Viet Nam country information

Common names: Mekong delta dragonet
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality, An Giang Province, Song Hau Giang (=Bassac River), 4 km downstream from Long Xuyen, UMMZ 246104 (holotype of Tonlesapia amnica, 3.76 cm SL). Occurs in the Mekong River delta in southern Vietnam (Ref. 87929).
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: Ng, H.H. and W.J. Rainboth, 2011
National Database:

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Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Callionymiformes (Dragonets) > Callionymidae (Dragonets)
Etymology: Tonlesapia: Named for Lake Tonle Sap in Cambodia.; amnica: The specific name amnica is a feminine Latin adjective meaning pertaining to a river. The name is used in reference to the riverine habitat of this species..

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

; eau douce démersal. Tropical; 11°N - 10°N, 105°E - 106°E

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Asia: Vietnam.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 3.8 cm SL mâle / non sexé; (Ref. 87929)

Description synthétique Morphologie | Morphométrie

Tonlesapia amnica differs from its only congener, T. tsukawakii, in having the infraorbital canal extending beyond (vs. not reaching) ventral margin of orbit, a more slender body (7.2–13.5% SL vs. 14.3–15.0) and caudal peduncle (4.4–5.2% SL vs. 5.1–6.3), a smaller eye (6.5–8.3% SL vs. 8.7–9.2) and more dorsal-fin rays (9–10 vs. 8) (Ref. 87929).

The Song Hau Giang which is a branch of the Mekong River also known as the Bassac River is fairly clear, slow flowing (current about 0.2 ms-1) and wide (2 km) with a sand and silt bottom. This species has also been collected from brackish habitats and is the third species of Indo-Pacific callionymid known to inhabit freshwaters (the other species being Callionymus fluviatilis and T. tsukawakii) (Ref. 87929).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur : Fricke, Ronald | Collaborateurs

Ng, H.H. and W.J. Rainboth, 2011. Tonlesapia amnica, a new species of dragonet (Teleostei: Callionymidae) from the Mekong delta. Zootaxa 3052:62-68. (Ref. 87929)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 24 January 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01148 (0.00455 - 0.02896), b=2.92 (2.70 - 3.14), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Tonlesapia amnica Ng & Rainboth, 2011