Isok barb (Probarbus jullieni)

Scientific name: Probarbus jullieni Sauvage, 1880

Isok barb (Probarbus jullieni)

The Isok barb (Probarbus jullieni) is a freshwater fish of the family Cyprinidae.

Biology

Dorsal soft rays (total): 13; Anal soft rays: 8. Differs from P. labeamajor in having only 5 (instead of 6) stripes between lateral line scale row and dorsal fin base; lips not enlarged, free posterior margin of lower lip interrupted at midline; large adults without mentum; maxillary barbel invariably well developed, length one-third or more of eye diameter. The only species in which body stripes may extend to every scale row, but this only occurs in some larger and more darkly pigmented individuals. P. labeamajor and P. labeaminor have no more than three stripes below lateral line scale row, and the abdomen is uniformly white. Adults and larger juveniles of P. jullieni usually have much more red and sometimes yellow coloration on head, body, and fins than the other two species. Scale rows between lateral line scale row and pelvic fin 4.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Probarbus jullieni
Family
Cyprinidae (Minnows or carps)
Order
Cypriniformes (Carps)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
150
Common length
28.0
Environment
Freshwater; brackish; demersal; potamodromous
Climate
Tropical
Distribution
Asia: Mekong, Chao Phraya and Meklong basins of Indo-China and Thailand, and the Pahang and Perak basins of Malaysia. Catch, trade and transportation forbidden in Laos. International trade banned (CITES I, since 1.7.75).
Conservation status (IUCN)
Endangered (EN) (A1ac)
Threat to humans
Harmless
Uses
Fisheries: commercial; aquaculture: experimental; gamefish: yes
Resilience
Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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