| General information |
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Serrasalmus spilopleura Kner, 1858 |
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| Common name | Speckled piranha, Piranha |
| Synonyms |
Pygocentrus dulcis Kner, 1860 |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Serrasalmidae. |
| Geographical distribution |
Brazil; Argentina; Venezuela; Uruguay; Guyana; Suriname; French Guiana |
| Occurrence |
native: Brazil; native: Argentina; questionable: Venezuela; questionable: Uruguay; questionable: Guyana; questionable: Suriname; questionable: French Guiana |
| Importance |
Food/ornamental |
| Remarks |
Piranha teeth are often used to make tools and weapons by the indigenous population |
| Karyological information |
| Record 1 |
| Geographical area of study |
Catalao and Camaleao lakes,Brazil |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
15 (04 male; 11 female) |
| Diploid chromosome number |
60 |
| Karyotype formula |
24M+20SM+4ST+12A |
| Fundamental arm number |
108 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| Chromosome staining/banding/FISH |
multiple NOR system located exclusively in ST and A chromosomes |
| Reference |
Nakayama CM, Porto JIR, Feldberg E (2002). A comparative cytogenetic study of five piranha species (Serrasalmus, Serrasalminae) from the Amazon basin. Genetica, 114: 231- 236. |
| Record 2 |
| Geographical area of study |
Central Amazon basin at the confluence of Solimoes and Negro rivers (Cataloo Lake); Manacapuru river, a tributary of Solimoes river; Amazon river near to Itacoatiara township, Brazil |
| Source of chromosomes |
Not reported |
| Number of specimens with sex |
62 (26 males; 34 females; 02 undetermined) |
| Diploid chromosome number |
60 |
| Karyotype formula |
24M+20SM+4ST+12A |
| Fundamental arm number |
108 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| Chromosome staining/banding/FISH |
C- bands were detected on all chromosomes; NORs were located on the short arms of 10 to 12 acrocentric chromosomes |
| Reference |
Fenocchio AS, Pastori MC, Roncati HA, Filho OM, Bertollo LAC (2003). A Cytogenetic Survey of the Fish Fauna from Argentina. Caryologia, 56(2): 197-204. |
| Record 3 |
| Geographical area of study |
Parana - Plata river basin, Argentina |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
Not reported |
| Diploid chromosome number |
60 |
| Karyotype formula |
18M+26SM+4ST+12A; 19M+26SM+4ST+11A |
| Fundamental arm number |
104, 105 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
|
| Reference |
Fenocchio AS, Pastori MC, Roncati HA, Filho OM, Bertollo LAC (2003). A Cytogenetic Survey of the Fish Fauna from Argentina. Caryologia, 56(2): 197-204. |
| Cross Link |