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> Characiformes (Characins) > Acestrorhynchidae (Smallscale pike characins) > Roestinae
Etymology:

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

; sötvatten bentopelagisk. Tropical

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South America: Rio Tocantins basin, Brazil.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 14.2 cm SL hane/ej könsbestämd; (Ref. 33012)

Short description Morfologi | Morfometri

Taggstrålar i analfenan 4-5; Mjukstrålar i analfenan: 38 - 41; Ryggkotor: 39. Roestes itupiranga has fewer branched anal-fin rays (38-41) than R. molossus (43-47) and than R. ogilviei (41-43). Can be further distinguished from R. ogilviei by having more scale rows between lateral line and anal-fin origin (18-19, versus 15-16) and more scale rows around caudal peduncle (31-31, versus 27-28).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Menezes, N.A. and C.A.S. de Lucena, 1998. Revision of the subfamily Roestinae (Ostariophysi: Characiformes: Cynodontidae). Ichthyol. Explor. Freshwat. 9(3):279-291. (Ref. 33012)

IUCN Red List Status (Ref. 130435)

Sårbar, se IUCNs rödlista (VU) (B1ab(iii)); Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00479 (0.00182 - 0.01257), b=3.13 (2.90 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 4.0 ±0.7 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

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

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Roestes itupiranga Menezes & Lucena, 1998