# Climate impacts on French aquaculture and gastronomy > Live situation record from CLSTR: https://clstr.news/situations/climate-impacts-on-french-aquaculture-and-gastronomy > Updated: 2026-09-26T23:14:21.000Z. Sources: 7. Developments: 2. Extreme heat and drought conditions in France are significantly impacting various sectors of the country’s aquaculture and gastromony industries. Mussel production has seen a decline of approximately 25% as rising temperatures and reduced rainfall disrupt the nutritional balance of the water. Researchers note that warmer waters increase energy consumption in mussels while a lack of rainfall limits the availability of essential phytoplankton. In the Bay of Saint-Brieuc, some producers have reported losses between 60% and 75% due to the combined effects of warming, ocean acidification, and sea spider attacks. Simultaneously, the availability of snails is being threatened by the country’s hottest summer since 1900 and its second driest. The Burgundy snail is particularly vulnerable to these conditions due to its requirement for moisture. Farmers report significant losses when temperatures exceed 40 degrees Celsius, prompting some producers to explore more resilient species to adapt to the changing climate. ## Timeline ### 2026-09-26: France snails threatened by extreme heat and drought Extreme heat and drought in France are threatening the snail population, a key component of French gastronomy, particularly the iconic Burgundy snail. 2 sources. https://clstr.news/cluster/france-snails-threatened-by-extreme-heat-and-drought ### 2026-09-14: French mussel production drops by 25% amid heatwaves French mussel production has fallen by a quarter as heatwaves, drought, and ocean acidification disrupt nutrient levels and shellfish growth across the country. 5 sources. https://clstr.news/cluster/french-mussel-production-drops-by-25-amid-heatwaves --- Cite as: Climate impacts on French aquaculture and gastronomy. CLSTR, https://clstr.news/situations/climate-impacts-on-french-aquaculture-and-gastronomy