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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).
More on author: Weber.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water; brak water pelagisch; potamodroom (Ref. 51243). Temperate; 10°C - 25°C (Ref. 2059)

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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.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 7.0 range ? - ? cm
Max length : 10.0 cm TL mannelijk / geslacht onbekend; (Ref. 5259); common length : 6.0 cm TL mannelijk / geslacht onbekend; (Ref. 5259); max. gerapporteerde leeftijd: 2.00 Jaren (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.

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator : McDowall, Robert M. | Medewerkers

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

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 14 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: commercieel

FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.6406 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: 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).

Trofisch niveau (Ref. 69278): 2.8 ±0.29 se; based on food items.

Generation time: 3.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (K=0.31; tm=1; tmax=2).

Fishing Vulnerability (Ref. 59153): Low vulnerability (13 of 100).

Prijsklasse (Ref. 80766): Unknown.

Retropinna semoni (Weber, 1895)