Institute of Geosciences, Federal University of Bahia, Salvador, Bahia 40170-290, Brazil.
Mar Pollut Bull. 2010 Mar;60(3):474-81. doi: 10.1016/j.marpolbul.2009.12.002. Epub 2009 Dec 30.
Camamu Bay (Bahia, Brazil) is an Environmental Protected Area with mangroves of economic and ecological importance. The objective of this study was to elucidate, through the distribution of the benthic macrofauna and its relationships with trace metals and bioavailabilty, if the current quality of the mangrove sediments of Camamu Bay is acceptable for the protection of aquatic life. Seven sampling stations were selected as representative of the meso-littoral region of Camamu Bay. It was found 581 macrobenthic organisms distributed in 38 species. The highest values of metals occurred at stations located in areas that influenced by barite extraction, while the lowest concentrations were found in areas with relatively lower anthropogenic influence. Analysis of acid volatile sulphide and simultaneously extracted metals showed the occurrence of the ratio SEM/AVS >1, indicative of possible bioavailability of metals, at only one station. The results suggested that Camamu Bay is a nearly pristine area.
卡马穆湾（巴西巴伊亚州）是一个具有重要经济和生态意义的红树林环境保护区。本研究的目的是通过底栖大型动物的分布及其与痕量金属和生物可利用性的关系，阐明卡马穆湾红树林沉积物的当前质量是否可接受，以保护水生生物。选择了七个采样站作为卡马穆湾中潮带区域的代表性站点。共发现了 581 个分布在 38 个物种中的大型底栖生物。在受重晶石开采影响的区域的站点中发现了最高浓度的金属，而在人为影响相对较低的区域中则发现了最低浓度的金属。酸可挥发性硫化物和同时提取的金属分析表明，仅在一个站点出现了 SEM/AVS>1 的比值，表明金属可能具有生物可利用性。结果表明，卡马穆湾是一个近乎原始的地区。
