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> Characiformes (Characins) > Hemiodontidae (Halftooths)
Etymology: Hemiodus: Greek, hemi = half + Greek, odous = teeth (Ref. 45335).
More on author: Bloch.

Issue
See Géry, Planquette & Le Bail (1991: 22, Pl. 6, Fig. 1) and Santos; Jegú & Merona (1984: 30) for descriptions and figures; synonymy above is based on personal observation and examination of types. Lectotypes of H. microcephalus and H. kappleri by present designation.

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

; süßwasser benthopelagisch; pH range: 5.5 - 7.5; dH range: ? - 20. Tropical; 23°C - 26°C (Ref. 2060)

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South America: Amazon, Tocantins, Capim, Suriname, Camopi, and Oyapock River basins.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 32.9 cm SL Männchen/unbestimmt; (Ref. 125983); 29.4 cm SL (female); max. veröff. Gewicht: 529.50 g (Ref. 125983); max. veröff. Gewicht: 529.50 g

Occurs in fast-flowing rivers over rocky substrate. Abundant in the lower part of rivers. Feeds on detritus and periphyton. Mature at about 11 cm; breeds during the rainy season (Ref. 12225). Iteroparous synchronous spawner (Ref. 51777).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Distinct pairing (Ref. 205).

Hauptreferenz Upload your references | Referenzen | Koordinator : Langeani, Francisco | Partner

Géry, J., 1977. Characoids of the world. Neptune City ; Reigate : T.F.H. [etc.]; 672 p. : ill. (chiefly col.) ; 23 cm. (Ref. 598)

IUCN Rote Liste Status (Ref. 130435: Version 2024-1)

nicht bedroht (LC) ; Date assessed: 20 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: weniger kommerziell; Aquarium: Kommerziell

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01175 (0.00941 - 0.01468), b=3.10 (3.04 - 3.16), in cm total length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 2.0 ±0.00 se; based on food items.

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (30 of 100).

Preiskategorie (Ref. 80766): Unknown.

Hemiodus unimaculatus (Bloch, 1794)