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> Characiformes (Characins) > Characidae (Characins; tetras) > Tetragonopterinae
Etymology: Tetragonopterus: Name from Greek words: 'Tetra' meaning four; 'gonia' meaning angle; 'pteron' for fin; referring to the evident tetragonal shape of the body (Ref. 124043); kuluene: Named for Rio Culuene (indigenous spelling), the type locality of this new speciesl; nun in apposition..

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

; süßwasser pelagisch. Tropical

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South America: Brazil.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 6.4 cm SL Männchen/unbestimmt; (Ref. 124043)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt) : 9; Afterflossenweichstrahlen: 26 - 30; Wirbelzahl: 30 - 31. This species is distinguished from its congeners, except T. anostomus, by having only 1 (vs. 2) conspicuous humeral mark; differs from T. anostomus by having a terminal mouth (vs. subsuperior mouth); differs from T. anostomus, T. araguaiensis by the number of gill rakers of the first gill arch, lower 12-13 and upper 8-9, limbs (vs. 17-20 and 10-12 respectively); differs from all congeners, except T. anostomus, T. denticulatus, T. juruena, by having principal dentary teeth 5-6 (vs. 4) and with thinner and sharper teeth (vs. more robust teeth); differs from T. denticulatus by the numbe of scale rows between lateral line and dorsal-fin origin 6 (vs. 7); differs from T. argenteus by the number of predorsal scales 8 (vs. 11-17); differs from T. carvalhoi by the presence of a rounded dark mark on the caudal peduncle (vs. a lozenge-shaped dark mark); differs from T. rarus by the absence of dark longitudinal stripes on the trunk (vs. presence); differs from T. georgiae, T. rarus by the scale rows between lateral line and pelvic-fin origin 3.5 (vs. 4.5-5.5); differs from T. ommatus by the number of maxillary teeth 2-5 (vs. 8-7) and by having the mark centered on caudal peduncle (vs. mark limited to posterior portion of caudal peduncle) (Ref. 124043).

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

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Silva, G.S.C., B.F. Melo, C. Oliveira and R.C. Benine, 2016. Revision of the South American genus Tetragonopterus Cuvier, 1816 (Teleostei: Characidae) with description of four new species. Zootaxa 4200(1):1-46. (Ref. 124043)

IUCN Rote Liste Status (Ref. 130435)

Nicht untersucht

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02188 (0.00852 - 0.05619), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Tetragonopterus kuluene Silva, Melo, Oliveira & Benine, 2016