Vaquita Calf Sighted: Hope for Endangered Species

In September 2025, a remarkable sighting occurred in the Upper Gulf of California: a mother vaquita was filmed with her calf. This event is particularly significant given that the vaquita population has dwindled to an estimated 6 to 8 individuals. The vaquita, the world's smallest and most endangered cetacean, inhabits a very restricted area of approximately 1,545 square miles.

This sighting took place within the Zero Tolerance Zone, a protected area crucial for vaquita conservation where all fishing is forbidden. Efforts by Sea Shepherd and the Mexican Navy actively remove dangerous gillnets, often referred to as ghost nets, which pose a severe threat. These nets are the primary cause of vaquita mortality, largely due to illegal fishing for totoaba.

Vaquitas reproduce slowly, with females typically giving birth to one calf every one to two years. Successful births are therefore vital for the species' survival, offering a measurable boost to their critically low numbers. Researchers are also exploring alternative fishing methods to support local livelihoods while reducing the reliance on harmful gillnets.

International protection through CITES Appendix I is in place, but Mexico's enforcement within the refuge and the Zero Tolerance Zone is paramount. The species' survival into the next decade hinges on curbing illegal totoaba fishing and allowing the remaining vaquitas, including any new calves, to reproduce successfully.