Classificação / Names
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Characiformes (Characins) >
Hemiodontidae (Halftooths)
Etymology: Hemiodus: Greek, hemi = half + Greek, odous = teeth (Ref. 45335); iratapuru: Named in in allusion to its type locality, the Rio Iratapuru. It is a vernacular Portuguese word, derived from the Tupi-Guarani. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
South America: Rio Jari and its tributary, Rio Iratapuru in Brazil.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 13.4 cm SL macho/indeterminado; (Ref. 93237)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Raios dorsais (total) : 10 - 11; Raios anais : 10 - 12. Can be diagnosed from Hemiodus quadrimaculatus group and from H. ternetz i, H. thayeria and H. tocantinenss by the presence of a midlateral round spot and absence of uninterrupted longitudinal dark stripe from the opercular margin to the base of the caudal fin. Differs from the species of the Hemiodus quadrimaculatus group by having the following characters: 43-46 perforated scales in the lateral line; eight or nine longitudinal series of scales above the lateral line; five longitudinal series of scales below the lateral line; 10-12 teeth on the upper jaw. Distinguished from other species of Hemiodus , except those mentioned above, by the form of the distal border of the multicuspid teeth (vertically elongate, forming an arrowhead v. teeth with border straight or convex). Differs from all congeners, except Hemiodus atranalis , by having the first branched dorsal-fin ray elongated in the largest specimens (v. lacking such elongation) (Ref. 93237).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Langeani, F. and C.R. Moreira, 2013. Hemiodus iratapuru, a new species of Hemiodontidae from the Rio Jari, Amazon Basin, Brazil (Teleostei, Characiformes). J. Fish Biol. 82(4):1259-1268 (Ref. 93237)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2024-1)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00223 - 0.01026), b=3.19 (3.01 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
