SCIENTISTS warn that overfishing and environmental change are eroding the biological foundations of many fisheries, with a new analysis revealing a global decline in fish growth over the last century.
Researchers from Australia’s James Cook University (JCU) analyzed nearly 7,700 growth records covering 1,479 marine species from 1908 to 2021, and found declining growth performance from about 1908 onwards, with the greatest declines concentrated among commercially valuable species, said a recent university statement.
Human-driven pressures are causing large-scale changes to the ecologies and life histories of fishes, said Helen Yan who led the study as part of her PhD programme at JCU. Researchers measured growth performance — a life-history trait that captures the trade-off between growth rate and body size — across 113 years.
Xinhua
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