4 According to the Kenya Marine Fisheries & Research Institute (KMFRI, Kisumu) the estimated catch of freshwater fish from the Kenyan part of Lake Victoria for 1990 was 190,125 tonnes, including Nile Perch (Lates niloticus) 107,801 tonnes (56.7% of total catch), Omena (R. argentea) 57,290 tonnes (39.6% of total catch), Tilapia species 4,095 tonnes (2.2% of total catch), and Others 2,939 tonnes