分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Characidae (Characins; tetras)
脂鯉科 (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性; pH range: 6.0 - 8.0; 深度上下限 0 - 6 m (Ref. 82388).
South America: Fonce River, Magdalena basin in Colombia.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 8.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 82388)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
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
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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 瀕危狀態 (Ref. 130435: Version 2024-1)
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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 (0.00599 - 0.03330), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
