分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps)
鯉形目 (Carps) >
Cyprinidae (Minnows or carps)
鯉科 (Minnows or carps) > Cyprininae
Etymology: isthmus: The specific name is from the Latin 'isthmus' (narrow passage or neck of land), in reference to the narrow black bars on the body,.
More on authors: Tan & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性.
Asia: Sumatra and Borneo in Indonesia.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 78741)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 11; 臀鰭軟條: 8; 脊椎骨: 29 - 31. Differs from other congeners by having subinferior mouth, with a narrow lower jaw whose tip is angulous in ventral view. Can be further differentiated by the presence of small black mark immediately in front of anus with scattered chromatophores near it, visible in lateral view; lacking or very faintly marked bar 1; simple dorsal-fin rays black, black mark not reaching the first branched ray, rest of fin hyaline; posterior margin of last simple dorsal-fin ray with 22-26 serrae; bars narrow, width of bar 5 equal to ½ or less lateral row scale (Ref. 78741).
Occurs in lakes and large permanent water bodies in the floodplain. Caught in water column together with Hyalobagrus flavus (Bagridae), Pseudeutropius brachypopterus, P. moolenburghae (Schilbeidae) and Gymnochanda filamentosa (Ambassidae) (Ref. 78741).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Tan, H.H. and M. Kottelat, 2008. Revision of the cyprinid fish genus Eirmotus, with description of three new species from Sumatra and Borneo. Raffles Bull. Zool. 56(2):423-433. (Ref. 78741)
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 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00633 - 0.03455), b=3.02 (2.82 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.3 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).
