Abstract：
Free-living marine nematodes are valuable biological indicators for different environmental disturbances. Their taxonomic composition and functional traits often respond to environmental changes. In this study, marine nematodes, collected from the Bohai sea on the northeastern coast of China in 2014, were investigated in terms of their taxonomic composition and functional traits. Furthermore, the environmental quality of the investigated area was assessed based on nematode metrics. The studied nematode community showed spatial variation in taxonomic and functional composition, in response to changes in environmental variables such as sediment chlorophyll-a, phaeophytin-a, organic matter content, silt-clay content etc. Overall, high percentage of tolerant marine nematodes species or colonizers predominated, suggesting a disturbed environmental condition of the study area. Further results from the environmental quality assessment based on nematode metrics indicated a moderate quality status at the most investigated stations.
摘要：
自由生活的海洋线虫是不同环境干扰的有价值的生物学指标。它们的分类组成和功能特性通常对环境变化作出反应。在这项研究中,海洋线虫,2014年从中国东北沿海的渤海收集，对其分类组成和功能性状进行了调查。此外，根据线虫指标对调查区域的环境质量进行了评估。研究的线虫群落在分类和功能组成上表现出空间差异，响应于诸如沉积物叶绿素a等环境变量的变化，Phaeophtin-a,有机质含量,淤泥-粘土含量等.总的来说,高比例的耐性海洋线虫物种或殖民者占主导地位，表明研究区域的环境状况受到干扰。基于线虫指标的环境质量评估的进一步结果表明，在调查最多的站点中，质量状况中等。
