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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 Ökologie

; süßwasser; brackwasser pelagisch; potamodrom (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.

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 7.0 range ? - ? cm
Max length : 10.0 cm TL Männchen/unbestimmt; (Ref. 5259); common length : 6.0 cm TL Männchen/unbestimmt; (Ref. 5259); max. veröff. Alter: 2.00 Jahre (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.

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : McDowall, Robert M. | Partner

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

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 14 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: kommerziell

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (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).

Trophic level (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.

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (K=0.31; tm=1; tmax=2).

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

Preiskategorie (Ref. 80766): Unknown.

Retropinna semoni (Weber, 1895)