Kenya Aquatica

KCSAP Project

Water hyacinth (Eichhornia crassipes) invasive aquatic macrophyte in Lake Victoria exhibits periodic cyclical patterns of disappearance and proliferation within the Nyanza Gulf with a myriad of negative impacts. The concerns about these impacts have necessitated continuous monitoring of their distribution and coverage as well as identification of the adverse impacts on the ecosystem and the implications on the sustainability of ecosystem services. Kenya Marine and Fisheries Research Institute (KMFRI) has been employing a combination of remote sensing and Geographical Information System (GIS) techniques for spatio-temporal mapping of water hyacinth in the lake. Assessment of the weevil (biological control) impact has been integrated with the periodic ground truthing activities. During the period 2018-2019, KMFRI undertook quarterly reporting on the monthly status of water hyacinth and other macrophytes in Lake Victoria to inform lake users. However, due to the effect of cloud cover in certain months of every quarter, the satellite imagery appeared blurred which led to redundancy in reporting of the coverage. During the period 2019-2020, KMFRI is undertaking bi-annual monitoring and mapping of water hyacinth and other floating macrophytes in Lake Victoria for improved lake surveillance to inform resource users. READ MORE