分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes)
電鰻目 (Knifefishes) >
Hypopomidae (Bluntnose knifefishes)
無齒刀魚科 (Bluntnose knifefishes)
Etymology: Microsternarchus: Greek, mikros = small + Greek, sternon = breast + Greek, archos = anus (Ref. 45335).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 大洋性.
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 : 11.9 cm TL 雄魚/尚未辨別雌雄; (Ref. 132455)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
臀鰭軟條: 152 - 173. This species is distinguished from its congeners by the following set of characters: distinct irregular suborbital blotches present, with chromatophores more concentrated near to the rictus and immediately below the orbits; caudal filament length in both sexes 35.1-36.8% TL; small black spots overlying the mid-dorsal region of the body; number of displaced haemal spines, three or four; dentary morphology, coronoid process of dentary continues posteriorly beyond dentary hook; anal-fin rays 152-173 (Ref 132455).
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
Sousa, T., W.B. Wosiacki, J. Muriel-Cunha, B.S. Prudente, R.S. Sousa and L.A.W. Peixoto, 2024. A new species of the electric fish Microsternarchus Fernández-Yépez 1968 (Gymnotiformes: Hypopomidae) from the lower Amazon basin, Brazil. Zootaxa 5448 (4): 508-518. (Ref. 132455)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
人類使用
漁業: 沒有興趣
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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): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00141 - 0.00980), b=3.06 (2.83 - 3.29), 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
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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