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> Siluriformes (Catfishes) > Heptapteridae (Three-barbeled catfishes)
Etymology: Chasmocranus: Greek, chanos, -eos, ous, and chasma, -atos = abyss, mouth opened, inmensity + Greek, kranion = skull (Ref. 45335).
More on author: Eigenmann.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal. Tropical

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

South America: Coastal drainages from Guyana to Suriname, Negro, Orinoco and Xingu River basins.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 17.0 cm SL Männchen/unbestimmt; (Ref. 36914)

Captured in creeks with rocky bottoms and in areas where the water changes level (Ref. 27188). Lies hidden under rocks and Podostemaceae. Its color pattern, like that of the other Heptapterus, provides perfect camouflage. The species which occur more frequently with it are: Imparfinis minutus, Moenkhausia oligolepis, Pyrrhulina filamentosa, Characidium fasciadorsale [= Characidium zebra] and Crenicichla albopunctata (Ref. 35381).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Bockmann, Flavio | Partner

Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. 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. 36914)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 21 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Trophic ecology
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Räuber

Ecology
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Anatomy
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Physiology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00851 (0.00473 - 0.01530), b=3.00 (2.85 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (11 of 100).

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Chasmocranus longior Eigenmann, 1912