Actinopteri (ray-finned fishes) > Synbranchiformes
(Spiny eels) > Mastacembelidae
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335). More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 24°C - 28°C (Ref. 1672)
Asia: Thailand and Cambodia to Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL male/unsexed; (Ref. 1672)
Morphology | Morphometrics
Soft-rayed portions of median fins and pectoral fin with a sharply defined white distal margin, basal portion of dorsal, anal and caudal fins dark, that of pectoral fin dark or with broad vertical bars; head and anterior part of body with longitudinal red and black bands, rest of body with red spots or elongate marks on a black background (Ref. 39392).
A large lowland floodplain species occurring in slow moving rivers and inundated plains. Feeds on benthic insect larvae, worms and some plant material (Ref. 12693). Caught by dry pumping bodies of standing water. Marketed fresh and often seen in the aquarium trade. Has apparently become rare in recent years (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rainboth, W.J., 1996. Fishes of the Cambodian Mekong. FAO species identification field guide for fishery purposes. FAO, Rome, 265 p. (Ref. 12693)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00295 (0.00140 - 0.00624), b=2.92 (2.73 - 3.11), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.7 ±0.27 se; based on food items.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (55 of 100) .
Nutrients (Ref. 124155
): Calcium = 234 [97, 483] mg/100g ; Iron = 1.86 [0.91, 3.70] mg/100g ; Protein = 17.2 [15.5, 18.9] % ; Omega3 = 0.187 [0.089, 0.407] g/100g ; Selenium = 30.7 [10.0, 87.2] μg/100g ; VitaminA = 16.5 [6.2, 41.1] μg/100g ; Zinc = 1.15 [0.60, 2.54] mg/100g (wet weight);