Guppies can destroy the natural ecological environment

Guppies have long been used as an effective weapon against larvae to prevent diseases from mosquitoes. However, this is also a species with a very fast growth rate, leading to many other environmental problems.

We now face many dangerous diseases transmitted through mosquitoes, such as Zika virus and dengue fever. In the face of these threats, health authorities are promoting the use of measures to prevent and kill mosquito larvae, including measures to raise guppies and some other fish. However, when the guppies were released, ecologists warned about the risk of destroying the area's natural ecological environment.

Rana El-Sabaawi, an ecologist at Victoria University, Canada, authored the guppy article on Biology Letter, saying: "It all sounds great when the guppies will eat the bugs. However, people do not know what the guppies will be when they are released into the environment. "

Guppies come from the Americas.

Guppies originating from the Caribbean and South America , have now appeared in 69 countries. It serves as the simplest option to destroy larvae (larvae) to limit the proliferation of mosquitoes thanks to its extremely high survival ability and equally impressive fertility.

Many studies show that guppies are a real threat to biodiversity. Research groups in Hawaii found that the changing environment and native fish ecosystems changed dramatically when a large number of guppies were released into the environment in the 1920s. Indigenous fish species, the cycle of nutrients in the water also varies a lot. The area where many guppies live indicates high levels of soluble nitrogen, algae grow faster than other areas due to excretion of guppies.

Guppies are used as the enemy of larvae - larvae.

The team also questioned the ability of mosquitoes to stop breeding. Experiments are often carried out in a laboratory with many natural characteristics of the environment that are incorrectly simulated.

However, according to John Hustedt, specialist of the Malaria Consortium organization in Phnom Penh, the unit implemented a mosquito prevention campaign for the suburbs with a method of raising guppies in water jars and jars, claiming that covering Getting the effect of guppies is quite subjective.

According to the results of the program that John did, the number of mosquitoes was reduced by more than half compared to those who did not have guppies. John hopes the research will clarify the benefits and harms of guppies so that they can find a way to use them most effectively.

For ecological risks, the guppies raised separately in the tanks will be easier to control than the widespread release into the environment. However, because the appearance of guppies is quite common, it is now almost a native fish and can be found very easily in nature.

Due to indiscriminate release, the guppies are now very popular in nature.

Although the benefits and risks of using guppies and other exotic fish to kill mosquitoes still need further investigation. However, scientists propose to limit the use of this method and prioritize more effective measures such as cleaning ponds, standing water, spraying regularly, using genetically modified mosquitoes. For the safety of ecosystems, alien organisms need to be minimized.