| General information |
|
Gambusia affinis (Baird & Girard, 1853) |
|
| |
|
| Common name | Mosquitofish, Gambusia |
| Synonyms |
- |
| IUCN Red List status (2014) |
Least Concern (LC) |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Atherinomorpha; Cyprinodontiformes; Poeciliidae. |
| Geographical distribution |
India; China; Japan; Indonesia; Bangladesh; Malaysia; Sri Lanka; Pakistan; Philippines; Singapore; Thailand; Taiwan; Vietnam; Israel; Iraq; Egypt; Myanmar; Syria; Hong Kong; Laos; Cambodia; Nepal; Afghanistan; Kazakhstan; Uzbekistan; Turkey; Russia; Australia; New Zealand; Papua New Guinea; South Africa; Madagascar; Kenya; Morocco; Ghana; Sudan; Ivory Coast; France; Spain; Portugal; Italy; Greece; Bulgaria; Ukraine; Romania; Georgia; USA; Mexico; Canada; American Soma; Argentina; Peru; Chile; Hawaii; Puerto Rico; Fiji; French Polynesia; Guam; Kiribati; Marshall Islands; Micronesia; Samoa; Solomon Islands; Vanuatu; Albania; Hungary; Serbia; Central African Republic; Comoros; Mauritius; Mayotte; Zambia; Zimbabwe |
| Occurrence |
introduced: India; introduced: China; introduced: Japan; not established: Indonesia; introduced: Bangladesh; introduced: Malaysia; introduced: Sri Lanka; introduced: Pakistan; introduced: Philippines; introduced: Singapore; introduced: Thailand; introduced: Taiwan; introduced: Vietnam; introduced: Israel; introduced: Iraq; introduced: Egypt; introduced: Myanmar; introduced: Syria; introduced: Hong Kong; introduced: Laos; introduced: Cambodia; introduced: Nepal; introduced: Afghanistan; introduced: Kazakhstan; introduced: Uzbekistan; introduced: Turkey; introduced: Russia; introduced: Australia; introduced: New Zealand; introduced: Papua New Guinea; introduced: South Africa; introduced: Madagascar; introduced: Kenya; introduced: Morocco; introduced: Ghana; introduced: Sudan; introduced: Ivory Coast; introduced: France; introduced: Spain; introduced: Portugal; introduced: Italy; introduced: Greece; introduced: Bulgaria; introduced: Ukraine; introduced: Romania; introduced: Georgia; native: USA; native: Mexico; introduced: Canada; introduced: American Soma; introduced: Argentina; introduced: Peru; introduced: Chile; introduced: Hawaii; introduced: Puerto Rico; introduced: Fiji; introduced: French Polynesia; introduced: Guam; introduced: Kiribati; introduced: Marshall Islands; introduced: Micronesia; introduced: Samoa; introduced: Solomon Islands; introduced: Vanuatu; introduced: Albania; introduced: Hungary; introduced: Serbia; introduced: Central African Republic; introduced: Comoros; introduced: Mauritius; questionable: Mayotte; not established: Zambia; introduced: Zimbabwe |
| Remarks |
Metacentric chromosome 1 is largest in females. |
| Karyological information |
| Geographical area of study |
Ponds in Santa Barbara and San Diego, California, and College Station, Texas. |
| Source of chromosomes |
Gill epithelium, testes and spleen. |
| Number of specimens with sex |
48 mature and immature (15 male, 33 female). |
| Diploid chromosome number |
48 |
| Karyotype formula |
2sm+46t/a in male and 1m+2sm+45a in female. |
| Fundamental arm number |
- |
| Chromosome length |
0.30 to 1.09 micron. |
| Sex chromosome |
Female heterogamety of WZ (female) and ZZ (male) sex types. |
| Chromosome staining/banding/FISH |
- |
| Reference |
Chen TR, Ebeling AW (1968). Karyological evidence of female heterogamety in the Mosquitofish, Gambusia affinis. Copeia, 1968 (1): 70-75. |
| Cross Link |