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Teleostei (teleosts) > 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/).; uberis: From the Latin adjective 'uber', meaning abundant, alluding to the high number of dorsal-fin rays when compared to the other species..

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Kalimantan Tengah and Kalimantan Barat in Borneo, Indonesia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.6 cm SL male/unsexed; (Ref. 57022)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0 - 1; Dorsal soft rays (total): 13 - 17; Anal spines: 1 - 2; Anal soft rays: 22 - 26; Vertebrae: 27 - 28. Dorsal fin with 14-17 rays. Subdorsal scales 12-13 1/2. Dorsal-fin base 30.0-37.3% SL. Pelvic fin with wide distal tip. Male with or without green iridescent mid-lateral body patch when alive. Dorsal, caudal and anal fins with iridescent green streaks on interradial membrane when alive (Ref. 57022).

Facultative air-breathing (Ref. 126274); Inhabits peat swamp forests (Ref. 57022).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Tan, H.H. and P.K.L. Ng, 2006. Six new species of fighting fish (Teleostei: Osphronemidae: Betta) from Borneo. Ichthyol. Explor. Freshwat. 17(2):97-114. (Ref. 57022)

IUCN Red List Status (Ref. 130435)

Vulnerable (VU) (B1ab(iii,v)); Date assessed: 07 December 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Betta uberis Tan & Ng, 2006