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A race against time: The giant weeds taking over Lake Osso in Cameroon

A race against time: The giant weeds taking over Lake Osso in Cameroon
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A race against time: The giant weeds taking over Lake Ossa in Cameroon

Lake Ossa, Cameroon
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Copyright
AMMCO
By
• Updated: 12/05/2021
- 16:41
Cameroon’s coastal waters have been invaded by three of the world’s most dangerous water weeds, proving an existential threat to aquatic ecosystems and livelihoods of riparian communities.
The latest of these weeds, Salvinia molesta, is
a free-floating, green-brown freshwater fern with branching horizontal stems. It has already invaded more than 40 per cent of
Lake Ossa (4,000 hectares), the largest natural lake found on Cameroon’s coast, since 2016.
The weed doubles in size every 10 days.
The other two, water lettuce and
water hyacinth, appeared much earlier - in 1949 and 1970 respectively, according to the Cameroon National Herbarium, a collection centre for plant specimens. ....

United States , Mount Isa , South Africa , Littoral Region , Lake Moondarra , Ejulie Coetzee , Ematthew Purcell , Dina Marie Louise , Kouoh Elinga Charles , Kenfack Voukeng Sonia , Kamla Takoukam , Us Department Of Agriculture , Aquatic Weed Biocontrol Programme At Rhodes University , Industrial Research Organisation , International Union For The Conservation Of Nature , Global Water Partnership , Agriculture Research Service , Louisiana State University , African Marine Mammal Conservation Organisation , Australian Biological Control Laboratory , Cameroon National Herbarium , National Park , Lake Ossa , River Fiko , Wouri River Basin , Kenfack Voukeng Sonia Nad ,