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Once widespread the Golden price carp also know as the Isok barb is threatened in its natural habitat.

SCIENTIFIC CLASSIFICATION
- Kingdom: Animalia
- Phylum: Chordata
- Class: Actinopterygii
- Order: Cypriniformes
- Family: Cyprinidae
- Genus: Probarbus
- Species: Probarbus jullieni
Common names: Jullien's Golden Price Carp, Isok Barb. Esok. Giant River Carp
Thai name: Pla Yisok Thai (ยี่สก)
Thailand status: Native
Max size: 50kg (110lb)
Diet: Phytoplankton, Algae, Terrestrial fruits, Aquatic plants, Worms, Insects, Shrimps, Crabs
Habitat: Freshwater