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> Characiformes (Characins) > Characidae (Characins; tetras) > Stevardiinae
Etymology: Diapoma: Greek, dis, dia = through + Greek, poma = cover (Ref. 45335); nandi: Name from a word derived from the Guaraní language, which means inconsequential; referring to its lack of remarkable external characteristics.

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

; süßwasser benthopelagisch. Tropical

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South Armerica: Argentina.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 5.9 cm SL Männchen/unbestimmt; (Ref. 119400); 5.3 cm SL (female)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt) : 7 - 8. This species is distinguished by the followinf characters: a terminal mouth; dorsal fin with two unbranched and eight branched rays'; pelvic fine with one unbranched and six branched rays; no caudal-fin organ; differs from its congeners by having unmodified scales on the lower caudal-fin lobe, lack of enlarged opercle and subopercle, incomplete lateral line, hyaline adipose fin, anal-fin distal border straight or slightly convex in adult males, large tricuspid teeth on anterior region of the dentary, distal arrangements of the anal-fin bony hooks in adult males and middle caudal-fin rays lacking a large round blotch (Ref. 119400).

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

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Vanegas-Ríos, J.A., M.d.l.M. Azpelicueta and L.R. Malabarba, 2018. A new species of Diapoma (Characiformes, Characidae, Stevardiinae) from the Rio Paraná basin, with an identification key to the species of the genus. J Fish Biol. 93:830-841. (Ref. 119400)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

Nicht untersucht

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

FAO - Publication: search | FishSource |

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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=0.01585 (0.00672 - 0.03736), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±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).

Diapoma nandi Vanegas‐Ríos, Azpelicueta & Malabarba, 2018