Mexico’s critically endangered vaquita porpoise faces imminent extinction due to unchecked illegal fishing activities, according to recent investigations by environmental groups and international commissions. Fewer than ten vaquitas remain, largely trapped and killed as bycatch in illicit gillnets used to capture the totoaba fish, whose swim bladder commands exorbitant prices on Asian black markets.

The United States-Mexico-Canada Agreement (USMCA) Commission for Environmental Cooperation issued a detailed report condemning Mexico’s failure to enforce its own wildlife protection laws. Despite fishing gear bans and protected zones established in the Upper Gulf of California, illegal gillnet use persists widely. Evidence shows that Mexico’s enforcement actions largely fail on the ground, with fishing fleets circumventing controls and trafficked totoaba products funnelled through complex transnational smuggling networks.

Environmental organisations highlight that transnational criminal groups profit from the totoaba trade and are linked to broader illegal activities such as drug trafficking. Mexico’s limited use of promised satellite tracking to monitor fishing boats and inadequate patrol enforcement exacerbate the crisis. Conservation groups partnered with the Mexican Navy and NGOs have succeeded in removing thousands of illegal nets and greatly reducing fishing vessel presence in designated no-fishing “zero tolerance” areas, yet the overall threat remains severe.

The vaquita refuge, established nearly two decades ago and enforced more strictly since 2020, is the last safe habitat for this species which is endemic to the Gulf. Experts warn that unless immediate, comprehensive action is taken, the vaquita could vanish within years, marking one of the most rapid marine mammal extinctions in recent history.

Mexico's environmental authorities have been urged to intensify efforts, including expanding surveillance, clamping down on organized crime involved in wildlife trafficking, and working with international partners to halt the illegal trade. The crisis underscores the complexity of conserving species threatened by illegal extractive industries operating across borders.