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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335).
More on authors: Mahnert & Géry.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Paraguay River basin in central and northern Paraguay.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 5.8 cm SL オス/雌雄の選別がない; (Ref. 35140)
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Mahnert, V. and J. Géry, 1988. Les genres Piabarchus Myers et Creagrutus Günther du Paraguay, avec la description de deux nouvelles espèces (Pisces, Ostariophysi, Characidae). Rev. Fr. Aquariol. 15(1):1-8. (Ref. 42679)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
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インターネットの情報源
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=0.00851 (0.00408 - 0.01776), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 2.4 ±0.1 se; based on size and trophs of closest relatives
回復力 (Ref.
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).