大西洋蓝蟹在意大利波河三角洲和威尼斯南部亚得里亚海沿岸大量繁殖，对当地传统渔业造成严重冲击。1气候变化导致的水温上升和干旱引发的盐度变化促进了蓝蟹的扩散，雌性蓝蟹每季可产高达800万枚卵，使其繁殖能力远超当地现有灭绝努力。1
面对这一生态入侵，意大利政府曾于2024年启动蓝蟹灭绝计划，支付合作社捕获并焚烧近230万公斤蟹，但这一措施因蓝蟹的强大繁殖能力而未能有效控制种群。1波莱西内渔民合作社联盟因蓝蟹泛滥遭受重创，收入下降75%，活跃成员从1500人减至850人。1传统贝类曾售价每公斤10欧元，如今仅占收入10%，而蓝蟹每公斤仅售1.30欧元。1
鉴于灭绝计划的失效，渔民合作社采取了新策略——将捕获的蓝蟹商业化出口。1蓝蟹经蒸煮、冷冻、装箱后运往斯里兰卡，由当地公司Taprobane Seafoods进行手工去肉处理。1联合合作社预计2025年收入2000万欧元，其中大部分来自蟹类销售。1与此同时，博洛尼亚大学科学家于今年夏季在里维埃拉罗马尼亚地区投放15万尾幼章鱼，试图通过生物控制来遏制蓝蟹种群。1意大利本地餐饮界也在探索烹饪创新，以改变意大利人对蓝蟹的传统抵触态度。1
Atlantic blue crabs have proliferated rapidly along Italy's Po River Delta and the Adriatic coast south of Venice, devastating the region's traditional shellfish industry due to rising water temperatures from climate change and shifting salinity levels caused by drought 1. The invasive crustaceans have fundamentally altered the economic landscape for local fishermen, forcing a dramatic shift in strategy after initial eradication efforts proved ineffective.
The scale of the crisis is reflected in the financial toll on fishing cooperatives in the Polesine region, where revenues plummeted 75 percent between 2024 and 2025, while active membership fell from 1,500 to 850 people 1. Government-sponsored efforts to cull the population through incineration proved unsustainable; authorities paid cooperatives to capture and burn nearly 2.3 million kilograms of crabs in 2024, yet the blue crabs' reproductive capacity—with females producing up to 8 million eggs per season—has rendered such measures insufficient 1. The economics of the crisis underscores the severity: blue crabs fetch only 1.30 euros per kilogram, compared to the 10 euros per kilogram that shellfish once commanded, with crustaceans now accounting for just 10 percent of cooperative income versus 90 percent historically 1.
Faced with an infestation they cannot eliminate, Italian fishermen have pivoted to commercial export. Blue crabs are now steamed, frozen, and boxed for shipment to Sri Lanka, where the company Taprobane Seafoods processes them by hand to extract the meat 1. This unconventional strategy has become central to maintaining livelihoods; combined cooperatives project revenues of 20 million euros for 2025, with most income derived from crab sales 1. Meanwhile, researchers are exploring alternative approaches: scientists from the University of Bologna released 150,000 young octopuses in the Riviera Romagna region this summer, potentially offering a biological control mechanism 1.
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