Retropinna semoni (Weber 1895)
Australian smelt

RETROPINNIDAE, Smelts


image 17KK jpeg 65mm (2.6in) TL, Yarra River, Melbourne, Victoria. Ross Felix photo.

Size

Australian smelt grow to 100mm (4in) TL.

Conservation Status

None.

Distribution & Abundance

Within Central Australia, this species is restricted to Cooper Creek where they are often abundant. They are also widespread and abundant in south-eastern Australia.

Habitat & Ecology

They are typically found in the main rivers and medium sized tributaries. They have a strong tendency to gather below barriers when the rivers are flowing suggesting they undertake migrations. Their diet is thought to be carnivorous consisting of items such as plankton, small insects, and crustaceans (Merrick & Schmida 1984).

Reproduction

Australian smelt probably spawn in late winter and early spring at temperatures over 15°C (60°F) (Merrick & Schmida 1984). Fecundity is probably low (Merrick & Schmida 1984). In Cooper Creek, spawning can begin in mid winter and may extend into early summer (J. Puckridge pers. comm.). They are sexually dimorphic, males have larger fins and more numerous nuptial tubercules (Merrick & Schmida 1984).

Threats

None.

Conservation Action

Not relevant.

Conservation Recommendations

Not relevant.

Important References

Merrick, J. R. & Schmida, G. E. 1984. Australian Freshwater Fishes: Biology and Management. Griffith Press Ltd. 409pp.

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The Australian desert fishes pages are compiled and maintained by Peter J. Unmack
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This file was last modified:  18 March 2003