分類 / Names
Common names from other countries
主要參考資料
大小 / 重量 / 年齡
Max length : 105 cm TL 雄魚/尚未辨別雌雄; (Ref. 40637); common length : 18.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 35840); 最大體重: 50.0 kg (Ref. 30578)
Length at first maturity
Lm 51.7  range ? - ? cm
環境
; 淡水 底中水層性; 河川洄游 (Ref. 51243); 深度上下限 0 - 20 m (Ref. 6898)
氣候 / 範圍
6°C - 28°C (Ref. 37797), preferred ?; 64°N - 43°S
分布
Asia: Native to most major Pacific dainages of East Asia from Amur to Xi Jiang, China (Ref. 59043). China and Eastern Siberia. Introduced around the world for aquaculture and control of algal blooms. Several countries report adverse ecological impact after introduction (Ref. 1739). Often confused with Hypophthalmichthys nobilis (Ref. 59043).
國家 | FAO區域 | 生態系 | 發現紀錄 | 簡介
簡短描述
背棘 (總數): 1 - 3; 背的軟條 (總數): 6-7; 臀棘 1-3; 臀鰭軟條: 10 - 14. Body olivaceous to silvery. Barbels absent. Keels extend from isthmus to anus. Edge of last simple dorsal ray not serrated. Branched anal rays 12-13.5 (Ref. 13274). Differs from Hypophthalmichthys nobilis by having sharp scaleless keel from pectoral region to anal origin, 650-820 long, slender gill rakers, head length 24-29% SL, and plain pale coloration, greenish grey above, whitish below (Ref. 59043).
人類使用
漁業: 商業性; 養殖: 商業性
工具
特別的報告
下載 XML
網路資源
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
營養階層
2.0 ±0.00 se; Based on food items.
回復力
中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.16-0.29; tm=2-6)
瀕危性
High vulnerability (55 of 100)
價格種類