On a clear morning, stroll along the cliffs close to Hastings. The sea appears incredibly serene, almost staged. It has a picture-perfect appearance that makes you forget what’s going on a few miles away. However, there has been something much less attractive going on for years beneath that serene exterior. Large nets—some of which are wider than a Premier League field—continue to be hauled over areas of the ocean floor that the British government maintains are protected. One thing can be inferred from the map. Another is said by the water.
After a minute of contemplation, the figures are truly hard to comprehend. In just four years, over 1.3 million tonnes of fish were removed from so-called Marine Protected Areas. It’s difficult to disagree with how Greenpeace UK, which analyzed the data, framed it as a national scandal. The protected label is present in about 40% of England’s seas. Based on available data, the label is meaningless. Reading the numbers gives the impression that the word “protected” is performing a great deal of unjustified labor.
| Marine Protected Areas (UK) — Key Information | Details |
|---|---|
| Total Designated MPAs (UK) | 377 sites covering nearly 350,000 km² |
| Share of England’s Seas Designated | Almost 40% |
| Fish Caught Inside MPAs (2020–2024) | More than 1.3 million tonnes |
| Bottom-Towed Gear Catch | Roughly 250,000 tonnes |
| Hours of Suspected Bottom-Trawling in 2024 | Over 20,000 hours in offshore MPAs |
| Pelagic Net Dimensions | Up to 240m wide, 50m long |
| Offshore MPAs Allowing Bottom-Trawl Gear | 90% |
| Species at Critically Low Levels | North Sea cod, Celtic Sea cod, Irish Sea whiting, herring, mackerel |
| Lead Campaign Group | Greenpeace UK |
| Status of Bottom-Trawling Bylaws | Still in consultation, six years on |
| Global Target Cited by Campaigners | Protect 30% of the ocean by 2030 (30×30) |
The discrepancy between the language used by ministers and the real situation at sea is what makes the whole situation more difficult to handle. The government acquired additional authority to limit fishing in conservation areas six years ago. For six years. Additionally, the bylaws prohibiting bottom trawling are still, in some way, in the consultation stage. Some of it might be explained by bureaucratic caution. It’s also possible that no one in Westminster has ever felt the need to argue with the fishing lobby. Most likely both.
I believe that most people still don’t fully understand bottom trawling. The typical analogy is clear-cutting a rainforest, but it would be underwater and invisible. Carbon plumes so massive that satellites can detect them are released as heavy chains and weighted nets scrape across the seafloor, stirring up sediment and flattening centuries-old coral. Whatever gets in the way—fish, crabs, dolphins—ends up dead in the wake or in the net. This one technique accounts for up to 92% of fishing discards reported in the EU. It’s not a rounding error.

You won’t find mackerel on the shelf if you walk into a Waitrose today. The Marine Conservation Society’s warnings prompted the supermarket to remove it last month. Mackerel. The most common fish in British waters has suddenly become so delicate that a large chain would prefer not to sell it. Cod from the North Sea falls into the same category. Cod from the Celtic Sea. Whiting in the Irish Sea. The trawlers manage to continue despite the growing list.
When questioned, proponents of the sector typically claim that fisheries feed the nation and sustain coastal jobs. Both are accurate. However, the industrial fleets are putting the greatest pressure on small-scale fishermen, who operate out of Scottish or Cornish ports with lighter equipment and smaller boats. Everyone is affected when stocks plummet. The large trawlers are free to proceed. The villages are unable to.
As this develops, there’s a sense that the British public is still unsure of how furious to be. The majority of people are unaware of what occurs forty miles offshore. They see the sea, which is serene, gray, and seemingly in good condition. The activists are wagering that politics will change once the picture becomes clear and enough people realize that “protected” has, for the time being, meant very little. The question that no one can yet answer is whether they are correct and whether anything moves before too much is already gone.
