Klassifizierung / Names
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Siluriformes (Catfishes) >
Aspredinidae (Banjo catfishes) > Aspredininae
Etymology: Platystacus: Greek, platys = flat, broad + Latin, acus = needle (Ref. 45335).
More on author: Bloch.
Taxonomic Remarks
See Mees (1987: 186) for detailed description. Friel (1994: 86) removed this species from Aspredo to preserve monophyly of that genus.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser; brackwasser demersal; pH range: 6.8 - 8.2; dH range: 12 - 35. Tropical; 22°C - 25°C (Ref. 2060)
Central and South America: Venezuela to northern Brazil (including the lower portions of coastal rivers).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 31.8 cm SL Männchen/unbestimmt; (Ref. 36695); common length : 15.0 cm TL Männchen/unbestimmt; (Ref. 5217)
Occurs mainly in brackish water. Found on soft bottoms of shallow turbid water near river mouths. Reported to migrate from estuary into freshwater, but actual spawning apparently takes place in brackish water (Ref. 6868). The species has a peculiar mode of egg incubation wherein the female banjo catfish carries the eggs firmly attached to the underside of the body. This seems to be an adaptation to facilitate the oxygenation of the eggs in muddy environments. Reproduction probably occurs during the earlier part of the year (Ref. 35381).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Females carry their eggs and young attached to the ventral surface of the body.
Friel, J.P., 2003. Aspredinidae (Banjo catfishes). p. 261-267. 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. 36695)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell; Aquarium: Kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00131 - 0.00552), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Anfälligkeit der Fischerei (Ref.
59153): Low to moderate vulnerability (29 of 100).
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