HomeFish encyclopediaRay-finned fishesPerch-like fishCales and weed-whitingsSlender weed whiting Slender weed whiting (Siphonognathus attenuatus) Scientific name: Siphonognathus attenuatus Ogilby, 1897 The Slender weed whiting (Siphonognathus attenuatus) is a marine fish of the family Odacidae. Native range: Eastern Indian Ocean, southern Australia, from Rottnest Island, Western Australia to Wilsons Promontory, Victoria. BiologyCommonly found at some distance from the shore, over sandy areas associated with seagrass and low rocky outcrops. Form small groups at depths of about 15-20 m.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSiphonognathus attenuatusFamilyOdacidae (Cales and weed-whitings)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length12.0Depth range15–45 m (49–148 ft)EnvironmentMarine; demersal; depth range 15 - 45 mClimateSubtropicalDistributionEastern Indian Ocean: southern Australia, from Rottnest Island, Western Australia to Wilsons Promontory, Victoria.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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