Institute of Marine Sciences and Technology, Dokuz Eylul University, Inciralti, 35340, Izmir, Turkey.
Environ Monit Assess. 2010 Mar;162(1-4):407-15. doi: 10.1007/s10661-009-0805-0. Epub 2009 Feb 24.
The aim of this study was to monitor the heavy metal contents and fecal pollution in Tapes decussatus (carpet shell clam) from Izmir Bay (Eastern Aegean). Bivalve mollusks were sampled on January, March, July, and October 2007 in the Izmir Bay. Izmir Bay is one of the great natural bays of the Mediterranean. Concentrations of heavy metals were determined in the clams from the different seasons. Fecal coliform densities were determined to evaluate the degree of water pollution and clams' microbiological accumulation of the classical microbial pollution indicators. The concentration of heavy metals in T. decussatus from Izmir Bay were Hg 0.044-0.13; Cd 0.026-0.24; Pb 0.38-1.2; Cr 2.3-3.7; Cu 6.4-8.4; Zn 56.0-81.8, and Ni 8.1-9.6 microg/g (dry weight). The maximum values were generally obtained in July and March except Ni. This study found that the levels of heavy metals except Cr in T. decussatus were below Spanish and European Communities legislations for shellfish as food. Microbial pollution indicators (heterotrophic bacteria and fecal coliform) were measured in T. decussatus. Maximum heterotrophic bacteria and fecal coliforms were recorded in the winter while the lowest were detected in summer.
本研究的目的是监测伊兹密尔湾（东爱琴海）铜腹足（地毯贝壳蛤）中的重金属含量和粪便污染。2007 年 1 月、3 月、7 月和 10 月在伊兹密尔湾采集双壳贝类。伊兹密尔湾是地中海的一个大天然海湾。测定了不同季节贝类中的重金属浓度。测定粪便大肠菌群密度，以评估水污染物程度和贝类对经典微生物污染指标的微生物积累程度。伊兹密尔湾铜腹足中的重金属浓度为 Hg 0.044-0.13；Cd 0.026-0.24；Pb 0.38-1.2；Cr 2.3-3.7；Cu 6.4-8.4；Zn 56.0-81.8，Ni 8.1-9.6 microg/g（干重）。除 Ni 外，重金属的最高值通常出现在 7 月和 3 月。本研究发现，除 Cr 外，铜腹足中的重金属含量低于西班牙和欧洲共同体的贝类食品法规。测量了铜腹足中的微生物污染指标（异养细菌和粪便大肠菌群）。冬季记录到最高的异养细菌和粪便大肠菌群，夏季则检测到最低水平。
