The study of trace element contents in eggs of marine crustacean and fish

• Main Authors: Wu, Chao-Hao, 吳昭豪
• Other Authors: Fang, Tien-Hsi
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/14709949230629570170

碩士 === 國立臺灣海洋大學 === 海洋環境資訊系 === 102 === The concentrations of trace elements in eggs of five crustacean (Portunus trituberculatus、Thalamita crenata、Charybdis feriatus、Parapenaeus fissuroides、Bathysquilla crassispinosa) and four fishes (Mugil cephalus、Miichthys miiuy、Cypselurus poecilopterus、Ephippus orbis) were determined in the present study. The eggs of these analyzed organisms were digested by strong acid at the water bath and the contents of trace elements were analyzed by the ICP-MS. The analyzed results showed that the concentrations of the trace elements ranged within 0.000027-374.1 mg/kg. The concentration sequence of the analyzed trace elements were as follow: Al > Zn > Fe > Cu > As > Sr > Se > Mn > Rb > Cr > Ni > Pb > V > Li > Ba > Ga > Co > Cd > Hg > Cs > Ag > Bi > Ge > Be > Tl > U >In. However, the sequence of Zn、Fe、Mn and Cr will differ from the different crustacean. Similar result was also found in the fish eggs. While, the concentration differences of Ni, Cr, Rb and Mn in the crustacean were extremely significant, especially Mn could reach million fold. In addition, the concentration difference of Fe in Portunidae was also significant and could reach 100 folds. The bio-concentration factors (concentration in eggs dividing the concentration in seawater) of these analyzed eggs ranged within 10-3 - 107. Lead has the highest bio-concentration factor, and Li and Sr have the lowest bio-concentration factor. The bio-concentration factor of crustacean eggs was generally higher than that of fish eggs.