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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 . . . The scientists combined annu- al growth data with the cods’ body size metrics and genetics to assess whether there had been a genetic shift in the population over years under fishing pressure Between and 2019, the median length of a mature cod in the dataset fell from 40cm to 20cm
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 Now scientists have uncovered genomic evidence
Cod Shrinks: Overfishing Drives Evolutionary Change A recent study reveals that cod, a staple in British fish and chips, has shrunk by nearly 50% over the past 30 years, primarily due to overfishing and environmental changes Once measuring over a meter, the largest cod now averages just 54 cm Researchers warn that these changes reflect significant evolutionary impacts, complicating future recovery efforts The findings highlight the need for