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); tamiahua: Named for its type locality, Río Cucharas near Tamiahua in northern Veracruz, Mexico. A noun in apposition.
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: Tamiahua to Nautla in northern Veracruz, Mexico.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 6.3 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 - 11; 臀鰭軟條: 20 - 25; 脊椎骨: 31 - 33. Astyanax tamiahua is distinguished from other congeners in Veracruz and northern Mexico by the following characters: body deeper, mean 35.9% SL (vs. mean 33.9% SL in A. argentatus); head length, more than 26% SL (vs. 26% or less in A. acatlanensis, A. argentatus and A. rioverde); in lateral view, supraoccipital slightly concave (vs. angled in A. finitimus); infraorbital II, triangular with an angled base (vs. with a long convex base in A. argentatus and A. mexicanus); first dorsal pterygiophore, rostral edge angled (vs. curved in A. argentatus and A. mexicanus) (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))
易受傷害 (VU) (B1ab(i,iii)); Date assessed: 13 September 2018
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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]. |
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Bayesian length-weight
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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) |
3.0 ±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 (13 of 100). 🛈 |