HomeFish encyclopediaRay-finned fishesPerch-like fishSleepersBlackbanded gauvina Blackbanded gauvina (Oxyeleotris herwerdenii) Scientific name: Oxyeleotris herwerdenii Weber, 1910 The Blackbanded gauvina (Oxyeleotris herwerdenii) is a freshwater fish of the family Eleotridae. Native range: Asia and Oceania, New Guinea. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 8-9; Anal spines: 1; Anal soft rays: 7 - 8Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOxyeleotris herwerdeniiFamilyEleotridae (Sleepers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length30.0EnvironmentFreshwater; demersalClimateTropicalDistributionAsia and Oceania: New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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