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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Rhinopetitia: Greek, rhinos = nose + French, petit = small (Ref. 45335); potamorhachia: From the Greek potamo, meaning river, rhachia, meaning beach, in reference to the fact that most specimens of R. potamorhachia were collected on sandy beaches along the Rio Teles Pires. An adjective.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
South America: Rio Teles Pires, Rio Tapajós basin in Pará, Brazil.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 4.4 cm SL macho/indeterminado; (Ref. 111429); 4.5 cm SL (female)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Raios dorsais (total) : 10; Raios anais : 18 - 20. Rhinopetitia potamorhachia differs from its only congener, R. myersi Géry 1964, by the presence of distinct dark midlateral body stripe (vs. absence) overlaying an inconspicuous, round humeral blotch (vs. absence of humeral blotch); teeth in both premaxillary tooth rows with
seven to nine cusps and seven or eight cusps on the maxillary teeth (vs. outer series of premaxillary teeth with three cusps and inner series of premaxillary teeth with three to five cusps; maxillary teeth with three to five cusps) (Ref. 111429).
Found along sandy beaches of the Rio Teles Pires in an area significantly affected by the construction of the Teles Pires hydroelectric dam (Ref. 111429).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Netto-Ferreira, A.L., J.L.O. Birindelli, L.M. Sousa and N.A. Menezes, 2014. A new species of Rhinopetitia Géry 1964 (Ostariophysi: Characiformes: Characidae) from the Rio Teles Pires, Rio Tapajós basin, Brazil. J. Fish Biol. 84(5):1539-1550. (Ref. 111429)
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 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00635 - 0.03140), b=2.99 (2.80 - 3.18), 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).