B. P. Ngatunga

Ancient and ongoing hybridization in the Oreochromis cichlid fishes

This study examines ancient and contemporary hybridization in Oreochromis cichlids, revealing widespread ancient gene flow but limited adaptive radiation, and identifying modern hybridization threats to biodiversity and aquaculture.

Differential use of multiple genetic sex determination systems in divergent ecomorphs of an African crater lake cichlid

The paper identifies three coexisting sex-determining alleles in two ecomorphs of Astatotilapia calliptera, showing genetic interactions affecting fitness and speciation.

Newly discovered tilapia cichlid fish biodiversity threatened by hybridization with non-native species

The paper identifies hybridization threats to newly discovered tilapia populations and estimates their divergence time using genomic data.

Relative growth of invasive and indigenous tilapiine cichlid fishes in Tanzania

This study compares the relative growth rates of invasive Nile tilapia and indigenous Jipe tilapia in Tanzania, finding higher growth in the invasive species, which may indicate competitive advantage.

Ancestral hybridisation facilitated species diversification in the Lake Malawi cichlid fish adaptive radiation

This study shows ancestral hybridisation contributed to diversification in Lake Malawi cichlids by introducing genetic variation that was differentially selected during speciation.

A survey of fishes of Hombolo Lake, Dodoma, Tanzania, with evidence for local extinction of a native tilapia as a consequence of stocking

The paper surveys fish species in Hombolo Lake, Tanzania, and finds evidence that a native tilapia species has gone locally extinct due to competition or genetic swamping from introduced species.