HomeFish encyclopediaRay-finned fishesNeedle fishesHalfbeaksTropical half-beak fish Tropical half-beak fish (Hemiramphus depauperatus) Scientific name: Hemiramphus depauperatus Lay & Bennett, 1839 The Tropical half-beak fish (Hemiramphus depauperatus) is a marine fish of the family Hemiramphidae. Native range: Pacific Ocean, in the tropical and subtropical waters. Species factsScientific nameHemiramphus depauperatusFamilyHemiramphidae (Halfbeaks)OrderBeloniformes (Needle fishes)ClassActinopterygii (Ray-finned fishes)Maximum length34.6Depth range0–1 m (0–3 ft)EnvironmentMarine; pelagic-neritic; depth range 0 - 1 mClimateSubtropicalDistributionPacific Ocean: in the tropical and subtropical waters.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries:ResilienceHigh, 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