Gambusia

Gambusia

Using conservative techniques like spraying of repellants, fogging, insecticides and other chemicals to curb the growth of mosquitoes not only contaminates the ecosystem, but also allows the mosquito to boost their resistance against such methods. Thus these procedures start failing day by day and the menace originating from the mosquitoes continues to grow.

Experts at the National Bureau of Fish Genetic Resources have said that the same hazard can be effectively dealt by using the mosquito fish or Gambusia which principally thrives on mosquito larvae. 

Gambusia is a small, natural brownish grey colored fish which can be easily maintained. They can survive in hard conditions and easily breed. They have an average life span of only 2 years. It is believed that if Gambusia is incorporated in our Malaria control schemes all over India then it can actually eradicate the disease completely.

But this predatory fish also has its disadvantages on the ecosystem. Gambusia by far has had the utmost biological impact when compared to any of the introduced Poeciliids. Although extensively introduced as the mosquito control agent, latest critical reviews on this measure to have control over mosquitoes is not all that effective nor is of much help to control the spread of mosquito born diseases. Gambusia’s have a very predatory and aggressive behavior that may harmfully affect populations of other small fish. Moreover because of predation it reduces the competition and assists the mosquitoes to get their food supplements from zooplankton and it also reduces predation pressure from other invertebrates. In some places where mosquitofish has been introduced, reportedly dislodge few inhabitant fish species which were regarded as more competent mosquito control agents.

 

 

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