期刊
BIOLOGICAL TRACE ELEMENT RESEARCH
卷 156, 期 1-3, 页码 175-180出版社
HUMANA PRESS INC
DOI: 10.1007/s12011-013-9841-2
关键词
Mercury; Trophic levels; Fish; River birds; Arvand River
资金
- Environmental Protection of Tehran, Iran
In this study, concentration of mercury was determined in the trophic levels of benthic, benthopelagic, pelagic fish species, and river birds from Arvand River, located in the Khuzestan province in the lowlands of southwestern Iran at the head of the Persian Gulf. The order of mercury concentrations in tissues of the fish species was as follows: liver > gill > muscle and in tissues of the kingfisher species was as follows: feather > liver > kidney > muscle. Therefore, liver in fish and feather in kingfisher exhibited higher mercury concentration than the other tissues. There was a positive correlation between mercury concentrations in fish and kingfisher species with size of its food items. We expected to see higher mercury levels in tissues of female species because they are larger and can eat larger food items. The results of this study show that the highest mean mercury level were found in the kingfisher (Anas crecca), followed by benthic (Epinephelus diacanthus), benthopelagic (Chanos chanos), and pelagic fish (Strongylura strongylura). Mean value of mercury in fish species, S. strongylura were (0.61 mu g g(-1) dry weight), C. chanos (0.45 mu g g(-1) dry weight), E. diacanthus (0.87 mu g g(-1) dry weight), and in kingfisher species A. crecca was (2.64 mu g g(-1) dry weight). Significant correlation between mercury concentration in fish and kingfisher may be related to high variability of mercury in the fish.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据