分類 / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.0 - 8.0; 深さの範囲 0 - 6 m (Ref. 82388). Tropical
South America: Fonce River, Magdalena basin in Colombia.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 8.3 cm SL オス/雌雄の選別がない; (Ref. 82388)
簡単な記述
検索表 | 形態学 | 形態計測学
Differs from all species of the genus by the following characters: number of anterior anal-fin rays covered by a scales row 4-11 (vs.11-26 except Bryconamericus orinocoens with 1-6, from which is distinguished by the higher number of branched anal-fin rays 19 -26 vs. 16-17); lateral line scales 39-45 (vs.31-32); in males, spines number on each fin rays (anal 2-10 vs. 9-23; pelvic 2-9 vs. 8-20; pectoral 2-6 vs.9-28; and dorsal 3-6 vs. 6-18 (Ref. 82388).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Román-Valencia, C., J.A. Vanegas-Ríos and R.I. Ruiz-C., 2009. Especie nueva del género Bryconamericus (Teleostei: Characidae) del río Fonce, sistema río Magdalena, Colombia. Revista Mexicana de Biodiversidad 80:455- 463. (Ref. 82388)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
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 (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00599 - 0.03330), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
