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Osmeriformes (Freshwater smelts) >
Retropinnidae (New Zealand smelts) > Retropinninae
Etymology: Retropinna: Latin, retro = backwards, on the back side + Latin, pinna = thorn (Ref. 45335).
Eponymy: Dr Richard Wolfgang Semon (1859–1918) was a German embryologist, evolutionary biologist and physiologist. [...] (Ref. 128868), visit book page.
More on author: Weber.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce; salmastro pelagico; potamodromo (Ref. 51243). Temperate; 10°C - 25°C (Ref. 2059)
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.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 7.0  range ? - ? cm
Max length : 10.0 cm TL maschio/sesso non determinato; (Ref. 5259); common length : 6.0 cm TL maschio/sesso non determinato; (Ref. 5259); Età massima riportata: 2.00 anni (Ref. 4851)
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.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Lake, J.S., 1971. Freshwater fishes and rivers of Australia. Thomas Nelson Ltd., Australia. 61 p. (Ref. 4850)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.6406 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
2.8 ±0.29 se; based on food items. |
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Generation time |
3.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (K=0.31; tm=1; tmax=2). |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Unknown.
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