Marine Litter in Submarine Canyons: Unseen Threats and Urgent Needs

by Jon Scaccia November 30, 2023

We are constantly reminded of the environmental challenges we face, especially concerning pollution. But while most of us are familiar with the litter on beaches or floating on the ocean’s surface, there’s another side to this problem lurking in the depths of our oceans: marine litter in submarine canyons. A recent study titled “Marine litter in submarine canyons: A systematic review and critical synthesis” sheds light on this often-overlooked issue.

The Hidden World of Submarine Canyons

Submarine canyons are like underwater valleys, some even larger than the Grand Canyon! They’re crucial for marine life, providing habitats and pathways for nutrients. However, they’re also becoming dumping grounds for our waste, particularly plastics and fishing gear.

Why Should We Care?

Most of us won’t visit a submarine canyon, so it’s easy to think this isn’t our problem. But the health of these canyons affects the ocean’s overall health and, in turn, our planet’s wellbeing. Pollution in these canyons can harm sea creatures, damage delicate ecosystems, and even impact our food sources.

The Shocking Findings

The study reveals that less than 1% of submarine canyons have been studied for litter, meaning we have barely understood this issue. More alarming is that over 91% of these studies focus on European waters, leaving vast areas unexplored. This lack of data means we could be underestimating the scale of the problem.

The Culprits: Plastics and Fishing Gear

Due to their durability and widespread use, plastics are a significant part of the litter found in these canyons. But it’s not just bottles and bags; derelict fishing gear is also a major problem. These materials can entangle and harm sea creatures, disrupt habitats, and even travel to different regions, spreading the problem further.

What Can We Do?

This issue might seem overwhelming, but there are steps we can take:

1. Reduce Plastic Use: Simple actions like using reusable bags, bottles, and containers can significantly reduce plastic waste.
2. Support Sustainable Fishing: Opt for seafood from sustainable sources and support regulations that reduce fishing gear loss.
3. Spread Awareness: Share information about this issue to raise awareness. The more people know, the more they can help.
4. Support Research and Cleanup Efforts: Donations to organizations conducting ocean cleanups and research can make a big difference.

The Path Ahead

This study is a wake-up call to the hidden crisis in our oceans. It’s a reminder that our actions have far-reaching consequences, and it’s up to us to make changes. The health of our oceans is crucial for our planet’s future, and every little effort counts in preserving these amazing underwater worlds.

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