General information |
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| Gymnotus carapo Linnaeus, 1758 | ||
| Common name | Banded knifefish | |
| Synonyms |
Gymnotus fasciatus Pallas, 1769 Gymnotum fasciatum Pallas, 1769 Gymnotus albus Pallas, 1769 Gymnotum album Pallas, 1769 Gymnotus brachiurus Bloch, 1786 Gymnotus putaol Lacepede, 1800 Carapus macrourus Cuvier, 1870 Sternopygus carapus Gunther, 1870 |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Freshwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Gymnotiformes; Gymnotoidei; Gymnotidae. |
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| Geographical distribution | Mexico; Brazil; Argentina; Peru; Venezuela; Ecuador; Uruguay; Suriname; French Guiana; Guatemala; Trinidad and Tobago |
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| Occurrence | Native: Mexico, Brazil, Argentina, Peru, Venezuela, Ecuador, Uruguay, Suriname, French Guiana, Guatemala, Trinidad and Tobago |
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| Importance | Food/Ornamental |
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| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Feijão and Pântano stream, São Carlos, São Paulo state, Brazil | |
| Source of chromosomes | Anterior kidney |
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| Number of specimens with sex | Twenty specimens (11 males and 9 females) |
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| Diploid chromosome number | 54 |
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| Karyotype formula | 44m+8sm+2st/a |
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| Fundamental arm number | 106 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| Chromosome staining/banding/FISH | C-bands on centromeric/pericentromeric region of all chromosomes. The NORs and 18S rDNA positive FISH sites were localized on short arm of the first pair of metacentric chromosomes. The 5S rDNA positive FISH sites were located in pericentromeric region of all chromosomes. |
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| Reference(s) |
Neto MF, de Oliveira C, Foresti F, Nogaroto V, de Almeida MC, Artoni RF, Vicari MR, Moreira-Filho O, (2010). Comparative cytogenetic study among three fish species: an analysis from a water divide region. Publication UEPG Ciencias Biologicas E Da Saúde, 16 (1): 19-28. |
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