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Seasonal Changes of Biochemical Composition in Cultured Bivalves

Yun-Kyung Shin, Sung-Yeon Kim, Tae-Seok Moon, Mi-Seon Park and Yoon Kim

South Sea Fisheries Research Institute, National Fisheries Research and Development Institute, Yosu 556-820, Korea

Seasonal changes in biochemical composition of Crassostrea giggas and Scapharca broughtonii in the Kosong bay and Kangjin bay, southern Korea were studied over 12 months in relation to their habitat. In Crassostrea giggas, protein was high during summer in all experimental station, but lipid and carbohydrate were high during winter, and no clear difference was between experimental station. Glycogen content was sharply decreased during summer, and energy content was low but carbohydrate was high during summer. In Scapharca broughtonii, protein was low, but carbohydrate was high during summer. Lipid was high from February to March, glycogen content was low from June to September. Energy content was low during winter and no clear difference biochemical composition was between experimental station of Scapharca broughtonii.

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