Nile Perch Invasion Triggered Genetic Bottlenecks in Lake Victoria's Endemic Cichlids The introduction of the Nile perch to Africa’s largest lake impacted the genomic structure of multiple local species

Newfound evidence reveals that the upsurge of the exotic Nile perch in Lake Victoria had long-lasting effects on the genetic diversity of various local cichlid species, report scientists from Tokyo Tech. Through large-scale comparative genomic analyses, the researchers found concrete proof in the collective genome of multiple species that this artificially introduced perch decimated many local fish populations, causing a 'bottleneck effect.'

Figure. The Nile perch is a...