分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Anabantiformes (Gouramies, snakeheads)
鱸形目 (Gouramies, snakeheads) >
Osphronemidae (Gouramies)
絲足鱸科 (Gouramies) > Macropodusinae
Etymology: Betta: Malay/Javanese origin. Bleeker (1850, 1858) indicates Ikan Wadder Bettah as the local name of Betta trifasciata Bleeker, 1849 (now Betta picta, Valenciennes, 1846) in the Ambarawa Javanese dialect. Ikan Wader is a common Javanese name for smaller freshwater fishes, especially cyprinids (already used in Old Javanese). See Blust, R. & Trussel, S. Austronesian Comparative Dictionary. Web Edition (https://www.trussel2.com/acd/)..
More on authors: Tan & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
Asia: central Sumatra, Indonesia.
亞洲: 蘇門答臘中部，印尼。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 38481)
背棘 (總數): 1 - 2; 背的軟條 (總數): 7-8; 臀棘 2; 臀鰭軟條: 19 - 21. This species is closely related to Betta picta from Java where it can be distinguished in the following characters: fewer dorsal fin rays (mode 8 vs. 9); fewer lateral scales (mode 27 vs. 28); dorsal fin origin above 11-12th lateral scale (vs. 12-14th); anal fin origin below modal 6th lateral scale (vs. 7th); fewer predorsal scales (mode 19 vs. 20); slightly greater anal-fin base length (46.5-50.3% SL vs. 42.6-48.4); anal and caudal fins with reddish distal band in live male (vs. bluish); iridescent greenish-blue opercle scales (vs. yellow-gold); in preserved specimens, male with distinct dorsal transverse bars (vs. faint); male with distinct dark anal distal margin wide (vs. narrow); male without elongated median caudal fin rays (vs. presence); female with distinct caudal transverse bars (vs. very faint or absent); dorsal head view narrow (vs. broad); thick preorbital black stripe (vs. narrow); and the distance between posterior part of anal fin to lower part of caudal narrow (vs. wide) (Ref. 56386).
這種是與來自爪哇的 爪哇搏魚〔Betta picta〕 親源相近在那裡它能在下列的特徵被區別: 較少的背鰭鰭條;(模態 8 vs.9) 比較少的側面鱗片;(模態 27 vs.28) 在 11-第 12個側部鱗片上面的背鰭起點;(vs.12- 第 14) 在型的第 6個側部鱗片之下的臀鰭起源;(vs. 第 7) 比較少的前背鱗片;(模態 19 vs.20) 些微比較大的臀鰭基底長度;(46.5-50.3% SL vs.42.6-48.4) 臀鰭與尾鰭在活的雄魚中有淡紅的色彩末梢部的條紋;(vs. 藍色的) 彩虹色的藍綠色的鰓蓋鱗片;(vs. 黃色的-黃金) 在保存的標本中, 雄魚有明顯的背部橫跨的橫帶;(vs. 模糊的) 廣闊地雄魚有明顯的深色肛門的末梢部的邊緣;(vs. 狹窄的) 雄魚沒有延長中央的尾鰭鰭條;(vs. 出現) 母魚有明顯的尾部橫跨的橫帶;(vs. 非常模糊的或不存在) 頭部背面看狹窄的;(vs. 寬的) 厚的眶前骨黑色斑紋;(vs. 狹窄的) 而且那對較下面的部位臀鰭的較後面的部分之間的距離尾部的狹窄 (vs. 寬的).(參考文獻 56386)
Facultative air-breathing (Ref. 126274); Typically found among submerged bank vegetation, in near stagnant waters, with pH 4.7-6.8. Latin word falx means scythe, alluding to the continuous curved shape of the broad anal and caudal distal margins of a male in display. Caudal fin rounded.
典型地發現於水下的河岸植被中了, 在污濁的水域，酸鹼值 4.7-6.8 的附近. 拉丁文的字 falx 方法以大鐮刀割, 暗示到在顯現中的一隻雄魚的寬肛門而尾部末梢部邊緣的連續彎曲形狀。 尾鰭圓的。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 蘇門答臘中部，印尼。
Tan, H.H. and M. Kottelat, 1998. Redescription of Betta picta (Teleostei: Osphronemidae) and description of B. falx sp. n. from central Sumatra. Rev. Suisse Zool. 105(3):557-568. (Ref. 38481)
人類使用
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參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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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=0.01000 (0.00376 - 0.02663), b=2.97 (2.75 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
