分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335).
Eponymy: Dr Samuel Frederick Hildebrand (1883–1949) was born of immigrant parents who never learned to speak English and was brought up as a farm boy in Indiana. [...] (Ref. 128868), visit book page.
More on author: Schultz.
Issue
See Harold & Vari (1994:20) for detailed redescription.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Maracaibo Lake basin and Gulf of Venezuela.
南美洲: Maracaibo 湖流域與委內瑞拉灣。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.3 cm SL 雄鱼/尚未辨别雌雄; (Ref. 28667)
Found in well oxygenated, fast flowing waters (Ref. 26543). Not encountered above an elevation of 1,000 m (Ref. 26543). Omnivore, feeding on benthic invertebrates and small seeds (Ref. 26543).
发现于溶氧量高的，快速流动的水了。 (参考文献 26543) 不见到了上方海拔 1,000 公尺。 (参考文献 26543) 杂食动物, 吃底栖的无脊椎动物与小的种子。 (参考文献 26543)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: Maracaibo 湖流域與委內瑞拉灣。
Harold, A.S. and R.P. Vari, 1994. Systematics of the Trans-Andean species of Creagrutus (Ostariophysi: Characiformers: Characidae). Smith. Contrib. Zool. (551):31 p. (Ref. 28667)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
人类利用
工具
特别资料
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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=0.01413 (0.00635 - 0.03140), b=2.99 (2.80 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.7 ±0.25 se; based on food items.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
