Measuring the effect of climate change on freshwater aquaculture production in China

Freshwater aquaculture is essential for food security and the sustainable development of global aquaculture and currently there are great concerns about potential threats from climate change. This paper attempts to identify the influence of climate change on freshwater aquaculture empirically. The research incorporates climatic factors together with other freshwater aquaculture production factors into a classic Cobb-Douglas production function to investigate their impact on freshwater aquaculture production. The data include a set of statistical panel data of freshwater aquaculture production and climate change factors in 15 major freshwater aquaculture provinces of China during 2006–2020. The results reveal that climate change has an inverted U-shape impact on Chinese freshwater aquaculture production and the impact exhibits spatial heterogeneity across the coastal and inland provinces and across the northern and southern provinces in China.