plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111elSSN : 2287-8815
An Economic Feasibility Comparison of the Black Rockfish Sebastes schlegeli by Region in the Net Cage Culture
김남리·도용현1·박정준1·김혜성1*
국립수산과학원 제주수산연구소, 1국립수산과학원 양식연구과
Rockfish Sebastes schlegeli is a representative marine cage culture species alongside the olive flounder in the production of cultured fish in Korea; however, despite the use of a larger aquaculture area than in the past, productivity has declined, resulting in a decrease in the output per unit area. Therefore, by analyzing the economic feasibility of individual farms based on field surveys, we aimed to identify the causes of declining production efficiency and differences in regional production methods. In this study, the management status and economic performance of 30 rockfish farms located in 3 regions the southern (Gyeongnam, Jeonnam), western (Taean), and eastern (Pohang) coasts were analyzed. The results showed that the average NPV in the southern coast was -768,667,494 KRW in Gyeongnam and -658,366,079 KRW in Jeonnam, indicating insufficient economic feasibility. In contrast, the average NPVs for the western and eastern coasts were 3,901,628,094 and 5,851, 381,764 KRW, respectively. The primary factor contributing to the economic nonviability of the southern coastal region was the decline in the survival rate due to hightemperatures. Policy measures should be developed to mitigate high-temperature damage, and stabilize management considering regional environmental conditions.
Black rockfish, Sebastes schlegeli, Aquaculture, Profitability, Net present value