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The Guppy Poecilia reticulata गप्पी मासे For mosquito Control डासांचा शत्रू
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Like Gambusia, Guppy is also an exotic fish introduced in India in 1910. It is easy to care for, and it reproduces quickly and prolifically. It is now widely distributed in India and is an important larvivorous fish. Habitat It is a very hardy fish and survives in all types of water bodies. It tolerates high degree of pollution with organic matter. The temperature range suitable for breeding is from 24 0C to 34 0C. It can survive in water with pH ranging from 6.5 to 9.0 However, it can not survive in cold water (often below 10 0C) and stock may need replenishment if the temperature fall below 10 0C. Guppy movement, a campaign that aims to control malaria by using a rather peculiar but natural means of eliminating mosquitoes using guppies. The guppy (Poecilia reticulata), a freshwater fish popularly kept in aquariums, eats mosquito larvae and eggs and thus helps reduce the spread of malaria as the disease is caused by the parasite Plasmodium, which is transmitted to humans through mosquito bites. As a means to control mosquitoes, the guppies are left in stagnant water puddles where mosquitoes breed. The fish would then eat the mosquito eggs and larvae, leading to reduced mosquito population. Volunteers of the guppy movement visit schools and hospitals with jars of water that contain mosquito larvae and guppies to show people how the fish helps in mosquito and malaria control. They also conduct street plays to raise awareness about malaria. In Shillong in northeastern India, government officials organize malaria prevention workshops that teach participants how to breed Guppies. The state has already seen a 50 percent reduction in mosquito-borne diseases after it initiated the breeding of guppies for controlling malaria in 2012. Size and Longevity The male is 3 cm long, whereas the female is upto 6 cm in length. The Guppy lives for 4 + 1 years. Breeding Habitat The guppy takes about 90 days to mature. Each ovary contains 100 to 160 eggs. The female gives birth to young ones in broods of 5 to 7 at a time. About 50 to 200 young ones are • released by the female every four weeks. Breeding Season • Reported to breed throughout the year at about four weeks interval after maturity. However breeding season will depend on climatic conditions. In warmer climate it may breed from April to November. • LARVIVOROUS EFFICIENCY • The larvivorous efficiency of Poecilia is due to following characters: A single fish eats about 80 to 100 mosquito larvae in 24 hours. Therefore it is comparatively less efficient than Gambusia affinis. It is a surface feeder. Negotiates margins of ponds more easily. It is highly carnivorous and parents or older brood may eat up their own young ones. Therefore, a fair amount of weeds is required in the water so that young ones can hide and survive. Tolerates handling and transportation very well. Does not require specialized equipment for transportation. Survives and reproduces when introduced into new water bodies. Once well established, it can be found in the habitat even after many years. • With Thanks from http://nvbdcp.gov.in/Doc/Guidelines-l...
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