The final battle in the Upper Gulf
We are facing a race against the clock. The protection polygon in the Upper Gulf of Baja California is not just an area delimited on a map—it is literally the last line of defense to prevent the vaquita porpoise from disappearing from the planet. The numbers are brutal: so few specimens remain that each individual counts as a biological treasure.
Networks that drown hopes
Scientist Barbara Taylor puts it bluntly:
Gill nets are the leading cause of death. The animals become trapped and die from suffocation.
It’s that simple and that tragic. Those invisible underwater nets have become deadly curtains for this Mexican porpoise that does not even reach one and a half meters long.
The great thing about the polygon—which covers only 12% of the historic habitat—is that it was designed intelligently. Gustavo Cárdenas, a Conanp biologist, explained to me that they used acoustic records and sightings to map exactly where the last vaquitas are moving. It is not a bureaucratic whim: it is ecological precision surgery.
The Zero Tolerance Zone sounds like an extreme measure because it is. Within that space, zero gillnets. Spot. Lorenzo Rojas-Bracho, another specialist, was clear: “any network present, even for a short time, represents an immediate risk.”
What struck me the most is how they combat ghost networks—those that are abandoned in the background and continue killing for years. They have a “grampineo” program (imagine fishing nets instead of fish) that locates and extracts them. Many come from totoaba poaching, another ecological drama that is intertwined with this one.
Here is the key fact: legal fishermen respect the polygon and even participate in cleanups, although their work area was reduced. The real problem comes from the shadows—from those who operate on the sidelines during specific seasons when illegal activity increases.
Surveillance mixes old and new technology: long-range binoculars along with drones and acoustic devices that capture the vaquitas’ ultrasonic clicks. It’s like listening to whispers in the middle of the ocean to better protect them.
In the end, this polygon is not just an ecological measure—it is a concrete political act. Maintaining it means betting that a unique species is not just a memory in books. Meanwhile, they are looking for fishing alternatives that keep the local economy alive without sacrificing the last that remains of this porpoise.
The political theater here has an underwater stage, and each removed net is a small triumph against extinction.
