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Anabantiformes (Gouramies, snakeheads) >
Osphronemidae (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/); pallifina: From the Latin pallidus (meaning pale) and finis (meaning boundary), referring to the unique coloration of the bordered anal and caudal fins of the females.
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
Asia: upper Barito in Kalimantan Tengah, Indonesia.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 6.6 cm SL オス/雌雄の選別がない; (Ref. 56613)
背面の脊椎 (合計) : 0 - 1; 背鰭 (合計) : 6 - 9; 肛門の骨: 1 - 2; 臀鰭: 26 - 31. Differs from the other members of the Betta unimaculata group by the following combination of characters: hyaline subdistal band on anal and caudal fins of female; lanceolate caudal fin in adults; body brownish; lower half of caudal fin with dark distal edge; vertebrae 31-33 (mode 32); anal-fin rays 27-32 (mode 30); dorsal-fin rays 7-9 (mode 8); pectoral fin rays 11-14 (mode 13); subdorsal scales 5 - 6 1/2 (mode 6): lateral scales 32-34 (mode 33); predorsal scales 21-26 (mode 23); predorsal length 64.6-69.4% SL; head length 26.8-33.4% SL; length of anal-fin base 47.4-57.7% SL; length of dorsal-fin base 9.3-12.5% SL; lower jaw length 30.6-39.6% HL (Ref. 56613).
Body shape (shape guide): fusiform / normal.
Facultative air-breathing (Ref. 126274); Found in headwater habitats (Ref 56613). Probably a paternal oral-brooder (Ref. 56613).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Tan, H.H. and P.K.L. Ng, 2005. The fighting fishes (Teleostei: Osphronemidae: Genus Betta) of Singapore, Malaysia and Brunei. Raffles Bull. Zool. Supplement (13):43-99. (Ref. 56613)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00374 - 0.02675), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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