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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/).

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

Freshwater; benthopelagic. Tropical

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Asia: Pulau Bintan, Riau Archipelago, Indonesia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.4 cm SL male/unsexed; (Ref. 12802)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 9 - 10; Anal spines: 2; Anal soft rays: 25 - 26. Distinguished from Betta burdigala in the following characters: body black in color (vs. red); no iridescent green spots on median fins (vs. presence); fewer dorsal fin rays (10-11 vs. 14-15); fewer subdorsal scales (8 vs. 11-11 1/2); more anal fin rays (27-28 vs. 24-26); more predorsal scales (18 vs. 15-16); smaller dorsal fin base length (16.0-24.6% SL vs. 26.8-28.6); smaller postdorsal length (12.3-13.3% SL vs. 16.7-17.4); greater predorsal length (56.2-65.4% SL vs. 52.8-54.9); and smaller preanal length (37.9-42.6% SL vs. 42.5-45.5). Can be differentiated from Betta coccina in the following characters: absence of lateral iridescent blotch (vs. presence); body black in color (vs. red); white pelvic fin tip (vs. black); absence of iridescent green spots on median fins (vs. presence); smaller postorbital length (12.3-13.3% SL vs. 14.3-15.5); and greater pelvic fin length (8.7-12.0% SL vs. 7.8-8.8) (Ref. 56386).

Facultative air-breathing (Ref. 126274); Occurs in shaded, acidic waters in a swamp forest, with leaf litter and soft mud substrate.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Tan, H.H. and S.H. Tan, 1994. Betta miniopinna, a new species of fighting fish from Pulau Bintan, Riau Archipelago, Indonesia (Teleostei: Belontiidae). Ichthyol. Explor. Freshwat. 5(1):41-44. (Ref. 12802)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Critically Endangered (CR) (B2ab(iii)); Date assessed: 28 December 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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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 (0.00377 - 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): 3.1 ±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).

Betta miniopinna Tan & Tan, 1994