HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesStream pipefish Stream pipefish (Microphis brevidorsalis) Scientific name: Microphis brevidorsalis de Beaufort, 1913 The Stream pipefish (Microphis brevidorsalis) is a freshwater fish of the family Syngnathidae. Native range: Asia and Oceania, Indonesia, western Caroline Islands and southeastward to Fiji. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 25-29Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMicrophis brevidorsalisFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length11.5EnvironmentFreshwater; demersalClimateTropicalDistributionAsia and Oceania: Indonesia, western Caroline Islands and southeastward to Fiji.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