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Teleostei >
Cypriniformes (Carps) >
Danionidae (Danios) > Rasborinae
Etymology: Rasbora: Rasbora, an Indian word for a fish, also used in Malay peninsula; septentrionalis: From the Latin septentrionalis (from northern areas).
More on author: Kottelat.
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. 熱帶
Asia: Mekong basin in Laos and Yunnan.
亞洲: 寮國與雲南的湄公河流域。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 5.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 43281)
Lateral line complete; 1 scale row between lateral line and pelvic-fin origin; 13-14 predorsal scales; dorsal-fin origin behind insertion of last pelvic-fin ray; distance between dorsal-fin origin and middle of caudal-fin base equal to distance between middle of eye and dorsal-fin origin; dark lateral stripe from upper extremity of gill-opening to caudal-fin base, more intense posteriorly, continued on caudal fin by a small black spot at base of median rays; dorsolateral stripe present, separated from dark lateral stripe by narrow light lateral stripe; 1.5-2 scales along dorsal midline between base of last dorsal-fin ray and vertical through anal-fin origin; caudal fin light yellow in life, with a very thin posterior dark margin (Ref. 36949).
Body shape (shape guide): elongated.
側線完整; 在側線與腹鰭起點之間的 1 鱗片列; 13-14個前背的鱗片; 在最後腹鰭鰭條的嵌入後面的背鰭起點; 背鰭起點之間的距離，而且尾鰭基底的中央等於眼與背鰭起點的中央之間的距離; 來自鰓裂到尾鰭基底的最上層的深色的側面斑紋, 更密集在後部地, 在中央鰭條的基底繼續一個小黑色的斑點尾鰭; 背外側的斑紋存在的, 與狹窄淡的側面斑紋的深色側面斑紋分開了; 1.5-2 鱗片沿著背鰭中線在最後背鰭鰭條的基底之間與垂直的透過臀鰭起源; 尾鰭淡黃色的活著時, 具有一個非常細的在後部的深色邊.(參考文獻 36949)
This is one of the northernmost ranging species of Rasbora (Ref. 36949). Reaches up to at least 5.7 mm SL (Ref. 43281).
這是最北方 Rasbora 的分佈種之一。 (參考文獻 36949) 達到至少 5.7 mm SL.(參考文獻 43281)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 寮國與雲南的湄公河流域。
Kottelat, M., 2000. Diagnosis of a new genus and 64 new species of fishes from Laos (Teleostei: Cyprinidae, Balitoridae, Bagridae, Syngnathidae, Chaudhuriidae and Tetraodontidae). J. South Asian Nat. Hist. 5(1):37-82. (Ref. 36949)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
人類使用
漁業: 潛在的興趣
工具
特別的報告
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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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00291 - 0.01722), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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