分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Bagridae (Bagrid catfishes)
鱨科 (Bagrid catfishes)
Etymology: Mystus: Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335); alasensis: Name derived from the Sungai Alas (Alas River) drainage.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 居於水底的. 熱帶
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Asia: Sungai Alas drainage in Sumatra, Indonesia.
亞洲: 在印尼的蘇門答臘的 Sungai Alas 流域。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 10.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 55439)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 1; 背的軟條 (總數) : 7; 臀鰭軟條: 12 - 14; 脊椎骨: 38 - 41. Distinguished from all other Southeast Asian congeners, except Mystus castaneus, M. impluviatus and M. nigriceps by the following combination of characters: a moderately long (29-37% SL), low adipose-fin, uniform body color, fossa on midline of the cranium not reaching to the base of the supraoccipital process and extremely long maxillary barbels that reach beyond the base of the caudal fin (Ref. 55439). Differs from M. castaneus, M. impluviatus and M. nigriceps in lacking a dark triangular mark at the base of the caudal fin. Further differs from M. nigriceps in having a longer (34.3-36.3% SL vs. 26.3-31.4), deeper (6.7-7.5% SL vs. 4.1-6.0) adipose fin and longer pelvic fins (17.6-20.2% SL vs. 13.4-16.7); and from M. castaenus and M. impluviatus in having a more gently-sloping dorsal profile of the head. Differs also from M. impluviatus in lacking (vs. presence) of fontanel on the supraoccipital and having a deeper adipose fin (6.7-7.5% SL vs. 4.7-6.0) (Ref. 55439).
Body shape (shape guide): elongated.
與所有的其他東南亞同類區分了, 除了 Mystus castaneus, M. impluviatus 與 M. nigriceps 以外藉由跟隨組合特徵: 一個中等長度的 (29-37% SL) 又低的脂鰭，均勻的身體顏色, 在頭蓋的中線上的窩不延伸到上枕骨突起的基底與達到超過尾鰭基底的非常長顎的觸鬚.(參考文獻 55439) 有別於 M. castaneus, M. impluviatus 與 M. nigriceps 在尾鰭基底沒有深色的三角形的標誌。 進一步在有一個更長的 (34.3-36.3% SL vs.26.3-31.4), 較深的 (6.7-7.5% SL vs.4.1-6.0) 的脂鰭與較長的腹鰭有別於 M. nigriceps;(17.6-20.2% SL vs.13.4-16.7) 而且從 M. castaenus 與 M. impluviatus 在有一個方面頭部的比較緩斜坡背面輪廓。 也不同於 M. impluviatus 在缺乏 (vs. 出現) 囟門在上枕骨上而且有一個較深的脂鰭 (6.7-7.5% SL vs.4.7-6.0).(參考文獻 55439)
Facultative air-breathing in the genus (Ref. 126274); Oviparous, distinct pairing possibly like other members of the same family (Ref. 205).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 在印尼的蘇門答臘的 Sungai Alas 流域。
Ng, H.H. and R.K. Hadiaty, 2005. Two new bagrid catfish (Teleostei: Bagridae) from the Alas River drainage, northern Sumatra. Ichthyol. Explor. Freshwat. 16(1):83-92. (Ref. 55439)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00359 - 0.01926), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming Fec < 10,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
🛈
Nutrients (Ref.
124155): Calcium = 346 [186, 855] mg/100g; Iron = 3.23 [1.59, 5.89] mg/100g; Protein = 16 [15, 17] %; Omega3 = 0.356 [0.131, 0.935] g/100g; Selenium = 57.6 [20.7, 156.5] μg/100g; VitaminA = 78.2 [24.8, 240.5] μg/100g; Zinc = 2.6 [1.5, 4.3] mg/100g (wet weight);
