中国的鳗，快被日本吃光了？

Core Viewpoint - The article discusses the critical situation of eel populations, particularly in Japan, where overfishing and ecological damage have led to a severe decline in native eel species, with Japan consuming 70% of the world's eels despite only having 1.5% of the global population [4][5][22]. Group 1: Eel Consumption and Supply - Japan's domestic eel supply in 2023 was 57,099 tons, with imports accounting for 38,750 tons, indicating a reliance on foreign sources for over two-thirds of its eel consumption [5]. - China is the world's largest eel farming and exporting country, exporting 64,000 tons in 2022, which not only meets Japan's demand but also supplies other countries [8][10]. Group 2: Challenges in Eel Farming - A significant challenge in eel farming is the high cost of eel fry, with many farms in China relying on imported eel fry from the Americas due to the scarcity of local sources [10][15]. - Eels undergo complex developmental stages, and only the final stage, the silver eel, is capable of reproduction, complicating artificial breeding efforts [17][19]. Group 3: Declining Eel Fry Resources - The global eel farming industry is facing a crisis due to the depletion of eel fry, with Japan's catch dropping from 140 tons in 1965 to around 10 tons currently [23]. - In China, the native eel species has nearly disappeared, and the remaining fry are primarily sourced from Japan and the Americas, raising concerns about sustainability [24][26]. Group 4: Ecological Impact - The decline of eel populations poses a significant threat to ecological balance, as eels play a crucial role in connecting freshwater and marine food chains [32]. - The disappearance of eels could lead to overpopulation of certain species and a decline in others, disrupting the entire ecosystem [32].