分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Stethaprioninae
Etymology: Brachychalcinus: Greek, brachys, eia = short + Greek, chalkos = brass (Ref. 45335); sabaji: Name sabaji in honor of Mark Henry Sabaj and his contribution to the knowledge of South American freshwater fishes.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性.
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
South America: Brazil.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 7.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 132463)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 13; 臀鰭軟條: 27 - 31. This species is distinguished from its congeners by the following set of characters: conspicuous longitudinal dark stripes across the body depth; branched dorsal-fin rays 9; predorsal spine 5.2-6.0; preanal spine 5.0-5.7; faint second humeral mark; predorsal spine 5.2-6.0 mm SL; preanal spine 5.0-5.7 mm SL; scales with few curved radii; scale rows between lateral line and midventral scale series 9-10; longitudinal scale rows between the lateral line and dorsal-fin origin 7-8 (Ref. 132463).
Cross section: compressed.
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Garcia-Ayala, J.R., F.C.T.D. Lima, C.D.S. Gama and R.C. Benine, 2024. A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapa and Para states, northern Brazil. Neotrop. Ichthyol. 22(1):e230070. (Ref. 132463)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
人類使用
漁業: 沒有興趣
工具
特別的報告
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.01585 (0.00707 - 0.03555), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (14 of 100). 🛈 |