Economic benefit analysis of the application of eco-friendly aquaculture technology in the farming of groupers and the fourfinger threadfin

Eco-friendly aquaculture technology has become a major global trend in recent years. This study's investigation and analysis revealed that eco-friendly aquaculture management technologies increased the production per unit area of the grouper and the fourfinger threadfin. From an economic perspective, it was estimated that the application of eco-friendly aquaculture management technology might increase grouper production by 18.6 metric tons/ha and the output value by US$7,106.9/ha per year, as well as decrease electricity consumption by 1,510.45 kWh/ha/month. It was estimated that for fourfinger threadfin, the use of eco-friendly aquaculture management technologies might increase the production by 10.1 tons/ha and the output value by US$5,031.8/ha each year, as well as reduce the electricity consumption by 257.18 kWh/ha/month. As such, eco-friendly aquaculture management technologies may increase the output value while reducing energy consumption and costs. Furthermore, regression analysis with dummy variables showed that factors affecting grouper production per unit area included applying eco-friendly aquaculture management technology, stocking density, and harvest specifications. However, no significant relationship was identified between breeding time and production per unit area, and the correlation coefficient was negative. The main factors positively affecting the production per unit area of the fourfinger threadfin were stocking density, the application of eco-friendly aquaculture management technology, and harvest specifications. However, a longer breeding time did not result in better production per unit area. This study showed that eco-friendly aquaculture management technology increased the production per unit area and reduced water consumption, electricity consumption, and operating costs to promote sustainable use of water and land resources and sustainable industrial operation and development.