分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Erythrinidae (Trahiras)
虎脂鯉科 (Trahiras)
Etymology: Hoplias: Greek, hoplon = weapon (Ref. 45335); australis: The specific name 'australis', an adjective, is used in reference to the southern range of this species, one of the southern most in the genus.
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.
South America: Endemic to the rio Uruguai; Brazil, Argentina, Uruguay.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 44.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 81195)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 12 - 14; 臀鰭軟條: 9 - 11. Laterosensory canal along the ventral surface of dentary always with 5 pores; anterior profile of the head rounded in lateral view; and scales on the lateral line 40-45 (Ref. 81195).
Body shape (shape guide): elongated.
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oyakawa, O.T. and G.M.T. Mattox, 2009. Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species. Neotrop. Ichthyol. 7(2):117-140. (Ref. 81195)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 07 August 2020
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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=0.00676 (0.00310 - 0.01476), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
4.1 ±0.7 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Moderate vulnerability (42 of 100). 🛈 |