Future climate impacts put whale diet at risk

A new study led by Griffith University predicts that future climate change impacts could disrupt the krill-heavy diet that humpback whales in the southern hemisphere consume.

"At present, there is no evidence of a divergence from a high-fidelity krill diet, but the characteristic isotopic signal we discovered of whales feeding in productive upwelling areas or in the marginal sea-ice zone, implies that future reductions in sea-ice extent and duration, and rising ocean temperatures could impact their feeding ecology."

Dr Groß said the importance of this study in confirming that each population followed a high-fidelity Antarctic krill diet could be used as baseline knowledge to assess the extent of climate change impacts in the feeding grounds in future studies.

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Future climate impacts put humpback whale diet at riskA new study led by Griffith University predicts that future climate change impacts could disrupt the krill-heavy diet that humpback whales in the southern hemisphere consume. The study, 'No distinct local cuisines among humpback whales: A population diet comparison in the Southern Hemisphere,' has been published in Science of the Total Environment.
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