分类 / Names
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Teleostei >
Cypriniformes (Carps) >
Danionidae (Danios) > Danioninae
Etymology: Danio: From ‘dhani’, local Bengali/Bangla name for small minnows (Ref. 2031).
More on author: Hamilton.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 6.0 - 8.0; dH range: 5 - 19. 熱帶; 18°C - 24°C (Ref. 1672); 33°N - 8°N, 66°E - 98°E
Asia: Pakistan, India, Bangladesh, Nepal and Myanmar (Ref. 41236). Reported from Bhutan (Ref. 40882). Appearance in Colombian waters presumably by escape from an aquarium fish rearing facility (Ref. 1739).
亞洲: 巴基斯坦，印度，孟加拉，尼泊爾與緬甸.(參考文獻 41236) 記錄來自不丹了。 (參考文獻 40882) 出現在哥倫比亞水域可能是從一個水族設備脫逃.(參考文獻 1739)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 2.5 range ? - ? cm
Max length : 3.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 41236)
脊椎骨: 31 - 32. Five uniformly, pigmented, horizontal stripes on the side of the body, all extending onto the end of caudal fin rays. Anal fin distinctively striped. Lateral line absent. Rostral barbels extend to anterior margin of orbit; maxillary barbels end at about middle of opercle. Branched anal fin rays 10-12. Vertebrae 31-32.
五均匀地，着色又水平的斑纹在身体侧边上; 全部延伸到尾鳍末端鳍条。 臀鳍有斑纹的。 侧线不存在。 嘴的触须延伸到眼窝的前缘; 上颌骨触须于大约鳃盖的中央结束。 分枝的臀鳍棘条 10-12.
Adults inhabit streams, canals, ditches, ponds and beels (Ref. 1479). Occur in slow-moving to stagnant standing water bodies, particularly rice-fields (Ref. 4832); and lower reaches of streams (Ref. 58912). Common in rivulets at foot hills (Ref. 41236). Feed on worms and small crustaceans (Ref. 7020); also on insect larvae. Breed all year round (Ref. 58913). Appears to be primarily an annual species in the wild, the spawning season starting just before the onset of the monsoon (Ref. 72224). Domesticated zebrafish live on average 3.5 years, with oldest individuals surviving up to 5.5 years (Ref. 58923). Spawning is induced by temperature and commences at the onset of the monsoon season (Ref. 58913). Food availability also acts as cue for breeding (Ref. 58913). Growth rate is a vital guiding environmental factor for sexual differentiation for this species as observed in a study (Ref. 58948). In this same study, frequency and amount of food prior to and throughout gonadal differentiation period resulted in more individuals differentiating to become females and is more pronounced in hybrid than pure bred groups (Ref. 58948). Often used for mosquito control (Ref 6351). Popular for aquarium purposes (Ref. 44325). Used as a model system (=organism) for developmental biology (Ref. 47810). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).
栖息于溪流，管，沟渠，池塘与 beels 。 (参考文献 1479) 出现于对污浊的静止水体的缓慢移动的, 特别地稻田.(参考文献 4832) 在山脚下常见于小河。 (参考文献 41236) 吃蠕虫与小型甲壳动物;(参考文献 7020) 也吃昆虫幼生它能被用来控制蚊子 (参考文献 6351) 。 对于水族馆是受欢迎的企图。 (参考文献 44325) 对于发育生物学用作了一个模式系统 (=生物) 。 (参考文献 47810) 水族馆保持: 形成 5个或更多个体的群体; 水族馆最小体型 60 公分.(參考文獻 51539)
Breed all year round (Ref. 58931). From Johnson (1932), 'a female never extrudes eggs during active courtship until the genital organ comes in contact with that of the male, whereupon a small stream of eggs is ejected' (Ref. 205). Violent dashing and chasing characterise courtship finally culminating in eggs being shed a few at a time, settling freely without adhering to the bottom surface (Ref. 205).亞洲: 巴基斯坦，印度，孟加拉，尼泊爾與緬甸.(參考文獻 41236) 記錄來自不丹了。 (參考文獻 40882) 出現在哥倫比亞水域可能是從一個水族設備脫逃.(參考文獻 1739)
Talwar, P.K. and A.G. Jhingran, 1991. Inland fishes of India and adjacent countries. vol 1. A.A. Balkema, Rotterdam. i-liv + 1-541, 1 map (Ref. 4832)
人类利用
渔业: 没有兴趣; 水族馆: 高经济性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00371 - 0.02139), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.1 ±0.1 se; based on diet studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (tmax=5.5 (in captivity); tm<1; multiple spawning per year; Fec=400-500).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
