Volume No. 1 Issue No.: 3 Page No.: 241-246 January-March 2007

 

REPRODUCTIVE BIOLOGY OF MALARIA ERADICATING MOSQUITO FISH, Gambusia affinis WITH EMPHASIS ON THEIR PROPAGATION

 

Vishal Tiwari* and K.K.Gaur

Department of Zoology, R.B.S. College, Agra-282002 (India)

 

Received on : September 7, 2006

 

ABSTRACT

 

The present paper was aimed to study the reproductive biology of the most popular, exotic, larvicidal, livebearer, freshwater mosquito fish, G. affinis (Baird and Girard, 1853). The use of insecticides, such as D.D.T., chlorinated hydrocarbons as agents to control mosquitoes and other insects gained momentum, but their ill effects on human became apparent Larvicidal fishes are the natural enemy of mosquito eggs and larvae, and its biological control is now recognized as a potent-tool for checking mosquito population. Sex recognition, gonopodium as a secondary accessory dimorphic feature in male, courtship, pair formation, along with gravid spot, ovo-viviparity and superfaetation in female fish and prolific breeding habit, rapid sexual maturity, were promiscuous features which were observed as some of the most important aspects of findings.

 

Keywords : Pisces, Poeciliidae, Livebearers, Larvicidal, G. affinis, Reproductive biology, Propagation.

 

 

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