分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); acatlanensis: Named for its type locality, Río Acatlán in Puebla Mexico. An adjective.
Eponymy: Astyanax was the son of Hector in Greek mythology. See Homer’s Iliad for details. The reasoning for its use for a genus of characins is not explained. (Ref. 128868), visit book page.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性.
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Central America: Río Acatlán in Puebla and Río Jía in Oaxaca, Mexico.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 7.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 118583)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 10; 臀鰭軟條: 21 - 24; 脊椎骨: 32 - 33. Astyanax acatlanensis is distinguished from its congeners in inland central Mexico by the following characters: supracephalic profile, usually concave (vs. usually convex); modally 12 (modally 11-11.5) predorsal scales; modally 15.5 or fewer scales around caudal peduncle (vs. modally 16 or more); 10 or more procurrent unsegmented caudal fin rays on dorsum (9 or fewer
in A. rioverde); head short, mean 23.8% SL (mean 24.6% or higher in A. mexicanus, A. rioverde and A. salvatoris); sides of anterior fontanel, straight (convex, in A. rioverde); ascending vs. descending arms of premaxilla, subequal (vs. dentigerous longer); infraorbital IV, square with projections (rectangular in A. rioverde); and opercle dorsal edge, convex (obtuse in A. rioverde and A. salvatoris) (Ref.118583).
Body shape (shape guide): fusiform / normal.
生命週期和交配行為
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: Version 2025-2 (Global))
人類使用
工具
特別的報告
下載 XML
網路資源
基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.01047 (0.00461 - 0.02381), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
2.9 ±0.4 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (15 of 100). 🛈 |