Spindle croaker (Johnius elongatus)

Scientific name: Johnius elongatus Mohan, 1976

Spindle croaker (Johnius elongatus)

The Spindle croaker (Johnius elongatus) is a marine fish of the family Sciaenidae. Native range: Western Indian Ocean, west coast of India and Sri Lanka.

Biology

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 25-29; Anal spines: 2; Anal soft rays: 7. Snout swollen, projecting beyond the ventral mouth. Mental pores surrounded by thickened skin, produced into two short, irregular tags between the median and first lateral pores. Teeth differentiated into large and small upper jaw, those in the outer row close-set and enlarged, but not canine-like. Lower jaw teeth uniformly villiform. Sagitta with a tadpole-shaped impression, the "tail" of which is expanded and deepened as a hollow cone. Gillrakers short and narrow, 6 or 7 on lower limb of first arch. Second part of dorsal fin with 1 spine and 25-229 soft rays. Swim bladder hammer-shaped, with 13 or 14 pairs of arborescent appendages, the first branching in the head.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Johnius elongatus
Family
Sciaenidae (Drums or croakers)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
30.0
Common length
20.0
Depth range
30 m (98 ft)
Environment
Marine; demersal; depth range ? - 30 m
Climate
Tropical
Distribution
Western Indian Ocean: west coast of India and Sri Lanka.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

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

Last updated