分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); anai: Named for the Asociación Anai (www.anaicr.org), (Ref. 122421).
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. Asociación ANAI is is a Costa Rican non-profit association “dedicated to helping people put into practice community and landscape-level initiatives that integrate nature conservation and the well-being of the people who conserve and sustainably use [...] (Ref. 128868), visit book page.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性; 深さの範囲 1 - 100 m (Ref. 122421). Tropical
North America: Costa Rica to Panama.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 11.3 cm SL オス/雌雄の選別がない; (Ref. 122421)
This species is omnivorous, that feeds mainly on seeds, as well as terrestrial
and aquatic insects. Inhabits streams and ponds between 1 and 100 m asl, in waters ranging from stagnant to swift current at temperatures ranging from 21 to 32 °C. It is usually found in pools and backwaters, where it usually hides among roots, or in caves and undercuts (Ref. 122421).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Angulo, A., A.C. Santos, M. López, F. Langeani and C.D. McMahans, 2018. A new species of Astyanax (Characiformes: Characidae) from Costa Rica and Panama, with a key to the lower Central American species of the genus. J. Fish Biol. 92:1866-1887. (Ref. 122421)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (B1ab(iii,v)); Date assessed: 13 September 2019
人間の用途
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 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). |
栄養段階 (参照 69278) |
2.9 ±0.4 se; based on size and trophs of closest relatives |
回復力 (参照 120179) |
高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.). |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |