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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335).
More on author: Günther.
Issue
See Menezes, 1987:22 for diagnosis.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Rio Doce and Rio das Velhas basins.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 18.5 cm SL オス/雌雄の選別がない; (Ref. 130067); 最大公表体重: 153.00 g (Ref. 130067)
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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のレッドリストの状況は (Ref. 130435: Version 2024-1)
Human uses
用具
特記事項
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インターネットの情報源
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=0.01047 (0.00539 - 0.02033), b=3.15 (2.98 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (Ref.
69278): 4.1 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 手段, 1.4年~4.4年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).