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首页> 外文期刊>Science of the total environment >A manipulative field experiment to evaluate an integrative methodology for assessing sediment pollution in estuarine ecosystems
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A manipulative field experiment to evaluate an integrative methodology for assessing sediment pollution in estuarine ecosystems

机译：操纵场实验，以评估用于评估河口生态系统中沉积物污染的综合方法

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The assessment of sediment contamination is of crucial importance for the management of estuarine ecosystems. Environmental risk assessment of oil pollution must be specific to these ecosystems because of their unique toxicant bioavailability dynamics, which is not comparable with that of other ecosystems where the environmental parameters are less variable. The goal of this work was to test in two European estuarine areas (Ria de Aveiro, Portugal; La Manga, Spain) whether the common methodology used to evaluate sediment pollution in marine sediment (amphipod toxicity tests and community structure analysis) is suited to these physico-chemically unique systems. Manipulative field experiments were conducted at three oil concentration levels, to compare resulting changes in community structure with laboratory and in situ amphipod toxicity tests carried out with native amphipod species Corophium multisetosum (Atlantic area) and Microdeutopus gryllotalpa (Mediterranean area). The impact of the toxicant was reflected in the community structure and toxicity tests, both of which were correlated with oil concentration. These results point to this methodology being a reliable tool for assessing and monitoring pollution in estuarine areas.
机译：沉积物污染的评估对于河口生态系统的管理至关重要。石油污染的环境风险评估必须针对这些生态系统，因为它们具有独特的有毒生物利用度动态，这与环境参数变化较小的其他生态系统无法相比。这项工作的目的是在两个欧洲河口地区（葡萄牙的Ria de Aveiro；西班牙的La Manga）进行测试，用于评估海洋沉积物中沉积物污染的通用方法（两栖动物毒性测试和群落结构分析）是否适合于这些地区。物理化学独特的系统。在三个油浓度水平上进行了操作性野外实验，以比较群落结构的变化，以及对本地两栖类物种Corophium multisetosum（大西洋地区）和Microdeutopus gryllotalpa（地中海地区）进行的实验室和原地两栖动物毒性测试的结果。有毒物质的影响反映在群落结构和毒性试验中，两者均与油浓度相关。这些结果表明，该方法学是评估和监测河口地区污染的可靠工具。

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