General information |
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| Hoplerythrinus unitaeniatus (Spix & Agassiz, 1829) | ||
| Common name | Aimara, TraÃra pixuna | |
| Synonyms |
Erythrinus unitaeniatus Spix & Agassiz, 1829 Erythrinus salvus Agassiz, 1829 Erythrinus vittatus Valenciennes, 1847 Erythrinus balteatus Gunther, 1864 Pseuderythrinus rosapinnis Hoedeman, 1950 |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Saltwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Erythrinidae. |
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| Geographical distribution | Brazil; Argentina; Peru; Venezuela; Ecuador; Uruguay; Guyana; Suriname; French Guiana; Panama; Trinidad and Tobago |
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| Occurrence | Native: Brazil, Argentina, Peru, Venezuela, Ecuador, Uruguay, Guyana, Suriname, French Guiana, Panama, 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 | Mogi-Guaçú river (Guatapará, São Paulo state), Paraná river (Bataguassú, Mato Grosso do Sul state) and Prata river (tributary of Paracatu river, Minas Gerais state-São Francisco basin), Brazil. | |
| Source of chromosomes | - |
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| Number of specimens with sex | 45 (17 male, 28 female). |
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| Diploid chromosome number | 48 |
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| Karyotype formula | 44 m/sm+4st & 44m/sm+ 4st+4a. |
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| Fundamental arm number | 96 & 100. |
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| Chromosome length | - |
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| Sex chromosome | No chromosomal differentiation among sexes. |
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| Chromosome staining/banding/FISH | Multiple Ag-NORs, ranged from 2 to 6 chromosomes, observed on two m/sm and one st + one acrocentric pairs at interstitial region. Signals of 18S rDNA probe detected on 4-6 chromosomes. 5S rDNA sites located on pericentromeric regions of m/sm chromosomes with numerical variations ranged from 3-4 chromosomes. |
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| Reference(s) |
Diniz D, Bertollo LAC (2003). Karyotypic studies on Hoplerythrinus unitaeniatus (Pisces, Erythrinidae) populations. A biodiversity analysis. Caryologia, 56(3): 303-313. |
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