Devario malabaricus (Jerdon, 1849)
Malabar danio
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Devario malabaricus
画像によって Ramani Shirantha
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画像によって Ramani Shirantha
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> Cypriniformes (Carps) > Danionidae (Danios) > Danioninae
Etymology: Devario: Bangla/Bengali:‘debari’, local name for these fishes; also meaning ‘brother in law’ (Ref. 2031).
More on author: Jerdon.
Etymology: Devario: Bangla/Bengali:‘debari’, local name for these fishes; also meaning ‘brother in law’ (Ref. 2031).
More on author: Jerdon.
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. Tropical; 18°C - 25°C; 22°N - 6°N, 72°E - 81°E
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Asia: west coast of India and Sri Lanka. Has been widely transported around the world through the aquarium fish trade industry.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 12.0 cm TL オス/雌雄の選別がない; (Ref. 41236); common length : 8.0 cm TL オス/雌雄の選別がない; (Ref. 6028)
Max length : 12.0 cm TL オス/雌雄の選別がない; (Ref. 41236); common length : 8.0 cm TL オス/雌雄の選別がない; (Ref. 6028)
簡単な記述 検索表 | 形態学 | 形態計測学
背鰭 (合計) : 12 - 16; 臀鰭: 15 - 20; 脊つい: 34 - 36. Devario malabaricus differs from all its congeners by the combination of the following characters: absence of process on 1st infraorbital; body depth 27-35 %SL; predorsal scales15-17; dorsal fin with 11½-12½ branched rays; anal fin with 12½-17½ branched rays; presence of danionin notch; origin of dorsal fin to hypural distance when carried forward falling well short of posterior border of eye; tip of pectoral fin almost reaching origin of pelvic fin when adpressed; snout length subequal to or greater than eye diameter; P stripe originating level with pelvic-fin origin, 1-2 scale-widths anterior to dorsal-fin origin; P-1 stripe less than half width of P stripe, bifurcated anteriorly by a more or less broken whitish line; 5-6 dark, irregular, vertical bars on the anterior half of body; and absence of nuptial tubercles in both sexes (ref. 118056).
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Found in a variety of habitats from boulder-strewn mountain torrents to small pools in dry zone streams. Most common in flowing water than in reservoirs and tanks. Adults form medium sized shoals and prefer flowing water. They feed on terrestrial insects and detritus. They spawn in shallow water, among marginal weeds and roots usually after heavy rains. Eggs are light orange and sticky; more than 200 eggs are laid and hatch in 1-2 days. Fry are free-swimming on fifth day. They exhibit cannibalism on eggs (Ref. 6028). Individuals rarely reach 12 cm (Ref. 41236). Migratory behaviour is undetermined (Ref. 126106).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Spawns in shallow water, among marginal weeds and roots usually after heavy rains. Eggs are light orange and sticky; more than 200 eggs are laid and hatch in 1-2 days. Fry are free-swimming on fifth day. Exhibits cannibalism on eggs (Ref. 6028).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
Kullander, F.F., 2001. Phylogeny and species diversity of the South and Southeast Asian cyprinid genus Danio Hamilton (Teleostei, Cyprinidae). Ph.D. Thesis-Stockholm University, Department of Zoology. p. 1-26. Sweden, Stockholm University. Department of Zoology. (Ref. 38392)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 興味がない; 水族館・水槽: 高い商業の
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インターネットの情報源
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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].
Bayesian length-weight: a=0.00977 (0.00422 - 0.02262), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (参照 69278): 3.2 ±0.2 se; based on diet studies.
回復力 (参照 120179): 高い, １５か月以下の倍増期間の最小個体群 (tm<1; assuming multiple spawing events per year; Fec=200).