| General information |
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Hoplias malabaricus (Bloch, 1794) |
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| 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 |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Erythrinidae. |
| Geographical distribution |
USA; Brazil; Argentina; Colombia; Peru; Venezuela; Ecuador; Uruguay; Guyana; Suriname; French Guiana; Costa Rica; Trinidad and Tobago |
| Occurrence |
not established: USA; native: Brazil; native: Argentina; native: Colombia; native: Peru; native: Venezuela; native: Ecuador; native: Uruguay; native: Guyana; native: Suriname; native: French Guiana; native: Costa Rica; native: Trinidad and Tobago |
| Importance |
Food |
| Karyological information |
| Record 1 |
| 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 |
| Number of specimens with sex |
113 (63 males; 50 females) |
| Diploid chromosome number |
42 |
| Karyotype formula |
24m+18sm |
| Fundamental arm number |
84 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| 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. |
| Reference |
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. |
| Record 2 |
| Geographical area of study |
Parana - Plata river basin, Argentina |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
Not reported |
| Diploid chromosome number |
40 |
| Karyotype formula |
40M-SM;40M-SM+2ST |
| Fundamental arm number |
80; 82 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
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| Reference |
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. |
| Record 3 |
| Geographical area of study |
Doce river; Juquia river, Brazil |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
20 (12 male; 08 females) |
| Diploid chromosome number |
42 |
| Karyotype formula |
Not reported |
| Fundamental arm number |
84 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
Not reported |
| Reference |
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. |
| Record 4 |
| Geographical area of study |
Contas river; Preto do Costa river; Bom-sem-farinha river, Brazil |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
36 |
| Diploid chromosome number |
40 |
| Karyotype formula |
40M-SM |
| Fundamental arm number |
80 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
Silver nitrate staining revealed variation, ranging from one to four chromosomes bearing telomeric NORs. |
| Reference |
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. |
| Cross Link |