| General information |
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Channa punctata (Bloch, 1787) |
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| Common name | Spotted snakehead |
| Synonyms |
Ophicephalus indicus McClelland 1842 Ophicephalus karruwey Lacepede, 1801 Ophicephalus punctatus Bloch, 1793 Ophiocephalus affinis Gunther 1861 Ophiocephalus punctatus Bloch, 1793 Ophiocephalus indicus McClelland, 1842 Ophiocephalus karrouveri Lacepede, 1801 Ophiocephalus lata Hamilton 1822 |
| IUCN Red List status (2014) |
Least Concern (LC) |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata; Anabantomorpharia; Anabantiformes; Channidae. |
| Geographical distribution |
India; China; Bangladesh; Malaysia; Sri Lanka; Pakistan; Thailand; Myanmar; Nepal; Afghanistan |
| Occurrence |
native: India; native: China; native: Bangladesh; questionable: Malaysia; native: Sri Lanka; native: Pakistan; questionable: Thailand; native: Myanmar; native: Nepal; native: Afghanistan |
| Importance |
Food/ornamental/sports |
| Karyological information |
| Record 1 |
| Geographical area of study |
Guwahati, Silchar in Assam & Shillong in Meghalaya, India |
| Source of chromosomes |
Kidney and Testis |
| Number of specimens with sex |
51 |
| Diploid chromosome number |
34 |
| Karyotype formula |
16m+14sm+4A |
| Fundamental arm number |
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| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| Chromosome staining/banding/FISH |
Nil |
| Reference |
Dhar NJ, Chatterjee K (1986). A Distinctive Chromosomal Race of Channid Fish, Channa punctata. Microbios letters, 33: 15-18. |
| Karyotype /Metaphase complement image |
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| Record 2 |
| Geographical area of study |
Guwahati, Silchar in Assam & Shillong in Meghalaya, India |
| Source of chromosomes |
Kidney and Testis |
| Number of specimens with sex |
51 |
| Diploid chromosome number |
32 |
| Karyotype formula |
16m+16sm |
| Fundamental arm number |
|
| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| Chromosome staining/banding/FISH |
Nil |
| Reference |
Dhar NJ, Chatterjee K (1986). A Distinctive Chromosomal Race of Channid Fish, Channa punctata. Microbios letters, 33: 15-18. |
| Record 3 |
| Geographical area of study |
Imphal and nearby areas in Manipur, India. |
| Source of chromosomes |
Kidney tissue. |
| Number of specimens with sex |
5 |
| Diploid chromosome number |
32 |
| Karyotype formula |
18m+12sm+2st |
| Fundamental arm number |
62 |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
C-bands were found to be localized on 7 chromosome pairs (1 on pericentromeric region of metacentric chromosome and 6 on telomeric region). Six pairs of Ag-NORs observed with presence of a prominent one on the pericentric region of the q arm on the metacentric chromosome. CMA3 stained NORs observed on 6 chromosome pairs (5 located terminally on p arm of submetacentric chromosomes and 1 pericentromericelly on q arm of a metacentric chromosome). |
| Reference |
Kumar R, Kushwaha B, Nagpure NS, Behera BK, Lakra WS (2013). Karyological and molecular diversity in three freshwater species of the genus Channa (Teleostei, Perciformes) from India. Caryologia, 66(2): 109-119. |
| Record 4 |
| Geographical area of study |
Rayer Bazar fish market of Dhaka city, Bangladesh |
| Source of chromosomes |
Kidney and gills |
| Number of specimens with sex |
Not reported |
| Diploid chromosome number |
32 |
| Karyotype formula |
24m+2sm+6 t |
| Fundamental arm number |
Not reported |
| Chromosome length |
2.70–6.60 |
| Sex chromosome |
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| Chromosome staining/banding/FISH |
CMA-positive bands were observed on 7 chromosomes |
| Reference |
Ruma F, Ahmed ATA, Alam SS (2006). Karyotype Analysis of Channa punctata Bloch and Channa orientalis Schneider with Giemsa, CMA and DAPI. Cytologia, 71(4): 425–430.
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