分类 / Names
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Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Incertae sedis
Etymology: Psellogrammus: Greek, psellos, -e, -on = incomprehensible + Greek, gramma = letter, signal (Ref. 45335).
More on author: Eigenmann.
Issue
See Britski et. al. (1999:32) for description.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 5.5 - 6.8; dH range: ? - 12. 熱帶; 22°C - 28°C (Ref. 2059)
South America: Paraguay and São Francisco River basins.
南美洲: 巴拉圭與 Sao 弗朗西斯科河流域。
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 5.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 38376)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 巴拉圭與 Sao 弗朗西斯科河流域。
Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. 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. 38376)
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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=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
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).