Classificação / Names
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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
Ecologia
; Água doce bentopelágico. Tropical
South Armerica: Argentina.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 5.9 cm SL macho/indeterminado; (Ref. 119400); 5.3 cm SL (female)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Raios dorsais (total) : 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).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2024-2)
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 = 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).
Nível Trófico (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
