Sharpnose hammer croaker (Johnius borneensis)

Scientific name: Johnius borneensis Bleeker, 1851

Sharpnose hammer croaker (Johnius borneensis)

The Sharpnose hammer croaker (Johnius borneensis) is a freshwater fish of the family Sciaenidae. Native range: Indo-West Pacific, Persian Gulf eastward to southern China and Taiwan and northern and northeastern Australia and New Guinea.

Biology

Inhabits shallow coastal waters, estuaries, and rivers. In India, matures at the size of 14 to 16 cm TL; attains an average size of 15.8 cm TL, 20.6 cm TL, and 24 cm TL, at the end of 1 year, 1.5 years and 2 years, respectively. Juveniles prefer crustaceans and as they grow, show piscivorous tendency. Marketed fresh and dried salted.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Johnius borneensis
Family
Sciaenidae (Drums or croakers)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
34.8
Common length
20.0
Depth range
0–132 m (0–433 ft)
Environment
Marine; freshwater; brackish; benthopelagic; depth range 0 - 132 m
Climate
Tropical
Distribution
Indo-West Pacific: Persian Gulf eastward to southern China and Taiwan and northern and northeastern Australia and New Guinea.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: minor commercial
Resilience
High, minimum population doubling time less than 15 months (K=0.5-0.8)

Sources

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

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