A biomonitor as a measure of an ecologically-significant fraction of metals in an industrialized harbour
A biomonitor as a measure of an ecologically-significant fraction of metals in an industrialized harbour
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DOI：
10.1039/c2em10880a
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发表时间：
2012-03-01
影响因子：
--
通讯作者：
Johnston, Emma L.
中科院分区：
文献类型：
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作者：
Gall, Mailie L.;Poore, Alistair G. B.;Johnston, Emma L.
生物监测仪通常用于评估环境中生物可利用污染物的水平，然而，生物监测仪组织浓度与生态效应之间的关系很少被评估。本研究调查了一个高度工业化港口内的金属污染及其对无根无脊椎动物的生态影响。原生牡蛎Saccostrea glomerata作为生物监测仪被部署在26个地点，以测试其组织中金属水平与硬基质无脊椎动物招募之间的相关性。牡蛎组织中铅和铜的浓度与优势藤壶Amphibalanus variegatus的密度呈负相关，与优势多毛类Hydroides elegans和原生苔藓虫Celloporaria nodulosa和Arachnopusia unicornis的密度呈正相关。结果表明，高度本地化的事件驱动污染物的可用性，这些事件对动物构成重大风险。同时进行生态调查可以加强生物监测研究。
Biomonitors are commonly used to assess levels of bioavailable contaminants in the environment, however the relationships between biomonitor tissue concentrations and ecological effects are rarely assessed. The present study investigated metal contamination within a highly industrialised harbour and ecological effects on sessile invertebrates. The native oyster Saccostrea glomerata was deployed as a biomonitor across twenty-six sites to test for correlations between metal levels in their tissues and the recruitment of hard-substrate invertebrates. Concentrations of lead and copper in oyster tissues were negatively correlated with densities of the dominant barnacle, Amphibalanus variegatus, and positively correlated with densities of the dominant polychaete, Hydroides elegans, and the two native encrusting bryozoans Celloporaria nodulosa and Arachnopusia unicornis. Results suggest that highly localised events drive contaminant availability and that these events pose a significant risk to fauna. Biomonitoring studies may be enhanced by running concurrent ecological surveys.