分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Colossomatinae
Etymology: Mylossoma: Greek, mylo = mill + Greek, soma = body (Ref. 45335).
More on author: Cuvier.
Issue
See Machado-Allison & Castillo (1992: 19) for detailed morphology.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 5.0 - 7.8; dH range: ? - 20; 河川洄游 (Ref. 51243). 熱帶; 22°C - 28°C (Ref. 1672)
South America: rio Paraguai, lower Paraná and lower Uruguai rivers basins.
南美洲: 亞馬遜河, 奧里諾科河與巴拉圭- 巴拉納河的流域。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 17 - ? cm
Max length : 25.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 39031); 最大體重: 1.0 kg (Ref. )
脊椎骨: 35 - 36. This species differs from M. aureum by having the last abdominal spine reaching the anal-fin origin or almost so (vs. last abdominal spine clearly separated from the anal-fin origin), vertebrae 35-36 (vs. 38-39), and a conspicuous black blotch on opercle (vs. no black blotch or inconspicuous); differs from M. albiscopum by anal-fin with branched rays 26-32 (vs. 31-38); differs from M. unimaculatum by having circumpeduncular scales 30-34 (vs. 34-40), perforated scales on lateral line 74-98 (vs. 95-110) and vertebrae 35-36 (vs. 37) (Ref. 117280).
Reported to be an herbivore fish, which is highly dependent from the floodplains and of great economic importance for both commercial and sport fisheries (Ref. 117280).
在溪流與湖中生活在泥與淤泥之上。 吃魚，昆蟲與植物。 (參考文獻 9133)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 亞馬遜河, 奧里諾科河與巴拉圭- 巴拉納河的流域。
Mateussi, N.T.B., C. Oliveira and C.S. Pavanelli, 2018. Taxonomic revision of the Cis-Andean species of Mylossoma Eigenmann & Kennedy, 1903 (Teleostei: Characiformes: Serrasalmidae). Zootaxa 4387(2):275-309. (Ref. 117280)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 21 December 2020
人類使用
漁業: 商業性; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02570 (0.01342 - 0.04923), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 2.8 ±0.36 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
Nutrients (Ref.
124155): Calcium = 110 [51, 257] mg/100g; Iron = 1.53 [0.77, 3.44] mg/100g; Protein = 17.7 [15.7, 19.8] %; Omega3 = 0.393 [0.149, 1.113] g/100g; Selenium = 89.5 [34.0, 207.2] μg/100g; VitaminA = 28.6 [9.3, 83.5] μg/100g; Zinc = 1.84 [1.23, 2.68] mg/100g (wet weight); based on
nutrient studies.
