Klassifizierung / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Astronotinae
Etymology: Astronotus: Greek, astra = ray + Greek, noton = back (Ref. 45335).
More on author: Heckel.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch. Tropical
South America: southern parts of the Amazon (upper Madeira River) and the upper Paraguay basins; introduce elsewhere.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 24.0 cm SL Männchen/unbestimmt; (Ref. 36377); common length : 25.0 cm TL Männchen/unbestimmt; (Ref. 12251)
Rückenflossenweichstrahlen (insgesamt) : 16 - 24; Afterflossenweichstrahlen: 15 - 21. This species is distinguished from its congeners by the following characters: 2 supraneural bones; spinous process (hypurapophysis) on the anterosuperior border of the parahypural bone (hypural complex); sagitta otolith elliptical and smooth-lobed margins, rostrum process short, posterior region of the otolith straight or flat, the aspect ratio of sagitta otoliths AR = 0.585, the roundness index Rd = 0.543; morphometric index 0.735: mean head length 35.01% SL, mean diameter of the orbit 7.73% SL, mean pre-orbital depth 0.14% SL, mean snout length 5.36% SL (Ref. 126783).
Cross section: compressed.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36377)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.03467 (0.01677 - 0.07171), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
Widerstandsfähigkeit (Ref. 120179) |
mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Assuming Fec<1000). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low to moderate vulnerability (32 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Unknown.
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