Fly river thryssa (Thryssa rastrosa)

Scientific name: Thryssa rastrosa Roberts, 1978

Fly river thryssa (Thryssa rastrosa)

The Fly river thryssa (Thryssa rastrosa) is a freshwater fish of the family Engraulidae. Native range: Oceania, known only from the Fly River, Papua New Guinea.

Biology

Dorsal spines (total): 0; Dorsal soft rays (total): 12-13; Anal spines: 0; Anal soft rays: 29 - 36. Belly with 17 to 19 + 10 or 11 = 27 to 29 keeled scutes from isthmus to anus. Maxilla short, not quite reaching to hind border of pre-operculum; first supra-maxilla short, not more than half length of second. No black area behind upper part of gill opening.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Thryssa rastrosa
Family
Engraulidae (Anchovies)
Order
Clupeiformes (Herrings)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
12.0
Environment
Freshwater; pelagic
Climate
Tropical
Distribution
Oceania: known only from the Fly River, Papua New Guinea.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: subsistence fisheries
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.

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