Mexico sees progress saving endangered porpoises | REUTERS

Key Concepts

• Vaquita marina
• Endangered marine mammal
• Gulf of California
• Illegal gillnet fishing
• Totoaba fish
• Zero tolerance zone
• Satellite terminals
• International cooperation
• Biodiversity

Vaquita Marina Sightings and Population Status

Mexican authorities and conservationists have reported sightings of at least two healthy vaquita marina porpoises. These sightings occurred during a September observation cruise in the Gulf of California. Julian Iskutia, executive director of Sea Shepherd, described the sighting on September 23, 2025, as a "magical moment." He detailed how the two vaquitas were initially spotted through long-range binoculars and then observed directly from 200 meters away, appearing to be playing and looking healthy.

Progress in Vaquita Conservation

Mexico's biodiversity under secretary, Marina Robles Garcia, stated that recent monitoring indicates the vaquita population's decline has been halted. This progress is attributed to enhanced surveillance and international cooperation.

Key Conservation Measures and Data

• Reduction in Vessel Detection: The number of vessels detected within the "zero tolerance zone" has decreased by 97.6%, from 171 to 4 over the past few years.
• Removal of Illegal Gillnets: Conservationists and the Mexican Navy have collaborated to remove illegal gillnets, a primary threat to the vaquita.
• Satellite Monitoring: 848 satellite terminals have been installed on local fishing boats to monitor compliance and prevent illegal activities.
• On-Land Verification: Marine infantry personnel are verifying that fishing boats are not carrying prohibited fishing nets or illegal fish upon arrival or departure.

Threats to the Vaquita Marina

The vaquita marina, endemic to Mexico's Gulf of California, faces extinction primarily due to illegal gillnet fishing. This fishing targets the totoaba fish, whose swim bladders are highly valued in Asian black markets.

Call for International Support

Mexico has appealed for increased international support to combat illegal fishing and trafficking networks that contribute to the vaquita's endangerment.

Synthesis/Conclusion

Recent positive developments, including direct sightings of healthy vaquitas and a significant reduction in illegal fishing activity, suggest that conservation efforts in the Gulf of California are yielding results. The halt in population decline, attributed to improved surveillance, international cooperation, and the removal of illegal gillnets, offers a glimmer of hope for the world's most endangered marine mammal. However, the persistent threat posed by illegal totoaba fishing and the demand for their swim bladders necessitates continued and strengthened international collaboration to ensure the vaquita's long-term survival.