Channa punctata, Spotted snakehead : fisheries, aquaculture, aquarium, bait

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Channa punctata (Bloch, 1793)

Spotted snakehead
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Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Anabantiformes (Gouramies, snakeheads) > Channidae (Snakeheads)
Etymology: Channa: Greek, channe, -es = an anchovy (Ref. 45335).
More on author: Bloch.

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

; zoet water; brak water benthopelagisch; potamodroom (Ref. 51243). Tropical; 22°C - 28°C (Ref. 2059)

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Asia: Afghanistan, Pakistan, India, Sri Lanka, Nepal, Bangladesh, Myanmar and Yunnan in China.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 31.0 cm TL mannelijk / geslacht onbekend; (Ref. 4833); common length : 15.0 cm TL mannelijk / geslacht onbekend; (Ref. 6028)

Biologie     Verklarende woordenlijst (bv. epibenthic)

Obligate air-breathing (Ref. 126274); Found in ponds, swamps, brackish water (Ref. 6028), ditches and beels (Ref. 1479). Adults prefer stagnant waters in muddy streams (Ref. 4833). Feed on worms, insects and small fish (Ref. 6028). Accept chopped fish and shrimp in the aquarium. Breed throughout the year. Mitochondrial hypertrophy, noted in the double cone of the retina of this species, is considered a basic process in oil droplet formation (Ref. 10557) believed to be an adaptation for enhanced visual contrast detection in turbid waters (Ref. 10407). Used as live bait for angling larger snakeheads.

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Spawning usually takes place at night in shallow water with a silty substrate. Eggs are laid in nests through elaborate tunnels in vegetated areas which look like vertical columns of water with the eggs floating in the center (Ref. 205). The male and female move towards the center of the nest during spawning where the male entwines his body to the female moving upward while releasing the eggs to be fertilised (Ref. 45309). Eggs are guarded by one or both parents. Hatching takes place in a day (Ref. 6028).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 11 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: commercieel; Aquacultuur: commercieel; Aquarium: Commercieel; aas: occasionally
FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00801 - 0.01307), b=2.98 (2.92 - 3.04), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.8   ±0.70 se; based on food items.
Generation time: 1.2 (0.9 - 2.4) years. Estimated as median ln(3)/K based on 11 growth studies.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.2; Fec=2,300).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (18 of 100).
Prijsklasse (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 144 [56, 374] mg/100g; Iron = 1.07 [0.71, 1.61] mg/100g; Protein = 17.5 [16.6, 18.4] %; Omega3 = 0.138 [0.069, 0.274] g/100g; Selenium = 29.4 [12.4, 70.3] μg/100g; VitaminA = 55.9 [26.3, 115.7] μg/100g; Zinc = 1.27 [0.86, 1.81] mg/100g (wet weight); based on nutrient studies.