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Marine Heat Waves Trigger Shift In Hatch Dates And Early Growth Of Pacific Cod

Marine heat waves appear to trigger earlier reproduction, high mortality in early life stages and fewer surviving juvenile Pacific cod in the Gulf of Alaska, a new study from Oregon State University shows.

These changes in the hatch cycle and early growth patterns persisted in years following the marine heat waves, which could have implications for the future of Gulf of Alaska Pacific cod, an economically and culturally significant species, said Jessica Miller of OSU’s Coastal Oregon Marine Experiment Station at Hatfield Marine Science Center in Newport and the study’s senior author.

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