近江牡蛎作为重金属污染生物指示种的初步研究

Oyster Ostrea rivularis as an indicator of heavy metals pollution

对近江牡蛎作为监测广东沿岸海域Cu、Zn、Cd、Ph污染的生物指示种的可能性进行了初步研究和评价。应用POLYDIV统计技术时采自广东沿岸海域14个站点的近江牡蛎的重金属含量进行了统计分析，结果表明近江牡蛎受Cu、Zn、Cd污染的地理分布类型与广东沿海排放的工业废水的分布以及潮间带生物和表层沉积物的Cu、Zn、Cd含量分布相一致。因此，近江牡蛎可作为监测研究Cu、Zn、Cd污染的可靠生物指示种，但能否用于监测Pb还需进一步的研究。

Preliminary studies have been undertaken to test the indicator ability of the oyster Ostrea rivularis for monitoring copper, zinc, cadimium and lead in seawaters along Guangdong province. Applications of POLYDIV statistical analysis to heavy metal concentrations in oysters from 14 sites along Guangdong coastal waters confirmed that profiles of copper, zinc and cadmium abundance in the oyster agreed substantially with the distribution of industrial discharge along Guangdong province, amd also with patterns of contamination found in organisms and sediments collected from the tidal zone along Guangdong provice. As a result,this oyster appears to be a reliable bio-indicator for monitoring copper, cadimium and zinc,although its use to monitor lead requires further study.