Noise pollution is messing with the undersea symphony - even in Marine Protected Areas

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New Zealand
Image by Atrak Petrosyan via UnSplash
Image by Atrak Petrosyan via UnSplash

Marine Protected Areas need to protect sea creatures from more than just fishing, say New Zealand researchers. Noise pollution, for example, has a significant impact on many species' survival because it messes with their ability to communicate, breed, hunt, avoid predators, and find suitable homes. They argue that as countries around the world work towards protecting 30% of the global ocean by 2030, they must prioritise larger and fully protected MPAs, and restricting boat traffic to reduce the impacts of human noise.

Expert Reaction

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Dr Louise Wilson is a Research Fellow in Marine Science at the Leigh Marine Lab, University of Auckland

Marine protected areas should be designed to consider all stressors in the marine environment - not just fishing.

"Recent research by our group at the University of Auckland, and elsewhere overseas, has shown that marine protected areas do not function to protect marine species from sound pollution.

"Many species in the marine environment rely on sound to communicate, breed, find prey, and avoid predators. Sound pollution, such as noise from boats, impacts their ability to do this. Existing marine protected areas which are small in size and marketed for tourism fail to protect marine species from sound pollution. Broader thinking is needed to design marine protected areas to mitigate sound pollution - such as restricting boat traffic and/or implementing larger protected areas with boundary zones where boating is not allowed.

Last updated:  13 Feb 2025 2:09pm
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Declared conflicts of interest Dr Louise Wilson is lead author of this paper.

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Marine Pollution Bulletin
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