分類 / Names
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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
生態学
; 新鮮な水 底生の漂泳性; pH range: 4.5 - 7.5; dH range: ? - 1; 深さの範囲 ? - 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.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL オス/雌雄の選別がない; (Ref. 81926)
背面の脊椎 (合計) : 0 - 1; 背鰭 (合計) : 8 - 9; 肛門の骨: 1 - 2; 臀鰭: 27 - 29; 脊つい: 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
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
水産業: 少数商業の; 水族館・水槽: 商業
用具
特記事項
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インターネットの情報源
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).
栄養段階 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
