With sea ice declining, bowhead whales are staying longer in the waters north of Bering Strait. A change in migration patterns could affect the health and safety of bowheads, as well as access to the subsistence resource for hunters in Arctic Alaska.
With ice declining, bowhead whales of the Pacific Arctic are staying
“When there is less ice in the Bering Sea in late fall, bowheads are more likely to winter north of Bering Strait,” Szesciorka said. “When there is more ice in the Bering Sea — and the Chukchi Sea — they are more likely to winter south of Bering Strait.” Angela Szesciorka presents the results of the study about changes to bowhead whales’ migration at the Arctic Science Summit Week in February 2023, in Vienna, Austria. In the fall, the whales traditionally travel south, following the new ice in the Bering Strait, Szesciorka said. New ice is easier to travel and breathe through, compared to thick perennial ice up in the Arctic, she explained.
or visualizations of sounds over time, researchers documented when they heard bowheads passing north and south, Szesciorka said.perhaps males calling females to mate, according to the study. During the summer and fall, whales also produce simple, low-frequency sounds, unrelated to songs, that likely help animals communicate during their migrations.
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