Thailand country information

Common names: Daeng, Num ngern, Pla daeng
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref:
Aquaculture: experimental | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs throughout the Chao Phraya and its tributary (Pasak), and in the Tapi (Ref. 1632), Mekong River, Maeklong, Peninsular and Southeast Thailand river systems (Ref. 26336); also from Nonthaburi, Phra Nakhon Si Ayutthaya, Khon Kaen and Kanchanaburi (Ref. 37773). Is adaptable to pond conditions but growth rate is not at satisfactory levels. Eaten fresh and smoked (Ref. 6459).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/th.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Vidthayanon, C., J. Karnasuta and J. Nabhitabhata, 1997
National Database:

Common names from other countries

Pla nua on, Cá ket, Cá Kết, ... more

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

Teleostei (teleosts) > Siluriformes (Catfishes) > Siluridae (Sheatfishes)
Etymology: More on author: Günther.

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

Freshwater; demersal; potamodromous (Ref. 51243). Tropical

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

Asia: Cambodia and Thailand to Malaysia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm SL male/unsexed; (Ref. 30857)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal soft rays: 77 - 85. Maxillary barbels extending to eyes, mandibulary ones minute. Dorsal fin absent; pectoral fins much shorter than head, with a denticulated spine; pelvic fins small; anal fin long, its base 2.8-3.0 times HL (Ref. 4792). Head 4 2/3 times in SL; vomerine teeth in smoothly curved band; short maxillary barbel not extending beyond jaw; mandibular barbels shorter than eye width; caudal peduncle lacking dark blotch at its base (Ref. 12693). Body depth 5.1-5.9 times in SL (Ref. 43281).

Occurs in rivers, streams and lakes as well as in impoundments (Ref. 12693). A migratory species (Ref. 37772). Undertakes lateral migrations from the Mekong River into smaller tributaries and into the floodplains at the start of the flood season, returning back to the main river channel when the water begins to recede at the onset of the dry season (Ref. 37770). Migrations are triggered by the first rainfall at the end of the dry season, as well as water level changes. Lunar cycle affects also the movements. Returns to the river from the floodplain and tributaries on, or immediately before, the full moon (Ref. 37770). Feeds on small fishes, shrimps and aquatic insect larvae (Ref. 6459).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 130435)

Least Concern (LC) ; Date assessed: 04 April 2011

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquaculture: experimental

FAO(Publication : search) | FishSource |

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00437 (0.00262 - 0.00727), b=2.96 (2.81 - 3.11), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 4.5 ±0.80 se; based on food items.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (49 of 100).

Price category (Ref. 80766): Unknown.

Phalacronotus bleekeri (Günther, 1864)