General information |
||
| Plagioscion squamosissimus (Heckel, 1840) | ||
| Common name | South American silver croaker, Pescada branca | |
| Synonyms |
- |
|
| IUCN Red List status (2014) | Not Reported |
|
| Habitat | Freshwater |
|
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Perciformes; Sciaenidae. |
|
| Geographical distribution | Brazil; Argentina; Colombia; Peru; Venezuela; Ecuador; Guyana; Suriname; French Guiana |
|
| Occurrence | Native: Brazil, Argentina, Colombia, Peru, Venezuela, Ecuador, Guyana, Suriname, French Guiana |
|
| Importance | ||
| Remarks | - |
|
Karyological information |
||
| Geographical area of study | Tefé River, Catalão Lake, Pitinga River of Amazon basin, Brazil. | |
| Source of chromosomes | Anterior kidney cell. |
|
| Number of specimens with sex | 40 (24 male, 11 female, 5 unsexed) |
|
| Diploid chromosome number | 48 |
|
| Karyotype formula | 48a |
|
| Fundamental arm number | 48 |
|
| Chromosome length | - |
|
| Sex chromosome | - |
|
| Chromosome staining/banding/FISH | Single pair of different size Ag-NOR on 24th chromosome observed. C-banding located heterochromatin blocks exclusively in the pericentromeric region of all chromosomes, except NOR region, where a conspicuous heterochromatic block observed. |
|
| Reference(s) |
Feldberg E, Porto JIR, dos Santos EBP, Valentim FCS (1996). Cytogenetic studies of two freshwater Sciaenids of the genus Plagioscion (Perciformes, Sciaenidae) from the Central Amazon. Genet. Mol. Bio., 22(3): 351-356. |
|