Two 10-metre cores were analysed and a 37,500 year pollen stratigraphy was established for Lake Malawi. A lowstand from 37,500 to 35,900 b p indicates extremely dry conditions. From 35,900 to 34,000 b p montane forests ...

This study interprets the recent history of Lake Kivu, a tropical lake in the East African Rift Valley. The current gross sedimentation was characterized from a moored sediment trap array deployed over 2 years. The ...

The abundance, biomass and composition ofplanktonic ciliates were studied in two Great Lakes o f Africa, Malawi and Victoria, between June, 1997, and June, 1999, to investigate their role in the food webs o f these lakes. ...

In order to understand accumulation and depuration of microcystins (MCYSTs) in Tilapia rendalli, three experiments with juveniles were done. The experiments simulated the fish diet during a Microcystis aeruginosa bloom ...

As fish caught from natural lakes and streams have traditionally been an important part of the diet in Malawi, increasing population and declining catches reduced annual per capita fish consumption from 14 kilograms in ...

Cichlid fish inhabit a diverse range of environments that vary in the spectral content of light available for vision. These differences should result in adaptive selective pressure on the genes involved in visual sensitivity, ...

Background: The exceptionally diverse species flocks of cichlid fishes in East Africa are prime examples of parallel adaptive radiations. About 80% of East Africa's more than l 800 endemic cichlid species, and all species ...

Cichlid fishes (Perciformes: Teleostei) found in the lakes of Africa have served as model systems for the study of evolution. The enormous number of species (1000 in Lake Malawi alone), the great diversity of trophic ...

Man has been associated with a variety of lakes throughout his evolutionary history in Africa. Lakeside dwellers have a close association with and understanding of these lakes. In the past four decades, however, overex ...