The Mexican government is proposing a $37 million plan to ban gillnet fishing in most of the upper Sea of Cortez in order to save the critically endangered vaquita marina, the smallest porpoise in the World.
The plan would see fishermen receiving compensation for stopping the use of nets that often sweep up the tiny porpoises along with their intended catch.
Recent reports suggest there are fewer than 100 of the shy, elusive porpoises left in the Sea of Cortez, which is also known as the Gulf of California. The gulf is the only place on Earth where the marine mammals can be found.
The proposal was submitted last week for mandatory public consultation, and could be implemented in a couple of months from now.
There is already a protected reserve area around the mouth of the Colorado River delta, but the new proposal would greatly increase the no net-fishing area southward.
The new area would essentially include almost all of the vaquitas’ known range. The ban would initially be in place for two years.
The plan presented by the Agriculture and Fisheries Department would pay some of the fishermen to work patrolling the area to detect violations of the net ban. Some non-threatening net fishing techniques would be allowed for some months of the year.
Omar Vidal, of the World Wildlife Fund, praised the plan but noted that “enforcement is the main challenge,” because of illegal fishing by small boats in the area.
The biggest threat to the proposed plan is China’s hunger for totoaba swim bladders. Though fishing for totoaba is already illegal, the sky-high prices that Chinese chefs are prepared to pay make it a lucrative illicit industry. According to the Smithsonian Institution’s website, one totoaba bladder can attract up to $5,000 in the United States, and more than $10,000 in parts of Asia.
But with maybe only a couple of dozen reproductively mature females left, Vidal noted, there isn’t much time left.
Experts agree that capturing vaquitas to breed them in captivity isn’t an option because it would not be feasible to capture or hold a sufficient number of them to develop a captive breeding program. Furthermore, with so few vaquitas spread over such a huge area, chasing down and catching them would risk killing off the few remaining ones left.