Viet Nam country information

Common names: Cá Nhệch răng hạt
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Nguyen, H.P. and N.T. Nguyen, 1994
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in the Mekong delta (Ref. 12693). Known from the Gulf of Tonkin and southern Vietnam (Ref. 9706). Also Ref. 7050.
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. and N.T. Nguyen, 1994
National Database:

Common names from other countries

Serpenton des rizières, Tieso de los arrozales, Estuary snake eel, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Anguilliformes (Eels and morays) > Ophichthidae (Snake eels) > Ophichthinae
Etymology: Pisodonophis: Greek, piso, pipisko = to drink + Greek, odous = teeth + Greek, ophis = serpent .
More on author: Hamilton.

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

marina; sötvatten; brackvatten bottenlevande; anadrom (Ref. 51243); djupintervall 0 - 10 m (Ref. 86942). Tropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-West Pacific: Somalia (Ref. 30573) and Tanzania south to Knysna, South Africa (Ref. 3972), including the Seychelles (Ref. 7245); also southern India and Sri Lanka (Ref. 7245). Widespread elsewhere from the east Indian coast throughout Indonesia to Polynesia (Ref. 7245).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 100.0 cm TL hane/ej könsbestämd; (Ref. 3972); common length : 70.0 cm TL hane/ej könsbestämd; (Ref. 7245)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Taggstrålar i analfenan: 0; Ryggkotor: 171 - 180. Diagnosis: Body snake-like, cylindrical, compressed only along extreme tail tip; anterior nostril tubular, posterior along lower edge of lip; teeth granular to molariform, multiserial bands on jaws and vomer, but sharper on jaws and more pointed in young individuals; median fins not continuous posteriorly; extreme tip of tail stiff and finless; dorsal fin origin about a pectoral fin length behind tips of pectoral fins; lateral line inconspicuous (Ref. 4832).

Found in lagoons and estuaries, entering freshwater and paddy fields (Ref. 7245, 30573). Common in tidal reaches and nearby upstream areas of coastal rivers (Ref. 12693). Lives in holes in the river bottom and bank and actively forages for small fishes at night (Ref. 12693). Reported to spawn in rice-paddies during the rainy season (Ref. 12693). Caught in bag nets and similar gear. Marketed fresh.

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator : McCosker, John E. | Medarbetare

Castle, P.H.J., 1984. Ophichthidae. p. 38-39. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3508)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 12 October 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: mindre kommeriell; bete: usually

FAO(Aquaculture systems: produktion; ; publication : search) | FishSource |

Ytterligare information

Trophic ecology
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Estimates based on models

Preferred temperature (Ref. 115969): 24.6 - 29.2, mean 28.5 (based on 2626 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00093 (0.00047 - 0.00184), b=2.97 (2.80 - 3.14), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisk nivå (Ref. 69278): 4.0 ±0.71 se; based on food items.

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): High vulnerability (60 of 100).

Price category (Ref. 80766): Unknown.

Pisodonophis boro (Hamilton, 1822)