分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Colossomatinae
Etymology: Colossoma: Greek, kolos = short, truncated + Greek, soma = body (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 5.0 - 7.8; dH range: ? - 20; 河川洄游 (Ref. 51243); 深度上下限 5 - ? m. 熱帶; 22°C - 28°C (Ref. 1672); 15°S - 35°S
South America: Amazon and Orinoco basins as wild form; pisciculture form largely distributed in South America.
南美洲: 如野生的形式亞馬遜河與奧里諾科河流域; 養殖的型式主要地分佈於南美洲了。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 24 - ? cm
Max length : 108 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); common length : 70.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 9987); 最大体重: 40.0 kg (Ref. 72380)
This species is usually solitary. Adults stay in flooded forests during first 5 months of flooding and consume but fruits and grains. Young and juveniles live in black waters of flood plains until their sexual maturity. Feeds on zooplankton, insects, snails and decaying plants (Ref. 32894). Used in aquaculture because it can live in mineral poor waters and is very resistant to diseases. Marketed fresh and frozen (Ref. 9987).
这种通常是独居性。 成鱼在洪水泛滥的最初 5个月的时候停留在被水淹没的森林中而且只吃果实与谷粒。 幼鱼与稚鱼生活于冲积平原的黑色水域直到他们的性成熟。 吃浮游动物，昆虫，蜗牛而且腐败植物.(参考文献 32894) 因为它能生活于矿物少量的水域而且是对疾病非常有抵抗性，所以被用于水产业了。 在市场上销售生鲜和冷冻.(参考文献 9987)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 如野生的形式亞馬遜河與奧里諾科河流域; 養殖的型式主要地分佈於南美洲了。
Géry, J., 1977. Characoids of the world. Neptune City ; Reigate : T.F.H. [etc.]; 672 p. : ill. (chiefly col.) ; 23 cm. (Ref. 598)
人类利用
渔业: 低经济; 养殖: 商业性; 水族馆: 公众的水族馆
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02239 (0.01185 - 0.04230), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 2.0 ±0.0 se; based on diet studies.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (K=0.23; Fec=7,000-300,000).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
Nutrients (Ref.
124155): Calcium = 43.6 [17.8, 103.8] mg/100g; Iron = 1.09 [0.51, 2.44] mg/100g; Protein = 17.6 [15.5, 19.7] %; Omega3 = 0.28 [0.10, 0.78] g/100g; Selenium = 125 [45, 312] μg/100g; VitaminA = 14 [4, 47] μg/100g; Zinc = 1.43 [0.94, 2.22] mg/100g (wet weight); based on
nutrient studies.
