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Overfishing has caused cod to halve in body size since 1990s . . . Overfishing has caused cod to halve in body size since 1990s, study finds Source: Guardian Overfishing has led to a collapse in the eastern Baltic cod population, but over the past three decades the size of the fish themselves has also been dramatically and mysteriously shrinking
Overfishing has altered the genetic makeup of cod Decades of overfishing of cod stocks in the Baltic Sea have led to a change in the genetic make-up of the fish They reproduce at ever smaller sizes - a survival advantage
Overfishing has caused cod to halve in body size since… - inkl Freshly caught cod The median length of the fish is now half – and the median weight a fifth – of what it was in 1996 Photograph: Arctic Images Alamy Overfishing has led to a collapse in the eastern Baltic cod population, but over the past three decades the size of the fish themselves has also been dramatically and mysteriously shrinking
Genomic evidence for fisheries-induced evolution in Eastern . . . Rapid evolutionary changes caused by anthropogenic pressures, e g , overfishing, pose special challenges in detecting induced selection processes, as the changes usually span a relatively short time frame (corresponding to a few fish generations) insufficient for a conventional sweep-like pattern caused by the complete fixation of focal alleles