Actinopteri (ray-finned fishes) > Callionymiformes
(Dragonets) > Callionymidae
Etymology: Callionymus: Greek, kallion, comparative of kallos = beautiful + Greek, onyma = name; with a better name . More on author: Day.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; demersal; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Indo-Pacific: Indian subcontinent to Viet Nam. Common in the Mekong delta and probably found in Cambodia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref. 12693)
soft rays: 9. Sandy yellow, ventrally lighter. First dorsal fin with a black blotch basally on third membrane. Second dorsal fin, caudal fin, pectoral and pelvic fins spotted with brown. Anal fin white. First dorsal fin lower than second dorsal fin. First spine of first dorsal fin shorter than second spine. Anal fin pale. Second dorsal fin without white bands (Ref 42832).
Occurs on the bottom in the lower courses of rivers. Feeds on worms, zooplankton and phytoplankton. Occasionally marketed fresh (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. 124695)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 23.9 - 28.6, mean 27.4 °C (based on 1025 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00408 - 0.02036), b=2.77 (2.59 - 2.95), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.8 ±0.28 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (11 of 100) .