Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Osphronemidae (Gouramies) > Macropodusinae
Etymology: Betta: Siamese local name of the fish "ikan bettah". More on author: Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Asia: Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.5 cm SL male/unsexed; (Ref. 30224)
Short description
Morphology | Morphometrics
Dorsal
spines
(total): 1;
Dorsal
soft rays
(total): 8;
Anal
spines: 2;
Anal
soft rays: 24. Differs from B. enisae by: the absence of caudal transverse bars versus presence; more anal rays (25-27, mode 27, versus 23-26, mode 24-25); more subdorsal scales (5 1/2-7, mode 7, versus 5); more lateral scales (28-30, mode 30, versus 26-28, mode 27); smaller predorsal length (62.1-67% SL, versus 67.3-70.3); larger body depth at dorsal-fin origin (28.7-32.8% SL, versus 26.2-28.9); slightly longer pelvic fin (33.9-55.4% SL, versus 33.8-46.7); longer dorsal-fin base (11.4-14.9% SL, versus 8.7-12.1); smaller total length (12.8-15.1% SL, versus 14.3-15.5); smaller orbit diameter (48-69% of postorbital length, versus 57-68); smaller interorbital width (64-74% of postorbital length, versus 70-76) (Ref. 30224). Can be further differentiated from its congeners by: the absence of chin-bar (versus presence in B. pugnax, B. prima and B. pulchra); presence of dark distal borders on anal and caudal fins (versus absence in B. pugnax, B. fusca, B. schalleri, B. prima and B. pulchra; absence of caudal transverse bars (versus presence in B. pugnax and B. pulchra; more anal rays than B. fusca (25-27, versus 24-25); fewer lateral scales than B. schalleri (28-30, versus 31); more predorsal scales than B. schalleri (19-21, mode 21, versus 17-19, mode 19); more postdorsal scales than B. prima (11-12, versus 9-10); greater head length than B. fusca (51.3-54.3% predorsal length, versus 47.2-49.4); smaller predorsal length than B. fusca and B. prima (62.1-67% SL, versus 68.1-70.2); smaller postdorsal length than B. prima (21.9-23.4% SL, versus 24.1-26.3); smaller preanal length than B. prima (48-51.5% SL, versus 50.6-54.8); greater body depth than B. schalleri (28.7-32.8% SL, versus 26.7-27.6); longer pelvic fins than B pugnax (filamentous tip reaching 9-18th anal ray, versus 4-10th; 33.9-55.4% SL, versus 26.6-43.8); longer anal-fin base than B. fusca and B. schalleri (51.1-54.5% SL, versus 47.8-52); smaller orbit diameter than B. pugnax and B. pulchra (24.2-28.5% HL, versus 27.9-38.5); smaller interorbital width than B. pugnax and B. pulchra (29.6-36.1% HL, versus 32.4-53) (Ref. 30224).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tan, H.H. and M. Kottelat, 1998. Two new species of Betta (Teleostei: Osphronemidae) from the Kapuas Basin, Kalimantan Barat, Borneo. Raffles Bull. Zool. 46(1):41-51. (Ref. 30224)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref.
69278): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Low vulnerability (10 of 100) .