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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 / kisaran kedalaman / distribution range
Ekologi
; air tawar dasar (demersal). Tropical
South America: Mana and Marowijne/Maroni river basins, and Potaro River.
Size / Weight / umur
Kematangan: Lm ? range ? - ? cm
Max length : 7.9 cm SL jantan/; (Ref. 35381)
Rather rare (7 to 8 specimens known) maybe due to the very specialized biotope in which Heptapterus longior might be present. It is therefore poorly identified, also considering that the original description, rather poor, identifies it only in comparison with H. longior starting from the size of the adipose fin and the more pointed caudal fin (Ref. 35381).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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)
Status IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Acuan
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00374 - 0.01688), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Acuan
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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