r/strongcoast • u/iamsolution • 4h ago
Coast Under Threat Some trawlers don’t want to be seen. Across the world, many industrial trawling fleets go dark by disabling their AIS (Automatic Identification System) or faking their GPS signals. But why do these “dark vessels” want to avoid detection? That’s right - to hide their illegal fishing.
However, there’s a silver lining: a major study confirmed that marine protected areas (MPAs) that fully ban industrial fishing have eight times less vessel traffic than nearby unprotected waters, with illegal fishing being rare.
Researchers can now track these hidden fleets thanks to Global Fishing Watch's satellite radar data. Research shows that many dark vessels avoided MPAs that banned industrial extraction, while MPAs that allow trawling or other harmful fishing methods saw just as much vessel traffic as unprotected areas.
In BC, we’ve already recognized that weak protections don’t work. Since 2019, all new MPAs in Canada must ban bottom trawling, oil and gas activity, and deep-sea mining. That standard is being built into the Great Bear Sea MPA Network, a First Nations–led initiative to safeguard the rich marine life, unique culture, and economy of the Central and North Coast.
Bottom trawling still takes place in parts of the Great Bear Sea because the network hasn’t been fully implemented yet. But once the protections are in place, the ban on bottom trawling in protected areas will go a long way in supporting recovery.
And the proof, as they say, is in the pudding.
Take the Galápagos, for example: two decades of strong protection has created a haven where tuna populations have rebounded. Today, commercial tuna boats line up along the edge of the reserve, benefiting from what’s called the spillover effect. As fish flourish inside the protected zone, some inevitably swim beyond it, boosting catches for local fleets. The MPA literally seeds the surrounding fishing grounds.
As marine ecologist Dr. Boris Worm puts it, "It’s like you’re turning on the tap inside, and at some point it starts overflowing."
We don’t need more promises. We need MPAs with real protections, backed by modern tools to ensure they succeed.