North Pacific humpback whale population declined 20% between 2012-2021, coinciding with marine heatwaves.
A study reveals a 20% decline in North Pacific humpback whales between 2012 and 2021, coinciding with a marine heatwave. Using a photo-identification dataset, researchers found that the whale population had previously increased until 2012 due to conservation efforts and the end of commercial whaling. Marine heatwaves are believed to be the main cause behind the sharp decline in their numbers.
February 28, 2024
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