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Mugiliformes (Mullets) >
Mugilidae (Mullets)
Etymology: Pseudomyxus: Name from the genus Myxus preceeded by Greek prefix 'pseudo' meaning 'false'.
More on author: Valenciennes.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; acqua dolce; salmastro demersale; catadromo (Ref. 51243). Subtropical; 25°S - 35°S
Africa: endemic to South Africa, in east coastal estuaries and rivers from the Breë River to Kosi Bay (Ref. 7248, 52193).
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 23.0  range ? - ? cm
Max length : 45.0 cm FL maschio/sesso non determinato; (Ref. 52193)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 5; Raggi dorsali molli (totale) : 8; Spine anali: 3; Raggi anali molli: 9.
Body shape (shape guide): fusiform / normal.
Adults occur in freshwater to estuarine conditions. Adults breed at sea, throughout the year; juveniles move into estuaries and enter rivers usually in late winter or early spring (Ref. 52193). Females remain in freshwater for 7 years, males for 4 years (Ref. 52193). Return to estuaries before maturing sexually prior to spawning (Ref. 52193). Oviparous, eggs are pelagic and non-adhesive (Ref. 205). Feed on benthic algae and small invertebrates over muddy bottom (Ref. 6465). Decline in population from obstruction, by dams and weirs, of free passage into rivers.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Breed at the sea throughout the year. Juveniles move into estuaries and enter rivers usually in late winter or early spring. Males remain in freshwater until 4 years, females for up to 7 years. Fish return first to estuaries before maturing sexually prior to spawning (Ref. 7248).
Thomson, J.M., 1986. Mugilidae. p. 344-349. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC; Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3573)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale; Acquario: Commerciale
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 15.3 - 24.9, mean 22.6 °C (based on 20 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00665 - 0.02075), b=2.97 (2.83 - 3.11), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 2.8 ±0.27 se; based on food items.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Moderate vulnerability (40 of 100).
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