Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Tetraodontiformes
(Puffers and filefishes) > Tetraodontidae
(Puffers) > Tetraodontinae
Etymology: Pao: Origin of Pao is from the local name of pufferfishes in Thai and Lao languages, pla pao and pa pao, respectively, with pla and pa meaning fish, and pao meaning purse.. More on author: Roberts.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Meklong, Chao Phraya and Mekong basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.3 cm SL male/unsexed; (Ref. 27661)
Morphology | Morphometrics
Distinguished from T. leiurus and from all other Tetraodon by its color: entire dorsolateral surface of body with numerous pale spots uniformly distributed over a dark background. In live specimens observed from the Meklong and Chao Phraya basins, the spots are orange and the background brown or blackish brown. In some freshly preserved specimens from the Mekong basin (Xe Bang Fai) the spots were faintly orange. All adults have numerous spots. In preserved specimens the spots are pale (Ref. 27661).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Roberts, T.R., 1998. Freshwater fugu or pufferfishes of the genus Tetraodon from the Mekong basin, with descriptions of two new species. Ichthyol. Res. 45(3):225-234. (Ref. 27661)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02455 (0.01114 - 0.05408), b=2.90 (2.72 - 3.08), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.2 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.).
Vulnerability (Ref. 59153
): Low vulnerability (11 of 100) .