Teleostei (teleosts) >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335).
More on author: Steindachner.
Issue
See Menezes, 1987: 21 for diagnosis.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical
South America: Rio Jequitinhonha basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.7 cm SL male/unsexed; (Ref. 35687)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Menezes, N.A., 1987. Tres especies novas de Oligosarcus Günther, 1864 e redefinacao taxonomica das demais especies do genero (Osteichthyes, Teleostei, Characidae). Bol. Zool. (BOLZ) 11:1-39. (Ref. 35506)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00428 - 0.02132), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.6 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).