Actinopteri (ray-finned fishes) > Characiformes
(Characins) > Characidae
(Characins; tetras) > Stevardiinae
Etymology: Acrobrycon: Greek, akro = summit, topmost + Greek, bryko = to roar (Ref. 45335).
More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical
South America: Andean piedmont of the western and southwestern portions of the Amazon basin in Peru and Bolivia and northwestern portion of the Río de La Plata basin in Argentina.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL male/unsexed; (Ref. 94771)
(total): 10. Acrobrycon ipanquianus differs from A. starnesi by having 51-60 perforated lateral-line scales (vs. 61-66), 19-21 horizontal scales rows around the caudal peduncle (vs. 22-26), depth of the body at the dorsal-fin origin 49.0-51.2% of SL (vs. 25.8-31.0%), horizontal diameter of the eye 20.2-29.8% of HL (vs. 30.4-36.5% HL), and interorbital width 29.1-40.2% of HL (vs. 24.6-29.8% HL). It can be diagnosed from A. ortii by having the following characters: 23-27 branched anal-fin rays (vs. 19-21); body depth at the dorsal-fin origin 49.0-51.2% SL (vs. 22.8-37.4%); depth at the dorsal-fin origin relative to the horizontal eye diameter 390-820% (vs. 260-380%); horizontal eye diameter relative to the interorbital width 100-180% (vs. 80-90%); and caudal-peduncle length relative to the body depth at the dorsal-fin origin 240-440% (vs. 160-230%) (Ref. 94771).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Arcila, D., R.P. Vari and N.A. Menezes, 2013. Revision of the neotropical genus Acrobrycon (Ostariophysi: Characiformes: Characidae) with description of two new species. Copeia 2013(4):604-611. (Ref. 94771)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00630 - 0.03168), b=2.99 (2.80 - 3.18), 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
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).