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) > Stethaprioninae
Etymology: Brachychalcinus: Greek, brachys, eia = short + Greek, chalkos = brass (Ref. 45335); reisi: Named for Roberto Esser dos Reis, for his great contributions to the knowledge of the Stethaprioninae and the Neotropical ichthyology as a whole. Used as a genitive noun.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
South America: Upper Rio Curuá, Rio Xingu basin in southern Pará State, Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 6.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 118114)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 12; 臀鰭軟條: 32 - 35; 脊椎骨: 34. Brachychalcinus reisi is distinguished from all other species of the genus by having a series of dark, conspicuous, wavy longitudinal stripes on the entire body (vs. longitudinal dark wavy stripes absent or restricted to middorsal portion of body) and by having 7-8 longitudinal scale rows between dorsal-fin origin and lateral line (vs. 8-12). In addition, it is diagnosed from B. copei (Steindachner, 1883), B. retrospina Boulenger, 1892 and B. parnaibae by having 9 branched dorsal-fin rays (vs. 10-11). It can be differentiated from B. nummus Böhlke, 1958 and B. orbicularis (Valenciennes, 1850) by having 8-9 horizontal scale rows between the lateral line and pelvic-fin origin (vs. 10-11). It further differs from B. nummus by having numerous paralleled arranged scale radii (vs. few divergent arranged scale radii) (Ref. 118114).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Garcia-Ayala, J.R., W.M. Ohara, M.L. Pastana and R.C. Benine, 2017. A new species of Brachychalcinus (Characiformes: Characidae) from the rio Xingu basin, Serra do Cachimbo, Brazil. Zootaxa 4362(4):564-574. (Ref. 118114)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [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).
營養階層 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
