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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/).; dennisyongi: Named for Dennis Yong Ghong Chong, a distinguished and knowledgeable naturalist well experienced in many facets of tropical Southeast Asian fauna and flora with an avid interest in labyrinth fi shes. He has accompanied the author on many trips and shared many interesting stories, tips and gastronomic delights..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
Asia: Sumatra in Indonesia, from Meulaboh to lowland hill streams before Singkil.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 3.5 cm SL macho/indeterminado; (Ref. 93059)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 1; Raios dorsais (total) : 8; Espinhos anais: 2 - 3; Raios anais : 22 - 24; Vértebras: 29 - 30. Differs from Betta rubra bypossessing the following characters: a continuous black postorbital stripe extending up to opercle edge (vs. interrupted stripe); broad suborbital stripe below eye forming a triangular black mark (4-5 scale rows wide, vs. 2-3); body coloration less intense with wider interspaces between the black body bars; fewer anal-fin n rays (mode 25, vs. 27); greater number of subdorsal scales (6-7 vs. 5-5 ½); greater number of lateral scales (mode 31, vs. 30); greater number of vertebrae (mode 30, vs. 29); longer dorsal-fin base length (13.0-18.4, vs. 11.0-13.4% SL); and smaller maximum size (35.4 vs. 42.1 mm SL) (Ref. 93059).
Facultative air-breathing (Ref. 126274); Occurs in lowland hillstream and acid water swamp habitats. Found in clear to brown-water habitats, from secondary forest to plantation and farmland environments. Syntopic with Osteochilus jeruk, Rasbora jacobsoni, Rasbora kluetensis (Cyprinidae); Nemacheilus tuberigum (Nemacheilidae); Mystus punctifer (Bagridae); and Ompok brevirictus, Kryptopterus piperatus (Siluridae) (Ref. 93059).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Tan, H.H., 2013. The identity of Betta rubra (Teleostei: Osphronemidae) revisited, with the description of a new species from Sumatra, Indonesia. Raffles Bull. Zool. 61(1):323-330. (Ref. 93059)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00376 - 0.02663), b=2.97 (2.75 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
