Bristol Bay Sockeye Weights Down by One Pound, Similar Losses for Other Salmon
Since 2010 Alaska salmon have been getting smaller.
That conclusion is based on 60 years of measurements from 12.5 million salmon across Alaska, excluding pinks. A study by Nature Communications has compared average body lengths before 1990 and after 2010.
Chinook salmon have shown the most size reduction, averaging an eight percent decline, reductions in per fish egg production by16%, nutrient transport down 28%, a 21% decline in fisheries value and a 26% decline in meals for rural people...
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