Retropinna semoni  (Weber, 1895)

Australian smelt
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Retropinna semoni
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Osmeriformes (Smelts) > Retropinnidae (New Zealand smelts) > Retropinninae
Etymology: Retropinna: Latin, retro = backwards, on the back side + Latin, pinna = thorn (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; brackish; pelagic; potamodromous (Ref. 51243).   Temperate; 10°C - 25°C (Ref. 2059)

Length at first maturity / Size / Weight / Age

Maturity: Lm 7.0  range ? - ? cm
Max length : 10.0 cm TL male/unsexed; (Ref. 5259); common length : 6.0 cm TL male/unsexed; (Ref. 5259); max. reported age: 2 years (Ref. 4851)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Oceania: Australia's east coast from the Fritzroy River southward to at least the Shoalhaven River; throughout most of the Murray-Darling river system; and in Lake Eyre inland drainage system near Longreach, Thompson River.

Biology     Glossary (e.g. epibenthic)

Lives in streams, backwaters, lakes, swamps and estuaries. Occurs in brackish estuaries and inland salt lakes. Most common in slow-flowing streams and still waters, shoaling near the surface or around the cover of aquatic plants and woody debris. Forms large aggregations in open water (Ref. 44894). Feeds on aquatic insects, microcrustaceans and algae. Spawns throughout the Murray-Darling river system. Breeds between July and March (mostly in spring) (Ref. 44894). Spawning temperature is about 15 °C. Newly hatched larvae measure 4.8 mm TL on the average. Eggs are laid among aquatic vegetation and hatch in about 10 days. Sexual maturity is attained by the end of the first year (Ref. 44894). Eaten fresh or canned.

Main reference Upload your references | References | Coordinator : McDowall, Robert M. | Collaborators

Lake, J.S., 1971. Freshwater fishes and rivers of Australia. Thomas Nelson Ltd., Australia. 61 p. (Ref. 4850)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
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Stamps, Coins
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Ciguatera
Speed
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Internet sources

Alien/Invasive Species database | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6406   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.8   ±0.29 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (K=0.31; tm=1; tmax=2).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (33 of 100) .
Price category (Ref. 80766):   Unknown.