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New study finds cod are shrinking from overfishing The shrinking of the cod, as well as the decline in its population, is due to decades of intensive fishing combined with environmental changes (Thorsten Reusch GEOMAR) (CN) — Intensive fishing caused the once-mighty cod to shrink by roughly half its size between 1996 and 2019, according to a new paper, published Wednesday in Science Advances
Overfishing has caused cod to halve in body size since 1990s . . . Overfishing causes cod to shrink in body size A study found that intensive fishing has driven rapid evolutionary changes in eastern Baltic cod, causing their average body length to halve from 40cm in 1996 to 20cm in 2019 This 'shrinking' has a genetic basis, as larger individuals were consistently removed, giving smaller, faster-maturing fish an evolutionary advantage The findings, published