分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Issue
Species-level distinctiveness of Tocantins and Amazonas Megalodoras not investigated.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 熱帶; 22°C - 25°C (Ref. 2059)
South America: Amazon, Tocantins and Essequibo River basins.
南美洲: 亞馬遜河， Tocantins 與 Essequibo 河流域。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 54 - ? cm
Max length : 53.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 9081); 60.0 cm SL (female); common length : 49.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 9081); 最大体重: 2.9 kg (Ref. 9081); 最大体重: 2.9 kg
Occurs in small groups and occasionally forms schools. Inhabits rivers. Is mainly diurnal. Feeds on the fruits of Licania longipetala and Astrocaryum jauary. Also feeds on pulmonate snails (Ref. 9086).
形成小群鱼群而且偶然地形成鱼群。 栖息于河。 主要日行性。 吃 Licania longipetala 与 Astrocaryum jauary 的果实。 也吃有肺的蜗牛。 (参考文献 9086)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 亞馬遜河， Tocantins 與 Essequibo 河流域。
Sabaj, M.H. and C.J. Ferraris Jr., 2003. Doradidae (Thorny catfishes). p. 456-469. 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. 37054)
人类利用
渔业: 商业性
工具
特别资料
下载 XML
网络资源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00559 - 0.01790), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 2.7 ±0.39 se; based on food items.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).
