Classification / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlasomatinae
Etymology: Vieja: Spanish, vieja = old woman (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten; brackvatten bentopelagisk; pH range: 7.0 - 8.0; dH range: 9 - 20. Tropical; 24°C - 30°C (Ref. 7335)
Central America: Atlantic slope, in the Usumacinta River drainage in Mexico, Guatemala and Belize.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm TL hane/ej könsbestämd; (Ref. 36377)
Inhabits lakes and the lower river valley with a slight tolerance for the brackish environment.
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Produces 300-500 fry per spawning (Ref. 7335). Reported to produce up to 1000 eggs and reach sexual maturity at 10 cm (Ref. 2060).
Conkel, D., 1993. Cichlids of North and Central America. T.F.H. Publications, Inc., USA. (Ref. 7335)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse; Akvarium: Kommersiell
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02692 (0.01216 - 0.05956), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.6 ±0.28 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).