HomeFish encyclopediaRay-finned fishesPerch-like fishRemorasMarlin sucker Marlin sucker (Remora osteochir) Scientific name: Remora osteochir Cuvier, 1829 The Marlin sucker (Remora osteochir) is a marine fish of the family Echeneidae. BiologyOceanic species with a strong preference for marlins and sailfish as hosts, but may occasionally cling to other large fishes. Attaches to the body or gill chamber of the host. Oviparous. Distinct pairing during breeding.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRemora osteochirFamilyEcheneidae (Remoras)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length40.0EnvironmentMarine; pelagic-oceanic; oceanodromousClimateSubtropicalDistributionWarm and temperate seas of all oceans. Western Central Pacific: Guam. Eastern Pacific: southern California, USA to Peru. Western Atlantic: Massachusetts, USA and northern Gulf of Mexico to Brazil. Eastern Central Atlantic: Madeira Island.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Fec = 8,100) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026