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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/); kuehnei: Named for Jens Kühne, its collector.
Eponymy: Jens Kühne is a German aquarist and tour guide (Mahachai Tours, Thailand) who is also a trained chef. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Tầng nổi. Subtropical
Asia: Malaysia and Thailand.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.0 cm TL con đực/không giới tính; (Ref. 89702)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 1; Các vây lưng mềm (tổng cộng) : 8 - 9; Tia cứng vây hậu môn: 2; Tia mềm vây hậu môn: 23 - 24. This species differs from the other species of the Betta pugnax group by having the following combination of characters: rounded caudal-fin; no chin bar and second postorbital stripe; male coloration with intensive blue or bluish-green iridescent (blackish when preserved) area on head sides and on throat from snout tip to posterior edge of opercle; short second central stripe fused with the central stripe above anterior part of anal fin (Ref. 82661).
Facultative air-breathing (Ref. 126274); The species were collected in shallow water, among aquatic plants (Cryptocoryn cordata) and leaf litter. It is a shaded, forested creek with clear water, colorless (pH 7,0, hardness 3 dGH, temperature about 25°C). Other labyrinth fishes collected with Betta kuehnei were Trichopsis vittata and Parosphromenus paludicola. A mouthbrooding species and its reproductive behavior similar to that of other species of the Betta pugnax group where males carry the eggs (usually between 40 to 80) in their mouth for about 12 days. The eggs measure 1.0 to 1.4 mm in diameter with the offspring leaving the mouth at size approximately 7 mm. No particular color pattern was observed during spawning (Ref. 82661).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Schindler, I. and J. Schmidt, 2008. Betta kuehnei, a new species of fighting fish (Teleostei, Osphronemidae) from the Malay Peninsula. Bull. Fish Biol.10:39-46. (Ref. 82661)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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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 (0.00377 - 0.02651), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
