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NOAA: Pacific Cod Gene Study Shows How Warming Oceans Threaten Larval Survival

UNITED STATES
Monday, February 09, 2026, 06:00 (GMT + 9)

New gene expression research links marine heatwaves to energy depletion and inflammation in young cod, raising concerns for the future of Alaska’s fisheries. Newly hatched Pacific cod larva. Credit: NOAA Fisheries/Emily Slesinger A new scientific study reveals how rising ocean temperatures and ocean acidification affect Pacific cod larvae, shedding light on why recent marine heatwaves may be driving population declines in the Gulf of Alaska. Using advanced gene expression analysis, researchers found that while cod larvae can tolerate cold and acidified waters, warming temperatures may trigger fatal energy shortages and inflammatory responses during early life stages.

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Feb 9, 04:00
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Feb 9, 02:00
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