Mexico’s federal fishing authority, CONAPESCA, has imposed a two-year total ban on chocolate clam harvesting in the marine waters around Loreto, effective through December 2027, after population data revealed a sharp collapse in the species.
The numbers behind the ban are stark. Average clam sizes have dropped from 300 grams to just 80 grams, and local fisheries are operating at roughly 50% capacity. CONAPESCA’s order prohibits not just the capture of the mollusk, but also its transport and sale, cutting off the entire supply chain.
For Loreto’s fishing community, the impact is immediate. Fishermen who built their livelihoods around the harvest are now looking for alternative income while the clam population recovers. The chocolate clam, a large, meaty bivalve native to the Sea of Cortez, has been a staple of coastal life in the region for centuries.
Restaurants in and around Loreto will need to rebuild menus without what has long been a signature local ingredient. Visitors expecting to find traditional chocolate clam dishes should plan accordingly. The ban runs through the end of 2027, and there is no legal exception for commercial or recreational purposes during that period.
The measure also reflects a broader pattern of marine conservation enforcement in the Sea of Cortez, which UNESCO designated as a World Heritage Site in part because of its extraordinary biodiversity. Conservationists have long warned that unchecked harvesting of slow-maturing shellfish poses serious long-term risks to the ecosystem. This ban suggests federal authorities are responding to those warnings with more than incremental limits.
Whether two years is enough time for the chocolate clam population to meaningfully recover remains to be seen. CONAPESCA has not publicly outlined what benchmarks would need to be met before harvesting resumes.