Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water; brak water demersaal; katadroom (Ref. 138269). Temperate; 10°S - 40°S
Oceania: endemic to Australia (Queensland to Victoria).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 60.0 cm TL mannelijk / geslacht onbekend; (Ref. 6398); max. gerapporteerde leeftijd: 22 Jaren (Ref. 38557)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Adults occur in rivers and estuaries (Ref. 7300, 44894), lakes and small streams in upland and coastal plain areas, including brackish estuaries. They prefer the cover provided by aquatic vegetation in rocky or gravel-bottomed pools. Only females dwell upstream; males tend to stay in the lower, estuarine reaches of rivers. Juveniles feed on zooplankton; adult on insects, crustaceans and fishes. Life cycle is catadromous: flood events between May and August trigger a downstream spawning migration to estuaries. Plant thickets and sandbars are known sites for egg deposition (Ref. 44894). A 63 cm LCF female was caught and released in Lake Samsonvale, SE Queensland with an estimated weight of more than 4.5 kg (Stephen T. Poole, pers.comm. elops1@yahoo.com, 03/09).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; sportvis: ja
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00421 - 0.02854), b=3.05 (2.83 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (tmax=18; k=0.20).
Kwetsbaarheid van de visserij (Ref.
59153): Moderate to high vulnerability (48 of 100).
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