· majorWetlands (inland) - Permanent rivers/streams· major

Conservation measures underway

Species recoveryLegislation

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Frequently asked questions

Why is Jullien's Golden Carp classified as Critically Endangered?
Jullien's Golden Carp 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. Probarbus jullieni faces severe population decline primarily due to overfishing and habitat degradation throughout the Mekong River system. Dam construction has fragmented its migration routes and altered flow regimes essential for spawning, while intensive fishing pressure targets both adults and juveniles. Water pollution from agricultural runoff and industrial activities further degrades the aquatic ecosystems this species depends on for survival.
Where does Jullien's Golden Carp live?
Jullien's Golden Carp occurs in Cambodia, Laos, Malaysia, Thailand, and Vietnam. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Jullien's Golden Carp?
The main threats to Jullien's Golden Carp are 5.3, 5.4, 7.2, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

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