Viet Nam country information

Common names: Cá trê vàng
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in Mekong delta (Ref. 36625). Also Ref. 36654, 43281.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/vm.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Khoa, T.T. and T.T.T. Huong, 1993
National Database:

Common names from other countries

大头胡鲶, Storhovedet ålemalle, Pa douk, ... more

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

Teleostei (teleosts) > Siluriformes (Catfishes) > Clariidae (Airbreathing catfishes)
Etymology: Clarias: Greek, chlaros = lively, in reference to the ability of the fish to live for a long time out of water.
More on author: Günther.

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

Freshwater; brackish; benthopelagic; potamodromous (Ref. 51243); depth range 1 - ? m (Ref. 9987). Tropical; 34°N - 4°N

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

Asia: Thailand to Viet Nam. Introduced to China, Malaysia, Guam and the Philippines.

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 19 - ? cm
Max length : 120 cm TL male/unsexed; (Ref. 9987); max. published weight: 45.0 kg (Ref. 9987)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0. Distinguished from Southeast Asian congeners by an extremely short and rounded occipital process and by a very high dorsal fin. The combination of these characters are diagnostic for the species (Ref. 33566). Occipital process wide, broadly curved, with length 3-5 times in its width; distance between dorsal and occipital process 5-7 times in distance from tip of snout to end of occipital process (Ref. 43281).

Facultative air-breathing (Ref. 126274); Lives in lowland wetlands and rivers (Ref. 57235). Recorded as having been or being farmed in rice fields (Ref. 119549). Occurs in shallow, open water and is capable of lying buried in mud for lengthy period if ponds and lakes evaporate during dry seasons (Ref. 9987). Can move out of the water using its extended fins (Ref. 9987). Found in medium to large-sized rivers, stagnant water bodies including sluggish flowing canals and flooded fields of the Mekong (Ref. 12975). Spawns in small streams (Ref. 9987). Feeds on aquatic insects, young shrimps and small fishes (Ref. 6459). In Thailand, it was thought wrongly as female of Clarias batrachus (Ref 2686). Important foodfish and in pond cultures (Ref. 57235). Marketed live, fresh and frozen; consumed fried, broiled and baked (Ref. 9987). Cultivated on a small scale but attempts to farm it are increasing (Ref. 9987).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Eggs are attached to the roots of plants. Male takes charge of these eggs until they are hatched out.

Main reference Upload your references | References | Coordinator | Collaborators

Teugels, G.G., R.C. Diego, L. Pouyaud and M. Legendre, 1999. Redescription of Clarias macrocephalus (Siluriformes: Clariidae) from South-East Asia. Cybium 23(3):285-295. (Ref. 33566)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 17 January 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquaculture: commercial

FAO(Publication : search) | FishSource |

More information

Trophic ecology
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Ecology
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00832 (0.00434 - 0.01593), b=2.98 (2.82 - 3.14), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.7 ±0.58 se; based on food items.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Assuming tm=1; Fec=800-14,000).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (72 of 100).

Price category (Ref. 80766): Unknown.

Clarias macrocephalus Günther, 1864