分类 / Names
俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
环境 / 气候 / 范围
生态学
; 淡水 底中水层性. 24°C - 30°C (Ref. 1672), preferred ?
South America: Amazon River basin, Rupununi and Oyapock Rivers.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 90.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 50892); 最大体重: 6.0 kg (Ref. 72380)
Body covered with very big scales; dorsal and anal fins almost fused with the caudal fin; 2 barbels at the extremity of the lower jaw; adult silvery, juvenile with blue glints and a yellow-orange bar (Ref. 12225).
Is an omnivore with a tendency to feed on fish at the surface. The superior position of the mouth allows it to capture its prey while swimming from below. Also jumps out of the water to feed on large insects (Coleoptera; Ref. 27548). It is capable of adapting to environments with low oxygen levels (Ref. 12225).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
The male carries eggs, larvae and early juveniles (alevinos) in his mouth (Ref. 1672), which lasts for nearly six weeks (Ref. 102836).
Ferraris, C.J. Jr., 2003. Osteoglossidae (Arowanas). p. 30. 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. 50892)
CITES (Ref. 94142)
Not Evaluated
人类利用
渔业: 商业性; 游钓鱼种: 是的; 水族馆: 商业性
工具
特别资料
下载 XML
网络资源
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.7656 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00140 - 0.00941), b=3.13 (2.91 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.48 se; Based on food items.
脆弱性 (Ref.
59153): Moderate vulnerability (39 of 100) .
