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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/).
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный донно-пелагический; pH range: 4.5 - 7.5; dH range: ? - 1; пределы глубины ? - 1 m (Ref. 81926). Tropical; 27°C - 30°C (Ref. 2060)
Asia: lower Barito basin in South Kalimantan and Kotawaringin, Katingan, Sampit, Mentaya and Kahayan basins in Central Kalimantan, Indonesian Borneo.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL самец/пол неопределен; (Ref. 81926)
колючие лучи спинного плавника (общее число) : 0 - 1; членистые (мягкие) лучи спинного плавника (общее число) : 8 - 9; колючие лучи анального плавника: 1 - 2; членистые (мягкие) лучи анального плавника: 27 - 29; позвонки: 30 - 31. Can be distinguished from other species in possessing the following combination of characters: a thick-set body (body depth 30.5-33.7 % SL) with the anterior part of the body reminiscent of the taxon Anabas; head devoid of pattern except for a preorbital stripe that runs from the black lower lip to the eye, and continuous with a postorbital stripe to the posterior edge of the opercle; in living specimens, the opercle with faint gold iridescent scales; and some median caudal rays projecting beyond the fin margin (Ref. 81926).
Facultative air-breathing (Ref. 126274); Found in a murky stream, up to 1.2 m deep and pH 7.5. The stream water was sluggish and drained from cultivated area upstream (Ref. 81926). Seen only in local markets. Mouth brooder (Ref. 4537).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Male mouth brooder.
Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. Freshwater fishes of Western Indonesia and Sulawesi. Periplus Editions, Hong Kong. 221 p. (Ref. 7050)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-2)
Угроза для людей
Harmless
Использование человеком
рыболовство: не имеет хозяйственного значения; аквариум: коммерческий
дополнительная информация
инструменты
Специальные отчеты
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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).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
