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).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
North America: USA and northern Mexico.
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 11.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 118583)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 10; 臀鰭軟條: 19 - 23; 脊椎骨: 32 - 33. This species is distinguished from other Astyanax species in central-northern Mexico by the following characters: A 19-23, mode 20 (21-25, mode 23, in A. mexicanus, 18-20, mode 18, in A. rioverde); modally 7 scale-rows between lateral line and dorsal-fin origin (modally 8 in A. mexicanus, A. acatlanensis); nuptial spines or tubercles, just on anal-fin rays, all simple (just on pelvic fins in A. rioverde, and at least some bifid in A. mexicanus, A. acatlanensis); body more slender than A. mexicanus, A. rioverde, mean 34% SL (vs mean 37% SL); anterior fontanel, sharp-tipped (blunt in A. mexicanus); infraorbital IV, rectangular, with no projections (square, with projections in A. acatlanensis, A. mexicanus, A. tehuacanensis); ventral side of ceratohyal, straight (vs undulate). Posterior edge of interopercle, without a spine (with a spine in A. mexicanus, A. tehuacanensis); postcleithrum caudad process concave-sided (straight in A. mexicanus); largest hypuric plate, rostral border straight (concave in A. mexicanus) (Ref. 118583).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Schmitter-Soto, J.J., 2017. A revision of Astyanax (Characiformes: Characidae) in Central and North America, with the description of nine new species. J. Nat. Hist. 51(23/24):1-94. (Ref. 118583)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 08 September 2018
人類使用
漁業: 沒有興趣
更多資訊
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年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
營養階層 (Ref.
69278): 2.8 ±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).