| General information |
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Colossoma macropomum (G. Cuvier, 1818) |
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| Common name | Cachama |
| Synonyms |
Acanthorutilus crassus Ladiges, 1960 Phoxinellus crassus Ladiges, 1960 Pimelodus platanus Gunther, 1880 Megalonema platanus (Gunther, 1880) Oryzias minutilus Smith, 1945 Myletes macropomus Cuvier, 1816 Piaractus macropomus (Cuvier, 1816) Colosomma macropomum (Cuvier, 1816) Colossoma macropodum (Cuvier, 1816) Salmo tambaqui Kner, 1860 Myletes oculus Cope, 1878 Colossoma oculus (Cope, 1878) Myletes nigripinnis Cope, 1878 Colossoma nigripinne (Cope, 1878) Melloina tambaqui Amaral Campos, 1946 Colossoma tambaqui (Amaral Campos, 1946) Colossoma tombaqui (Amaral Campos, 1946) |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Serrasalmidae. |
| Geographical distribution |
China; Indonesia; Philippines; Thailand; Taiwan; Brazil; Colombia; Peru; Venezuela; Guyana; Hawaii; Panama; Cuba; Jamaica; Puerto Rico; Costa Rica; Dominican Republic; Honduras |
| Occurrence |
not established: China; not established: Indonesia; introduced: Philippines; introduced: Thailand; introduced: Taiwan; native: Brazil; introduced: Colombia; native: Peru; native: Venezuela; introduced: Guyana; introduced: Hawaii; introduced: Panama; introduced: Cuba; introduced: Jamaica; introduced: Puerto Rico; not established: Costa Rica; introduced: Dominican Republic; introduced: Honduras |
| Karyological information |
| Record 1 |
| Geographical area of study |
Central Amazon at Catalao Lake, Marchantaria island, Anavilhanas and Uatuma River in Brazil |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
Not reported |
| Diploid chromosome number |
54 |
| Karyotype formula |
26m+28sm |
| Fundamental arm number |
108 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
Multiple Ag-NORs/ 18S rDNA sites on short arms of st/a chromosomes; the 5SrDNA sites on a single chromosome pair. Conspicuous centromeric C- band on metacentric pair 7. |
| Reference |
Nakayama CM, Feldberg E, Bertollo LAC (2012). Karyotype differentiation and cytotaxonomic considerations in species of Serrasalmidae (Characiformes) from the Amazon basin. Neotropical Ichthyology, 10(1): 53-58. |
| Record 2 |
| Geographical area of study |
Venezuela. |
| Source of chromosomes |
Kidney tissue. |
| Number of specimens with sex |
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| Diploid chromosome number |
54 |
| Karyotype formula |
54m |
| Fundamental arm number |
108 |
| Chromosome length |
|
| Sex chromosome |
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| Chromosome staining/banding/FISH |
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| Reference |
Nirchio M, Rossi AR, Foresti F, Oliveira C (2014). Chromosome evolution in fishes: a new challenging proposal from Neotropical species. Neotropical Ichthyology, 12(4): 761-770. |
| Cross Link |