plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111elSSN : 2287-8815
Regional Differences in Growth Characteristics and Nutritional Compositionof Cultured Single Oyster (Crassostrea gigas) in Korea
양진우·윤나영1·이가정1·조미라·이정호·이희중*
국립수산과학원 남동해수산연구소, 1국립수산과학원 식품안전가공과
This study investigated regional differences in the growth characteristics and nutritional composition of cultured single oysters (Crassostrea gigas) produced in three major regions (Namhae, Geoje, and Tongyeong) of Korea. Oyster samples were collected in December 2023. Oysters from Namhae exhibited significantly higher growth parameters, such as tissue weight, and total amino acid content compared to those from Geoje and Tongyeong. Furthermore, Namhae oysters showed higher protein and lipid content with polyunsaturated fatty acids, particularly eicosapentaenoic acid and docosahexaenoic acid. Alanine, glutamic acid, and proline were the predominant free amino acids across all regions, though their relative proportions varied by location. These findings demonstrate that regional environmental factors, such as water temperature and feed availability, significantly influence the growth, nutritional quality, and biochemical traits of cultured single oysters. Overall, this study provides valuable basic data for evaluating regional quality variations and developing targeted management strategies for high-quality single oyster production in Korea.
Crassostrea gigas, Single oyster, Nutritional composition, Amino acid, Fatty acid