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).
Eponymy: Reverend Leonard Jenyns (1800–1893) was a clergyman and amateur naturalist. [...] (Ref. 128868), visit book page.
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; 河川洄游 (Ref. 51243). 亞熱帶的
South America: streams, rivers and lagoons of coastal areas and interior plains of Rio Grande do Sul (Brazil), Uruguay and Argentina.
南美洲: 溪流,Rio Grande do Sul(巴西) ,烏拉圭與阿根廷的沿岸區域與內部平原的河川與潟湖。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 31.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 79585); 最大體重: 330.00 g (Ref. 79585)
Occurs in ponds. Feeds on fish (Ref. 79585).
出現於池塘。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 溪流,Rio Grande do Sul(巴西) ,烏拉圭與阿根廷的沿岸區域與內部平原的河川與潟湖。
Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 04 March 2021
人類使用
漁業: 商業性
工具
特別的報告
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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=0.00933 (0.00719 - 0.01211), b=3.11 (3.07 - 3.15), in cm total length, based on LWR estimates for this species (Ref.
93245).
營養階層 (Ref.
69278): 4.0 ±0.60 se; based on food items.
Generation time: 3.5 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec=21).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
Nutrients (Ref.
124155): Calcium = 66.8 [17.7, 163.7] mg/100g; Iron = 1.5 [0.8, 3.5] mg/100g; Protein = 19.1 [17.1, 21.3] %; Omega3 = 0.824 [0.336, 2.190] g/100g; Selenium = 32.2 [13.3, 69.7] μg/100g; VitaminA = 51 [17, 144] μg/100g; Zinc = 1 [1, 1] mg/100g (wet weight);