分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Characidae (Characins; tetras)
脂鯉科 (Characins; tetras) > Stethaprioninae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335); varii: Named for Richard P. Vari for his outstanding contribution to the knowledge of South American freshwater fishes..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
South America: Rio Jacuí basin in Rio Grande do Sul, Brazil.
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 19.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 104692)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 11.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Menezes, N.A. and A.C. Ribeiro, 2015. A new species of the lowland Oligosarcus Günther species group (Teleostei: Ostariophysi: Characidae). Neotrop. Ichthyol. 13(3):541-546. (Ref. 104692)
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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=0.01000 (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).
營養階層 (Ref.
69278): 4.1 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).