Two-finned round herring (Spratellomorpha bianalis)

Scientific name: Spratellomorpha bianalis Bertin, 1940

Two-finned round herring (Spratellomorpha bianalis)

The Two-finned round herring (Spratellomorpha bianalis) is a brackish-water fish of the family Clupeidae. Native range: Western Indian Ocean, Madagascar and Kenya coast (Port Tudor, Mombasa; probably more widespread).

Biology

Dorsal spines (total): 0; Dorsal soft rays (total): 12-18; Anal spines: 0; Anal soft rays: 16 - 27. Body a little compressed, belly rounded, without pre-pelvic scutes, but a pelvic present with slender vertical arms. Snout pointed, lower jaw projecting slightly. Last two anal fin rays separate forming a distinct little finlet. This last feature identifies the species (found in no other clupeoid of the western Indian Ocean).

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Spratellomorpha bianalis
Family
Clupeidae (Herrings, shads and sardines)
Order
Clupeiformes (Herrings)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
4.5
Environment
Marine; brackish; pelagic-neritic
Climate
Tropical
Distribution
Western Indian Ocean: Madagascar and Kenya coast (Port Tudor, Mombasa; probably more widespread).
Conservation status (IUCN)
Data deficient (DD)
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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