Tonkin weakfish (Cynoscion similis)

Scientific name: Cynoscion similis Randall & Cervig?n, 1968

Tonkin weakfish (Cynoscion similis)

The Tonkin weakfish (Cynoscion similis) is a marine fish of the family Sciaenidae. Native range: Western Atlantic, Colombia to northern Brazil. Also reported in Nicaragua.

Biology

Dorsal spines (total): 11; Dorsal soft rays (total): 24-29; Anal spines: 2; Anal soft rays: 8 - 10. Silvery grey on back, pale below. Trunk with dotted oblique stripes along scale rows. Inside opercle black, visible externally. Spinous dorsal-fin margin dark. Mouth large, slightly oblique, lower jaw projecting. Upper jaw with a pair of large canine-like teeth at tip. Chin without barbels or pores. Snout with 2 marginal pores. Gas bladder with a pair of straight, horn-like anterior appendages. Soft dorsal fin unscaled except 2 or 3 rows of small scales along its base (Ref 51721).

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Cynoscion similis
Family
Sciaenidae (Drums or croakers)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
60.0
Common length
40.0
Depth range
20–60 m (66–197 ft)
Environment
Marine; demersal; depth range 20 - 60 m
Climate
Tropical
Distribution
Western Atlantic: Colombia to northern Brazil. Also reported in Nicaragua.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: minor commercial
Resilience
Medium, minimum population doubling time 1.4 - 4.4 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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