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Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Andromakhe: Named for Áνδρομάχη, Andromakhe (‘battle of men’), a character in Greek mythology, she is the wife of Hector, Prince of Troy, and, in Homer’s epic poem Iliad, the mother of Ἀστυάναξ, Astyanax (‘city protector’).; saguazu: Specific name derived from Guarani language word sa (eye) guazú (large)..

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

Freshwater; benthopelagic. Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Arroyos Once Vueltas and Shangay of the Río Uruguay in Argentina.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.2 cm SL male/unsexed; (Ref. 94153)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 12; Anal soft rays: 35; Vertebrae: 31 - 33. Maxillary teeth two or three; third or fourth tooth of outer premaxillary series inserted posteriorly to the rest; large eye 41-45% HL; first anal fin ray inserted anterior to last dorsal fin ray; anal fin rays iv-vi, 25-29; and perforated scales in lateral line series 37-39 (Ref. 52391).

Inhabits streams with sandy-rocky bottom, riffles, small falls and pools (Ref. 52391).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Casciotta, J.R., A.E. Almiron and M.M. Azpelicueta, 2003. A new species of Astyanax from río Uruguay basin, Argentina (Characiformes: Characidae). Ichthyol. Explor. Freshwat. 14(4):329-334. (Ref. 52391)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 04 March 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Anatomy
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

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Andromakhe saguazu (Casciotta, Almirón & Azpelicueta, 2003)