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Greenpeace drops boulders in the ocean to prevent bottom trawling

In an effort to prevent the destructive industrial fishing method of bottom trawling, Greenpeace has planted 18 large boulders on a seabed off the UK coast. Plans to continue the act of โ€˜protestโ€™ today, however, have been blocked.

Itโ€™s safe to say that ocean conservationists are in the โ€˜last resortโ€™ phase when it comes to dealing with perpetrators.

If you havenโ€™t heard of ocean trawling before, it refers to arguably the most destructive form of industrial fishing. It involves dragging weighted nets up to 650 metres wide across the ocean floor, to catch potentially thousands of low dwelling fish in a single voyage.

This is problematic on several fronts. One, nets arenโ€™t selective with what gets bagged, meaning sharks, sea turtles, marine mammals, and other endangered species are scooped as bycatch. Two, coral reefs are decimated by the concrete weights and natural carbon banks are unsettled by plumes of sediment so large they can sometimes be seen from space.

For a comprehensive overview of bottom trawling, read our previous story here.

Despite the 30×30 campaign now supposedly being in full effect, which strives to protect 30% of the worldโ€™s oceans by 2030, the nefarious practice is still occurring with concerning regularity.


Greenpeaceโ€™s response

Understandably frustrated at the situation, members of Greenpeace have taken proceedings into their own hands.

Off the coast of the UK, the organisation strategically dropped 18 large boulders into the ocean around a Marine Protected Area in the South West Deeps.

Despite technically being under legal protection, the region continues to be heavily targeted by trawling vessels โ€“ with Greenpeace claiming this destructive activity has taken place for the equivalent of 20 weeks within the last 18 months.

The limestone boulders dropped last week are intended to make it impossible for nets to run along the seabed without being destroyed.

This isnโ€™t the first time the tactic has been employed either. In 2020, boulders were placed in the Dogger Bank, and a year later in Offshore Brighton. Since, both protected areas have been unscathed by trawlers.

Right now, there’s an industrial fishing frenzy happening in UK waters, and what’s our government doing about it?โ€™ asked Greenpeace UK’s head of oceans, Will McCallum.

A boulder splashes into the water
Credit: Greenpeace

At odds with government

Greenpeaceโ€™s aims to expand its boulder barrier today (Thursday 8th) have been thwarted by the Marine Management Organisation after threats of legal action.

A further eight boulders were planned to be dropped into the English Channel, but the Pool Harbour Commission (PHC) has been stoked to respond by government. If boulders continue to be released without legal marine permits, itโ€™s reported that the PHC will be liable.

As of this morning, the gates to Bulwark Quay โ€“ where Greenpeaceโ€™s ship is berthed โ€“ were locked and the unnamed company transporting the boulders also received official warnings.

In response to this, Greenpeace asserted: โ€˜Itโ€™s clear that the government can act quickly when it wants to โ€“ so they have no excuse for their painstakingly slow approach to ocean protection.โ€™

โ€˜We stand by our demand that industrial fishing is banned in every UK Marine Protected Area, by adding a simple clause to commercial fishing licences. We wonโ€™t stop until our oceans are truly protected.โ€™

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