A study carried by Algarve researchers has found that fishing affects the genetic differentiation of fish. The study conducted at the Centre for Algarve Marine Sciences (CCMAR), at the University of Algarve, revealed that marine fish species exploited by commercial fishing “tend to have less genetic differentiation between their populations, which may influence their adaptation to environmental changes”. The researchers analysed information on the genetic variability of more than 170 marine fish species from around the world, available in more than 200 scientific articles published during the last decade.