Abstract: Six mineral elements and 18 amino acids in soft tissues of wild and farmed swan mussels (Anodonta woodiana) respectively collected from Meilianghu natural water of Taihu Lake and Nanquan aquaculture farm of Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and liquid chromatography (LC), respectively. Although 6 mineral elements and 18 amino acids in swan mussels from two different habitats were ranked in a similar order of their content, significant differences in the contents of some mineral elements and a few amino acids were observed among habitats. The levels of mineral elements such as Ca, Na, Mg, Sr and Se, especially for Mg and Sr in wild swan mussels were significantly higher than those in farmed swan mussels. However, the content of K in farmed mussels was significantly higher than that in wild mussels. Moreover, wild and farmed swan mussels revealed basically similar amino acid composition, and 17 amino acids showed no significant difference in their content, but farmed swan mussels contained significantly more taurine. The contents of essential amino acids in farmed mussels and wild swan mussels were 37.65% and 36.75%, and the ratios of essential amino acids to total amino acids were 60.38% and 58.11%, respectively.

Key words: Anodonta woodiana, mineral element, amino acid, essential amino acid, taurine