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首页> 外文期刊>Marine Environmental Research >Long-term monitoring using resident and caged mussels in Boston Harbor yield similar spatial and temporal trends in chemical contamination
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Long-term monitoring using resident and caged mussels in Boston Harbor yield similar spatial and temporal trends in chemical contamination

机译：使用波士顿港的常驻和笼养贻贝进行的长期监测得出化学污染的类似时空趋势

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Measurements of chemical contaminants in caged (transplanted) and resident mussel populations have become a routine tool for monitoring and assessing the status and trends of coastal water quality. However, few long-term data sets are available to assess the comparability and efficacy of these two monitoring approaches. Three long-term independent data sets exist for Boston Harbor: the National Mussel Watch program has analyzed resident blue mussels (Mytilus edulis) from the Boston Harbor/ Massachusetts Bay region for over twenty years, the Massachusetts Water Resources Authority has annually deployed caged (transplanted) mussels (M. edulis) to assess bioaccumulation potential of sewage effluent discharged under its NPDES permit for over fourteen years, and the CulfWatch program has analyzed resident blue mussel populations for over twelve years. Together, these data provide consistent and comparable information on temporal and spatial changes in chemical contamination in Boston Harbor as steps were taken to reduce contaminant loading. The data also demonstrate the complementary nature of resident and caged (transplanted) mussels for assessing contaminant trends even when the basic approaches and sampling frequency differ. These fifteen-year data sets demonstrate contaminant concentrations in mussels from Boston Harbor are similar and with few exceptions have significantly decreased since the early 1990s. The observed trends also demonstrate broad scale improvements to the quality of Boston Harbor and expand understanding of the response of coastal systems to interventions that reduce the load of chemicals to the ocean.
机译：笼养（移栽）和常住贻贝种群中化学污染物的测量已成为监测和评估沿海水质状况和趋势的常规工具。但是，很少有长期数据集可用来评估这两种监测方法的可比性和有效性。波士顿港拥有三个长期的独立数据集：全国贻贝观察计划分析了波士顿港/马萨诸塞湾地区的蓝贻贝（Mytilus edulis）已有二十多年了，马萨诸塞州水资源管理局每年都部署笼养（移栽）贻贝（M. edulis），以评估根据其NPDES许可排放的污水的生物蓄积潜力，已有14年以上的历史，而CulfWatch计划已分析了12年以上的常住蓝贻贝种群。通过采取措施减少污染物负荷，这些数据共同提供了波士顿港化学污染的时空变化的一致且可比较的信息。数据还表明，即使基本方法和采样频率不同，常驻贻贝和笼养（移植）贻贝的互补性质也可用于评估污染物趋势。这15年的数据集表明，波士顿港贻贝中的污染物浓度相似，并且自1990年代初以来几乎没有例外。观察到的趋势还表明，波士顿港的质量得到了大规模改善，并加深了对沿海系统对减少海洋化学品负荷的干预措施反应的理解。

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