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Antarctic Fish “Hibernate” in Winter
“By contrast, these Antarctic fish actively reduce their ‘cost of living,’” he said… “The fish became 20 times less active in winter compared to summer,”… About every week or so the cod wake up and swim around for a few hours, the team observed. “This is quite similar to ‘denning’ in bears, where the hibernation isn’t so deep and the animals can be disturbed, then spend some time awake before going back to bed,” Fraser said.
Full paper: Hibernation in an Antarctic Fish: On Ice for Winter - Arctic Sharks - Antarctic Robo-sub
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