分類 / 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
生態學
; 淡水 底中水層性; 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 / 年齡
Maturity: Lm 2.5 range ? - ? cm
Max length : 3.8 cm SL 雄魚/尚未辨別雌雄; (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.
五均勻地，著色又水平的斑紋在身體，所有的延伸到尾鰭末端鰭條側邊上。 臀鰭特殊有斑紋。 側線不存在。 嘴的觸鬚延伸到眼窩的前緣; 上頜骨觸鬚於大約鰓蓋的中央結束。 分枝的臀鰭棘條 10-12. 脊椎骨 31-32.
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).
一個每年產卵一次的種。 成魚棲息於溪流，管，溝渠，池塘與 beels 。 (參考文獻 1479) 出現在對污濁的靜止水體的緩慢移動的, 特別地稻田;(參考文獻 4832) 而且溪流下游.(參考文獻 58912) 在山腳下常見於小河。 (參考文獻 41236) 捕食蠕蟲與小型甲殼動物;(參考文獻 7020) 也吃昆蟲幼生。 繁殖所有的全年度。 (參考文獻 58913) 產卵被溫度引誘而且開始在雨季的開始.(參考文獻 58913) 獲得食物也擔任開端繁殖。 (參考文獻 58913) 成長率對於性的區別是重要的引導環境的因素對於這個魚種如一個研究所觀察。 (參考文獻 58948) 在這個相同的研究, 頻率與食物的數量在與之前在 gonadal 區別各處時期造成.區別成為雌性，而且更明顯的更多的個體在雜交勝於純粹的被繁殖的群.(參考文獻 58948) 時常用來.控制蚊子 (參考文獻 6351) 。 對於水族館是受歡迎的企圖。 (參考文獻 44325) 對於發育生物學用作.一個模式系統 (=生物) 。 (參考文獻 47810) 水族館保持: 形成 5個或更多個體的群體; 水族館最小體型 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)
人類使用
漁業: 沒有興趣; 水族館: 高經濟性
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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).
營養階層 (Ref.
69278): 3.1 ±0.1 se; based on diet studies.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (tmax=5.5 (in captivity); tm<1; multiple spawning per year; Fec=400-500).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
