分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); irregularis: From the Latin irregularis (not regular).
More on author: Kottelat.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 底中水層性. 熱帶
Asia: Nam Khan of the Mekong basin in Laos.
亞洲: 在寮國的湄公河流域的 Nam Khan。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 8.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 43281)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Anterior nostril pierced on front side of a flap; processus dentiformis present; no median notch in upper lip, lower lip with median incision; lower jaw with median notch; low dorsal keel along caudal peduncle; body depth 17.4-18.8 %SL; caudal peduncle length 16.8-18.1 %SL, depth 12.5-15.0 %SL, 1.20-1.38 times in length; lateral line complete; anus about 1-2 eye diameters in front of anal-fin origin; 8.5 branched dorsal-fin rays; 5.5 branched anal-fin rays; caudal fin emarginate, with 9+8 branched rays; axillary pelvic lobe present; body with 7-9 bars wider than interspaces, very irregularly shaped and set, anterior bars wider than posterior bars, not always distinct; posterior bars with dark edges and pale center; black bar at caudal-fin base incomplete, not reaching dorsal and ventral midlines, restricted to a narrow, short bar at end of lateral line, curved forwards at upper extremity; dorsal-fin base with small anterior black spot followed by an orange patch and a very low elongate grey blotch (Ref. 36949).
Body shape (shape guide): elongated.
前鼻孔在鰓蓋的在前面側邊上刺穿了; 活動 dentiformis 呈現; 在上嘴唇中的沒有中央的凹槽, 用中央的切口下唇; 下頜有中央的凹槽; 低的背部龍骨脊沿著尾柄; 體高 17.4-18.8% SL; 尾柄長度 16.8-18.1% SL ，深度 12.5-15.0% SL,1.20-1.38 倍長; 側線完整; 關於臀鰭前面起源的 1-2 眼直徑的肛門; 8.5 分枝的背鰭鰭條; 5.5 分枝的臀鰭棘條; 尾鰭邊緣微凹的, 藉由 9+8個分支條; 腋窩的腹鰭葉呈現; 身體有 7-9條橫帶比間隙寬,非常形狀不規則而固定又前面的橫帶比在後部的橫帶寬, 不常明顯的; 在後部的橫帶有深色的邊緣與灰白的中心; 在尾鰭基底的黑色橫帶不完全的不被達到背部而腹的中線, 在最上層被向前彎曲的側線的末端侷限於一條狹窄又短的橫帶; 背鰭基底有小的被跟隨著一個橘色的小區塊與一個非常低的細長灰色的斑塊的前面的黑色斑點。 (參考文獻 36949)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 在寮國的湄公河流域的 Nam Khan。
Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref. 43281)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00310 - 0.01545), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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