General information |
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| Brycon amazonicus (Spix & Agassiz, 1829) | ||
| Common name | Jatuarana | |
| Synonyms |
Chalceus amazonicus Spix & Agassiz, 1829 Chalceus carpophaga Valenciennes, 1850 Brycon carpophagus (Valenciennes, 1850) Brycon longiceps Steindachner, 1879 Brycon siebenthalae Eigenmann, 1912 Brycon pellegrini Holly, 1929 |
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| IUCN Red List status (2014) | Least Concern (LC) |
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| Habitat | Freshwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Bryconinae; Bryconidae. |
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| Geographical distribution | Brazil; Colombia; Venezuela; Guyana; Trinidad and Tobago |
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| Occurrence | Native: Brazil, Colombia, Venezuela, Guyana Misidentification: Trinidad and Tobago |
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| Importance | Food |
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| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Laguna de Castilleros, Caicara del Orinoco, Estado Bolivar, Venezuela | |
| Source of chromosomes | Not reported |
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| Number of specimens with sex | 10 (05 males; 05 females) |
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| Diploid chromosome number | 50 |
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| Karyotype formula | 22m+14sm+14st |
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| Fundamental arm number | 100 |
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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-banding revealed heterochromatin distribution in only seven chromosome pairs; AgNO3 staining revealed signals in the terminal region of long arms of the second pair of subtelocentric chromosomes;FISH with 18S rDNA probes confirmed fluorescent signals located in the terminal region of the long arms of pair 13 |
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| Reference(s) |
Mariguela TC, Nirchio M, Ron E, Gaviria JI, Foresti F, Oliveira C (2010).Cytogenetic characterization of Brycon amazonicus (Spixet Agassiz, 1829) (Teleostei: Characidae) from Caicara del Orinoco, Venezuela.Comparative Cytogenetics, 4(2):185-193. |
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