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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 Ökologie

; süßwasser benthopelagisch. Tropical

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South America: Rio Teles Pires, Rio Tapajós basin in Pará, Brazil.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 4.4 cm SL Männchen/unbestimmt; (Ref. 111429); 4.5 cm SL (female)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt): 10; Afterflossenweichstrahlen: 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).

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

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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)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 18 May 2022

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 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01479 (0.00653 - 0.03348), b=2.96 (2.77 - 3.15), 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).

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Rhinopetitia potamorhachia Netto-Ferreira, Birindelli, Sousa & Menezes, 2014