HomeFish encyclopediaRay-finned fishesSilversidesSilversidesBalabac Island silverside Balabac Island silverside (Atherinomorus balabacensis) Scientific name: Atherinomorus balabacensis Seale, 1910 The Balabac Island silverside (Atherinomorus balabacensis) is a brackish-water fish of the family Atherinidae. Native range: Western Pacific, Philippines and Trobriand Islands. BiologyDorsal spines (total): 5 - 7; Dorsal soft rays (total): 8-11; Anal spines: 1; Anal soft rays: 12 - 14. Body with a thin, silvery midlateral band. The band have very fine, blue-black edge above. Scales above the band with fine melanophores; row of scales below with small black dot on each. Fins mostly uniformly yellowish, pectorals with dusky patch at the base. Anteriormost point of the head formed by the protruding lower jaw. Mouth large and oblique. Gill rakers long and slender. Scales deciduous on head. Preserved specimens uniformly yellow green with thin silvery midlateral band.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAtherinomorus balabacensisFamilyAtherinidae (Silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length7.0EnvironmentMarine; brackish; pelagic-neritic; non-migratoryClimateTropicalDistributionWestern Pacific: Philippines and Trobriand Islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026