HomeFish encyclopediaRay-finned fishesHerringsPristigasteridsPacific ilisha Pacific ilisha (Ilisha fuerthii) Scientific name: Ilisha fuerthii Steindachner, 1875 The Pacific ilisha (Ilisha fuerthii) is a brackish-water fish of the family Pristigasteridae. Native range: Eastern Central Pacific, El Salvador to the northern tip of Peru. BiologyDorsal spines (total): 0; Anal spines: 0; Anal soft rays: 46 - 50. Body moderately slender, belly with 23 to 25 + 11 to 14 scutes. Eye large, lower jaw projecting; gap between hind tip of premaxilla a ligament, not a toothed bone. Dorsal fin origin a little before midpoint of body; anal fin long, its origin below about last dorsal fin rays.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameIlisha fuerthiiFamilyPristigasteridae (Pristigasterids)OrderClupeiformes (Herrings)ClassActinopterygii (Ray-finned fishes)Maximum length33.0Common length20.0Depth range0–50 m (0–164 ft)EnvironmentMarine; brackish; pelagic-neritic; depth range 0 - 50 mClimateTropicalDistributionEastern Central Pacific: El Salvador to the northern tip of Peru.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, 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