CAJ | 학술논문

移殖生物因子相同、遗传质量稳定和污染本底值低的“标准化”背角无齿蚌至太湖五里湖，并以仍养殖在未受污染的中国水产科学研究院淡水渔业研究中心南泉基地的同批蚌作为对照，每3个月回收蚌样，应用电感耦合等离子质谱仪(ICP-MS)研究了重金属Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Mo、Ag、Cd、Ba、Tl和Pb的含量变化.结果表明，“标准化”背角无齿蚌对重金属的积累与特定的季节/时间密切相关，在夏季的含量明显低于春季.移殖五里湖3个月蚌样中Mo和Tl的含量显著高于相应的对照组(P<0.05)，而前者Ba的含量显著低于后者(P<0.05).移殖五里湖6个月蚌样中As的含量显著低于对照组(P<0.05).综合重金属污染指数(MPI)和我国及国际上的相关限量标准评价显示，五里湖和南泉基地水体中重金属的含量处于相同水平，重金属污染均不明显.
이식생물인자상동、유전질량은정화오염본저치저적“표준화”배각무치방지태호오리호，병이잉양식재미수오염적중국수산과학연구원담수어업연구중심남천기지적동비방작위대조，매3개월회수방양，응용전감우합등리자질보의(ICP-MS)연구료중금속Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Mo、Ag、Cd、Ba、Tl화Pb적함량변화.결과표명，“표준화”배각무치방대중금속적적루여특정적계절/시간밀절상관，재하계적함량명현저우춘계.이식오리호3개월방양중Mo화Tl적함량현저고우상응적대조조(P<0.05)，이전자Ba적함량현저저우후자(P<0.05).이식오리호6개월방양중As적함량현저저우대조조(P<0.05).종합중금속오염지수(MPI)화아국급국제상적상관한량표준평개현시，오리호화남천기지수체중중금속적함량처우상동수평，중금속오염균불명현.
“Standardized”Anodonta woodiana mussels, with the same biological factors, stable inherited quality, and low contamination background, were transplanted to Wulihu Bay of Taihu Lake for assessment of heavy metal pollution. Meanwhile, the same batch mussels were continually reared in the unpolluted pond of Nanquan Aquatic Base of Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences as control. Ten individuals were recollected every three months to determine heavy metal (Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Mo, Ag, Cd, Ba, Tl, and Pb) concentrations using an inductively coupled plasma mass spectrometer (ICP-MS). The results showed that metal bioaccumulation in the mussels appeared to be transplant period-/seasonal-dependent and the higher concentrations were generally found in the spring-collected mussels than in the summer-collected mussels. Additionally, concentrations of Mo and Tl in the mussels transplanted to Wulihu Bay for three months were significantly higher than those in the control mussels of Nanquan Aquatic Base (P<0.05), while concentration of Ba in the former was significantly lower than the latter (P<0.05). Concentration of As in mussels transplanted to Wulihu area for six months were significantly lower (P<0.05) than that in the control mussels. Nevertheless, both aquatic environments of Wulihu Bay and Nanquan Aquatic Base should be without obvious pollution by the aforementioned metals, based on the assessment of integrated metal pollution index (MPI) and comparison with the corresponding national and international residual limits for aquatic products.