分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Characidae (Characins; tetras)
脂鯉科 (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); joaovitori: Named for João Vitor Kadota Oliveira, son of the first author. A genitive..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
South America: Upper rio Araguaia and some tributaries in Mato Grosso State, Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 7.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 116165)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 10 - 11; 臀鰭軟條: 19; 脊椎骨: 33 - 34. Astyanax joaovitori is distinguished from its congeners belonging to the A. scabripinnis species complex by the following combination of characters: lateral dark stripe beginning immediately behind the upper margin of the opercle; presence of a single vertical humeral dark blotch; a scattered pattern of dark chromatophores below lateral line, at the abdominal region; anal fin with 15 to 20 branched rays; 33 to 36 perforated scales on lateral line; dentary teeth decreasing abruptly in size from the fourth or fifth tooth onwards; and 13 or 14 scales around caudal peduncle (Ref. 116165).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Oliveira, C.A.M., C.S. Pavanelli and V.A. Bertaco, 2017. A new species of Astyanax Baird & Girard (Characiformes: Characidae) from the upper rio Araguaia, Central Brazil. Zootaxa 4320(1):173-182. (Ref. 116165)
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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 (0.00526 - 0.02507), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.9 ±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).
