General information |
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| Hoplias malabaricus (Bloch, 1794) | ||
| Common name | Trahira, Haimara | |
| Synonyms |
Sphyrna diplana Springer, 1941 Esox malabaricus Bloch, 1794 Macrodon malabaricus (Bloch, 1794) Hoplias malabarica (Bloch, 1794) Synodus tareira Bloch & Schneider, 1801 Synodus palustris Bloch & Schneider, 1801 Erythrinus trahira Agassiz, 1829 Erythrinus macrodon Spix & Agassiz, 1829 Macrodon tareira Valenciennes, 1847 Macrodon ferox Gill, 1858 Astyanax bimaculatus incaicus Tortonese, 1942 |
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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; Characiformes; Characoidei; Erythrinidae. |
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| Geographical distribution | USA; Brazil; Argentina; Colombia; Peru; Venezuela; Ecuador; Uruguay; Guyana; Suriname; French Guiana; Costa Rica; Trinidad and Tobago |
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| Occurrence | Not established: USA Native: Brazil, Argentina, Colombia, Peru, Venezuela, Ecuador, Uruguay, Guyana, Suriname, French Guiana, Costa Rica, 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 | Pantano River, Sao Paulo State; Cuiaba river basin, Mato Grosso State; Doce River basin, Minas Gerais State, Brazil. | |
| Source of chromosomes | Anterior kidney. |
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| Number of specimens with sex | - |
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| Diploid chromosome number | 42 |
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| Karyotype formula | 22m+20sm |
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| Fundamental arm number | - |
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| Chromosome length | - |
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| Sex chromosome | No morphologically differentiated sex chromosomes observed. |
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| Chromosome staining/banding/FISH | All Ag-NORs coincide with 18S rDNA sites. C-positive heterochromatic bands observed in centromeric/pericentromeric region of all chromosomes, and in telomeric region of several pairs in karyotype. |
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| Reference(s) |
Cioffi MB, Martins C, Centofante L, Jacobina U, Bertollo LA. (2009). Chromosomal variability among allopatric populations of Erythrinidae fish Hoplias malabaricus: mapping of three classes of repetitive DNAs. Cytogenet Genome Res., 125(2): 132-41. |
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