The system includes energy production (red), feed production (green), the main chain of aquaculture production (blue), and the production of other inputs (purple). When using this data set for Life Cycle Assessment (LCA), ensure that the geographical and methodological boundaries are defined as per the data collection regions of Ningde, which include Fuding city, Xiapu County, Fu'an city, and Jiaocheng district. Be aware that the assessed households were engaged specifically in sea-based cage aquaculture during the year 2016. This data set should be used with consideration of the particular feed type used (trash fish) and the production of energy, feed, and other inputs as segmented by color codes. Any system expansion or allocation procedures should also take into account the locale-specific practices and data from the sampled 292 households.