分類 / Names
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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Thayeriinae
Eponymy: Philip Newbold was a friend of the author. He died while working on experiments on Lake Maracaibo. We have been unable to find anything more about him, or the nature of his experiments. (Ref. 128868), visit book page.
Issue
See Taphorn (1992: 221-222) for taxonomical/ecological remarks.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical; 25°C - 29°C (Ref. 13614)
South America: Orinoco River basin.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 5.0 cm SL オス/雌雄の選別がない; (Ref. 38376)
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00683 - 0.03057), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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