>
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/).
Eponymy: Professor Dr ‘Tom’ Lam Toong Jin (d: 1940), now Professor Emeritus, was head of the Department of Zoology, National University of Singapore where he spent his career (1969– present). [...] (Ref. 128868), visit book page.
More on authors: Ng & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical
Asia: known only from eastern Johor, Peninsular Malaysia, and previously from Singapore.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm SL mâle / non sexé; (Ref. 13093)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 8; Épines anales: 2; Rayons mous anaux: 27.
Facultative air-breathing (Ref. 126274); Inhabits well shaded shallow streams in very soft mud substrate with abundant leaf litter and detritus.
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Ng, P.K.L. and M. Kottelat, 1994. Revision of the Betta waseri species group (Teleostei: Belontiidae). Raffles Bull. Zool. 42(3):593-611. (Ref. 13093)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menacé (EN) (B1ab(iii)); Date assessed: 05 January 2019
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
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).
Niveau trophique (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).