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Whales and ship collisions pose a serious threat to these creatures, with some estimates suggesting that tens of thousands of whales may die each year as a result. While many incidents go unreported, new research highlights a solution that could dramatically reduce these risks by targeting just a small fraction of the ocean.
Scientists have identified global hotspots where whale-ship collisions are most likely to occur, yet most of these areas lack protective measures. Dr. Jennifer Jackson of the British Antarctic Survey, part of the research team, explained, “This is the first study to look at this problem at a global scale.” Using data from 435,000 whale locations and over 35 billion ship movements, researchers revealed that shipping overlaps with 91.5% of the ranges of blue, fin, humpback, and sperm whales.
The study pinpointed areas of highest risk, primarily near coastlines but also in open seas like the Azores. Alarmingly, less than 7% of these hotspots are currently protected by voluntary measures, and less than 1% by mandatory regulations. Expanding management strategies such as vessel slowdowns or route adjustments to just 2.6% of the ocean’s surface could cover all identified risk zones, significantly reducing the threat to whales.
The issue is becoming more urgent with rising shipping activity and the potential for the climate crisis to open new Arctic trade routes, further endangering whales. Conservation advocates, like Sally Hamilton of Orca, are calling for the shipping industry to prioritize creating safe marine spaces. “The shipping industry have an opportunity to put vessel strike at the heart of their environmental strategy,” she said.
Experts agree that a small-scale but targeted approach could have a big impact. Dr. Freya Womersley of the Marine Biology Association remarked, “It’s encouraging to see that targeted shipping management…could achieve full strike-risk hotspot coverage, making positive Conservation outcomes very achievable.”
By acting now, governments, conservationists, and the shipping industry can help protect whales from unnecessary harm and ensure their survival for generations to come.
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