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Datnioides polota (Hamilton, 1822)

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Datnioides polota
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Viet Nam country information

Common names: Cá huòng
Occurrence: native
Salinity: freshwater
Abundance: occasional (usually not seen) | Ref: Nguyen, H.P., P. Le Trong, N.T. Nguyen, P.D. Nguyen, N. Do Thi Nhu and V.L. Nguyen, 1995
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Saigon River (Ref. 10425) and Mekong delta (Ref. 36625). Also from the Gulf of Tonkin, central and southern Vietnam (Ref. 12846). Status of threat: Rare (Ref. 46452).
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: Nguyen, H.P., P. Le Trong, N.T. Nguyen, P.D. Nguyen, N. Do Thi Nhu and V.L. Nguyen, 1995
National Database:

Common names from other countries

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

Teleostei (teleosts) > Acanthuriformes (Surgeonfishes) > Lobotidae (Tripletails)
Etymology:   More on author: Hamilton.

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

Freshwater; brackish; benthopelagic.   Tropical; 22°C - 26°C (Ref. 13371); 22°N - 10°S

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

Asia and Oceania: India to Indonesia (Ref. 12693) and New Guinea (Ref. 2847).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL male/unsexed; (Ref. 4833); common length : 18.0 cm SL male/unsexed; (Ref. 2847)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 12; Dorsal soft rays (total): 13 - 14; Anal spines: 3; Anal soft rays: 8 - 9. Predorsal profile strongly concave; total gill rakers on first arch 20-23; scales large, about 40-60 in lateral series; anal fin branched rays 9; color pattern highly variable; up to 7 full vertical bars on body, sometimes with 1 to 4 partial bars between full bars (Ref. 10425).

Biology     Glossary (e.g. epibenthic)

Lives in brackish water at the mouths of large rivers and coastal lagoons, as well as in freshwater lakes and rivers above tidal influence (Ref. 10425). Feeds on fishes, prawns, crabs and some insect larvae. Marketed fresh (Ref. 12693).

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

Main reference Upload your references | References | Coordinator | Collaborators

Roberts, T.R. and M. Kottelat, 1994. The Indo-Pacific tigerperches, with a new species from the Mekong basin (Pisces: Coiidae). Ichthyol. Explor. Freshwat. 5(3):257-266. (Ref. 10425)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 09 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial
FAO(Publication : search) | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
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Length-weight rel.
Length-length rel.
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Swimming type
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Toxicities (LC50s)
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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=0.01585 (0.00918 - 0.02736), b=2.99 (2.83 - 3.15), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.60 se; based on food items.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100).
Price category (Ref. 80766):   Unknown.