分類 / Names
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Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Alestidae (African tetras)
Alestidae (African tetras)
Etymology: Micralestes: Greek, mikros = small + Greek,lestes = thief (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性; pH range: 6.5 - 7.5; dH range: 10 - 25. 熱帶; 23°C - 27°C (Ref. 2060)
Africa: widely distributed in the Congo basin (Ref. 42032). Also found in the Bénoué, Chad (Ref. 81279), Cross (Ref. 80290, 81279) and the Zambezi River (Ref. 5331, 80290). Report from Lake Tanganyika (Ref. 80290) needs confirmation; in the Lukuga River only known downstream of Niemba (Ref. 36901, 42032). Report from the Cubango/Okavango in Angola (Ref. 5331) unconfirmed (Ref. 120641).
非洲: 查德與 Benoue 流域。 在安哥拉的非洲，尚比西河與剛果河流域與庫邦河的其他部分.(參考文獻 5331)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 2880)
背棘 (總數) : 0; 背的軟條 (總數) : 10; 臀棘: 0; 臀鰭軟條: 17 - 22. Diagnosis: lateral line always complete, 24-27 (Ref. 80290) or 27-30 (Ref. 81279) lateral line scales. Anal fin with 3 unbranched and 15-18 (Ref. 80290) or 14-19 (Ref. 81279) branched rays. 10-15 (Ref. 80290) or 10-14 (Ref. 81279) gill rakers on lower part of first branchial arch. 6/8 premaxillary teeth; fins colorless or, at most, pinkish; tip of dorsal fin hyaline (Ref. 2880, 81279), no black apical tip (Ref. 80290). Scales of flank with melanophores concentrated on basal margin (Ref. 80290).
身體高度 3.2-4 倍標準的長度.(參考文獻 42032) 頭長 3.45-3.8 倍標準的長度.(參考文獻 42032) 犬齒數字: 在上頜 4-6 的外部列上, 在上頜 5-9 的內在列，下頜 6-8 的外部列上, 下頜 1 的內在列.(參考文獻 42032) 側線總是完成 (參考文獻 2880)). 在第一 ceratobranch 上的鰓耙.(參考文獻 2880) 銀色的身體有平滑的側面斑紋 (參考文獻 2880), 在鰓蓋後面的出發, 漸進地擴大而且終點在尾鰭的起源。 (參考文獻 42032) 側線鱗片的基底黑色的.(參考文獻 42032) 鰭淺灰色的沒有黑色的斑點.(參考文獻 2880)
Affinities: M. humilis is most similar and possibly conspecific with M. stormsi Boulenger, 1902, and M. sardina Poll, 1938; apart from coloration, it is distinguished from latter two species on the basis of slight differences in overlapping features (see Ref. 80290).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
非洲: 查德與 Benoue 流域。 在安哥拉的非洲，尚比西河與剛果河流域與庫邦河的其他部分.(參考文獻 5331)
Paugy, D. and S.A. Schaefer, 2007. Alestidae. p. 347-411. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) Poissons d'eaux douces et saumâtres de basse Guinée, ouest de l'Afrique centrale/The fresh and brackish water fishes of Lower Guinea, west-central Africa. Vol. 1. Coll. Faune et Flore tropicales 42. Istitut de recherche pour le développement, Paris, France, Muséum nationale d'histoire naturelle, Paris, France and Musée royale de l'Afrique centrale, Tervuren, Belgique. 800 p. (Ref. 80290)
人類使用
漁業: ; 水族館: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00528 - 0.02495), b=3.00 (2.82 - 3.18), 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).
