Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Anabantiformes (Gouramies, snakeheads) >
Osphronemidae (Gouramies) > Trichogastrinae
Eponymy: Lieutenant-Colonel J M van Leer was a Dutch army physician who was a colleague of Bleeker’s. He was for a time the Directing Surgeon at Samarang, East Sumatra. He provided the holotypes of these species. (Ref. 128868), visit book page.
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 24°C - 28°C (Ref. 1672)
Asia: Malay Peninsula, Thailand and Indonesia (Sumatra and Borneo).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 7050)
Obligate air-breathing (Ref. 126274); Occurs in swamps and streams, usually among dense vegetation (Ref. 56749). Found in lowland swamps with acidic water (Ref. 57235). An air-breathing species (Ref. 118402). Aquarium keeping: minimum aquarium size 120 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Male guards the bubble nest.
Roberts, T.R., 1989. The freshwater fishes of Western Borneo (Kalimantan Barat, Indonesia). Mem. Calif. Acad. Sci. 14:210 p. (Ref. 2091)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquaculture: commercial; aquarium: highly commercial
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00697 - 0.03603), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.8 ±0.1 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).