Australian Smelt
Australian smelt are small, schooling native fish found across south-eastern Australia's rivers, lakes, and billabongs. Rarely targeted by anglers directly, they matter enormously as forage — a key food source for Murray cod, golden perch, and trout.
Understanding where smelt school helps you find the predators that follow them.
Scientific Name: Retropinna semoni
Also known as Kantari, Victorian Smelt, Smelt
- Slender, tubular body to about 75 mm, rarely reaching 100 mm — roughly the length of your finger.
- Silvery to near-transparent sides with an olive-brown back; belly white. Some northern fish show orange markings and gold flecks, especially breeding males.
- Small dorsal fin set well back toward the tail, with a tiny adipose fin behind it — the adipose fin is a useful ID marker separating smelt from similar small species.
- Large eyes relative to body size; forked tail; fins colourless in most individuals.
What to know
Habitat Distribution
- Native and endemic to Australia; widespread across south-eastern drainages from the Fitzroy River in southern Queensland down through NSW and Victoria to the Murray mouth in South Australia.
- Penetrates deep inland via the Murray-Darling system, including the Darling River downstream from Wilcannia, and isolated populations exist in the Cooper Creek system draining toward Lake Eyre.
- Prefers slow-moving or still water — billabongs, weir pools, dams, lakes, and the quieter reaches of lowland rivers and streams. Also recorded in brackish estuaries.
- Most abundant at lower and mid altitudes; rarely found in fast-flowing upland headwaters in the southern Basin, though more common in upland habitats in the northern parts of its range.
Key Locations
- Murray-Darling Basin — one of the most abundant native fish species recorded across lowland rivers and wetlands throughout the system.
- Lower Murray wetlands and billabongs, South Australia — recorded as the fifth most abundant fish species in lower Murray wetlands.
- Murrumbidgee catchment, NSW — common throughout lower and mid-altitude reaches below around 600 m elevation.
- Coastal streams from central Queensland to the Murray mouth — present in most slow-water habitats along this stretch of the eastern seaboard.
Specific Spots
- Schools concentrate near the surface in open water, often over submerged aquatic vegetation or woody debris where they find cover and food.
- Weir pools and dam walls create slack water that smelt favour — and that draws predators like Murray cod and golden perch to the same area.
- Billabong edges and flooded floodplain margins hold large schools, particularly during warmer months when terrestrial insects fall onto the water.
Australian Smelt FAQ
Answers from onWater's species guide.
What are the best lures and bait for Australian Smelt?
Australian smelt are rarely targeted directly by anglers, but they are widely used as live or dead bait for Murray cod and golden perch, their natural size and profile make them highly effective when legal to use as bait in the relevant jurisdiction.
When is the best time to fish for Australian Smelt?
Spring (September–November), spawning activity begins as water temperatures climb above 15°C; smelt become more visible near the surface. Summer (December–February), large schools active near the surface, feeding on terrestrial insects; predators that key on smelt are often most active around these aggregations.
How do you catch Australian Smelt?
Australian smelt are not a conventional angling target given their small size, but they are important as live or dead bait for larger native predators.
What do Australian Smelt eat?
Primarily terrestrial insects that fall onto the water surface, plus microcrustaceans and small aquatic insects, a diurnal feeder that works the surface and mid-water column.
Where do Australian Smelt live?
Native and endemic to Australia; widespread across south-eastern drainages from the Fitzroy River in southern Queensland down through NSW and Victoria to the Murray mouth in South Australia.
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