Cameroonian fishermen harvest invasive aquatic ferns to create an energy source.


Lake Ossa, the largest lake in Cameroon, Salvinia Morsta, Aquatic ferns native to Brazil, obstructing navigation, making fishing impossible and obstructing access to water. To combat the spreading vegetation, local aid groups are training fishermen to harvest fern and turn it into organic coal.

Florent Tsanga and other fishermen meet twice a week to get rid of what they can.

Since then Salvinia Morsta The life of Tsanga, which invaded Cameroon’s largest lake in 2016, deteriorated.

He said his kids wouldn’t go to school for Salvinia natan.. He said the kids went to school in the 80’s and 90’s when the lake was good. But lately he can’t afford it.

Lake Osa is a wildlife sanctuary with freshwater turtles, crocodiles, manatees and more than 18 species of fish.

Local aid groups train local fishermen, Salvinia natan For organic coal.

After collecting the fern, dry it and burn it. The resulting powder is mixed with other substances and passed through a mold to make household charcoal.

Since aquatic plants grow every 7 days, aid groups are also experimenting with biological solutions — especially feeding weevil. Salvinia natan.. The group released weevil at the lake pilot site.

They want insects to breed and feed Salvinia natan It makes leaves and produces larvae that attach to the growth of new plants.

“And birth is where new leaves emerge, and at that level you have the proteins that plants use to grow,” explains Aristide Kamura, founder of the African Marine Mammal Conservation Agency. bottom. “The larvae hijack these proteins and stop the growth of the plant. Therefore, the weevil not only stops the growth of the plant, but also destroys the biomass that already exists.”

The Cameroonian government has agreed to a pilot test of this biological solution, but has not downplayed other methods, said Sylvan Hector Evog, guardian of the Lake Ossa Wildlife Sanctuary.

“We want mechanical methods to be applied as well as biological control,” Evog said, adding that biological control may take longer. “Both methods can be applied. We are looking for funding.”

While Lake Ossa fishermen are willing to sell Salvinia natan Using charcoal to make money, they said they wanted to see a solution to clean the lake so they could resume fishing.

Cameroonian fishermen harvest invasive aquatic ferns to create an energy source

Source link Cameroonian fishermen harvest invasive aquatic ferns to create an energy source


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