| General information |
|
Sciades herzbergii (Bloch, 1794) |
|
| |
|
| Common name | Pemecou sea catfish, Bagre-juba |
| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Ariidae |
| Geographical distribution |
Brazil; Colombia; Venezuela; Guyana; Suriname; French Guiana; Aruba; Curaçao Island; Trinidad and Tobago |
| Occurrence |
native: Brazil; native: Colombia; native: Venezuela; native: Guyana; native: Suriname; native: French Guiana; misidentification: Aruba; misidentification: Curaçao Island; misidentification: Trinidad and Tobago |
| Importance |
- |
| Remarks |
- |
| Karyological information |
| Record 1 |
| Geographical area of study |
Venezuela. |
| Source of chromosomes |
Kidney tissue. |
| Number of specimens with sex |
|
| Diploid chromosome number |
54 |
| Karyotype formula |
14m+20sm+18st+2a |
| Fundamental arm number |
106 |
| Chromosome length |
|
| Sex chromosome |
|
| Chromosome staining/banding/FISH |
|
| 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. |
| Record 2 |
| Geographical area of study |
Isla Margarita, Nova Esparta, Venezuela |
| Source of chromosomes |
- |
| Number of specimens with sex |
8 (unsexed) |
| Diploid chromosome number |
56 |
| Karyotype formula |
14m+20sm+18st+4t |
| Fundamental arm number |
- |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
Multiple Ag-NORs were found on short arms of two large-sized subtelocentric chromosome pairs. |
| Reference |
Nirchio M, Martinez ERM, Foresti F and Oliveira C. (2010). Cytogenetic analysis of three sea catfish species (Teleostei, Siluriformes, Ariidae) with the first report of Ag-NOR in this fish family. Genetics and Molecular Biology, 33(2): 262-265. |
| Cross Link |