HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesMangrove goby Mangrove goby (Acentrogobius audax) Scientific name: Acentrogobius audax Smith, 1959 The Mangrove goby (Acentrogobius audax) is a brackish-water fish of the family Gobiidae. In the aquarium it needs water at 25°C (77°F). Native range: Western Indian Ocean, Ibo, Mozambique and Natal, South Africa. Northwest Pacific: Japan. Mangrove goby care at a glanceTemperature25°C (77°F) BiologyDorsal spines (total): 5; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 9. Dark bar on caudal peduncle and on caudal base.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAcentrogobius audaxFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0EnvironmentMarine; brackish; demersalClimateSubtropicalDistributionWestern Indian Ocean: Ibo, Mozambique and Natal, South Africa. Northwest Pacific: Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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