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 | Iguacu river, Tibagi river. Ivai river, Ribeira river, Ponta Grossa and Castro, State of Parana; Pariquera-Acu, State of Sao Paulo, | |
| Source of chromosomes | Kidney |
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| Number of specimens with sex | 113 (63 males; 50 females) |
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| Diploid chromosome number | 42 |
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| Karyotype formula | 24m+18sm |
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| Fundamental arm number | 84 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not detected |
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| Chromosome staining/banding/FISH | Presence of C-positive heterochromatic segments in the centromeric/pericentromeric regions, Ag-NORs located at telomeric region of some chromosome pairs, FISH using 18S rDNA probe, confirmed the presence of major ribosomal sites in pairs number 10,16 and 21 in all populations. |
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| Reference(s) |
Affonso PRAM, Miranda VS, Medrado AS, Jacobina UP, Bitencourt JA, Almeida JS, Carneiro PLS (2007). Chromosomes in Focus: Basic Cytogenetics, Light Microscopy and the Case of Neotropical Fish. Modern Research and Educational Topics in Microscopy (Mendez-Vilas A and Diaz J, Eds) pp 370-377. |
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