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Trichogaster lalius (Hamilton, 1822)

Dwarf gourami
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Anabantiformes (Gouramies, snakeheads) > Osphronemidae (Gouramies) > Trichogastrinae
Etymology: Trichogaster: Greek, thrix = hair + Greek, gaster = stomach (Ref. 45335).
More on author: Hamilton.

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

Freshwater; benthopelagic; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 25°C - 28°C (Ref. 2060)

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

Asia: Pakistan, India and Bangladesh. This is the smallest and most popular of the small gouramis which have been widely distributed outside its native range (Ref. 1739).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 9.5 cm TL male/unsexed; (Ref. 116964)

Biology     Glossary (e.g. epibenthic)

Facultative air-breathing (Ref. 126274); Inhabits slow moving streams, rivulets and lakes with plenty of vegetation (Ref. 41236). An air-breathing species (Ref. 118402). Aquarium keeping: minimum aquarium size 60 cm (Ref. 51539).

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

Male guards the floating bubble-nest where the eggs are laid, about 600 in number. Hatching takes place in 12 to 24 hours while the male parent continues to protect the nest. In about three days, the developing larvae become free-swimming and leave the nest. In an aquarium setting, it is about this same period that the male should be removed from the tank to lessen the probability of him eating the young (Ref. 1672).

Main reference Upload your references | References | Coordinator | Collaborators

Talwar, P.K. and A.G. Jhingran, 1991. Inland fishes of India and adjacent countries. Volume 2. A.A. Balkema, Rotterdam, i-xxii + 543-1158, 1 pl. (Ref. 4833)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 21 January 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: highly commercial; aquarium: highly commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Distribution
Countries
FAO areas
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Introductions
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Anatomy
Gill area
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Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
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Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
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Taxonomy
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References
References

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.01099 - 0.01902), b=2.98 (2.90 - 3.06), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  2.9   ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Fec=600 eggs (Ref. 1672)).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 349 [83, 1,070] mg/100g; Iron = 2.59 [0.94, 6.48] mg/100g; Protein = 16.1 [14.8, 17.3] %; Omega3 = 0.271 [0.093, 0.792] g/100g; Selenium = 30.5 [12.6, 70.8] μg/100g; VitaminA = 38 [14, 99] μg/100g; Zinc = 2.12 [1.37, 3.21] mg/100g (wet weight); based on nutrient studies.