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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Gambusia: Gambusia: From the Cuban term, Gambusino, which means "nothing", usually in the context of a joke or a farce. Fishing for gambusinos = when one catches nothing (Ref. 45335); affinis: From the Latin word affinusmeaning related (Ref. 79012).
; স্বাদু পানি; ঈষৎ লোনা সমুদতলে ভাসমান বেনথোপেলাজিক ; pH range: 6.0 - 8.0; dH range: 5 - 19; পোটামোড্রোমাস. Subtropical; 12°C - 29°C (Ref. 52055), preferred ?; 42°N - 26°N
North and Central America: Mississippi River basin from central Indiana and Illinois in USA south to Gulf of Mexico and Gulf Slope drainages west to Mexico. One of the species with the widest range of introductions which acquired for itself a near pan-global distribution (Ref. 1739). Several countries report adverse ecological impact after introduction.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.1 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 50932); 7.0 cm TL (female); common length : 3.9 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 12193); সর্বোচ্চ উলি্ল্লখিত বয়স : 3 বৎসর (Ref. 796)
পৃষ্ঠীয় কাঁটা (মোট ): 0; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ): 7-9; পায়ূ কাঁটা 0; পায়ূর নরম পাখনা্তুন্ড: 9 - 10. Origin of dorsal fin opposite 7th anal ray. Length of anal base much less than half distance from caudal. 8 horizontal scale rows between back and abdomen. Ventrals terminate immediately before anal fin. Pelvic fins reach ventrals.
Most abundant in lower reaches of streams (Ref. 44091). Adults inhabit standing to slow-flowing water; most common in vegetated ponds and lakes, backwaters and quiet pools of streams. Found frequently in brackish water (Ref. 5258). Pelagic and surface predatory fish (Ref. 94816). Feed on zooplankton, small insects and detritus (Ref. 5258, 10294). Used as live food for carnivorous aquarium fishes. Viviparous (Ref. 5258, 30578). Effective in mosquito control and widely introduced, but found to compete with indigenous fish and to upset the ecological balance (Ref. 6351).
The species is viviparous (Ref. 5258). Internal fertilization is possible because the anal fin of the male is modified into a copulatory organ. The females carries about 30 alevins and gestation lasts for a period of 24 days (Ref. 6348) to a month (Ref. 30578).
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Potential pest
Human uses
মৎস্য: গৌণ বাণিজ্যিক ; মৎস্যাধার / এ্যাকুয়ারিয়াম : বাণিজ্যিক
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