Dauvin Jean-Claude, Ruellet Thierry, Desroy Nicolas, Janson Anne-Laure
Station Marine de Wimereux, Université des Sciences et Technologies de Lille, BP 80, 62930 Wimereux, France.
Mar Pollut Bull. 2007;55(1-6):241-57. doi: 10.1016/j.marpolbul.2006.04.010. Epub 2006 Apr 27.
Using recent indices developed, in part, for use under the European Water Framework Directive (AMBI, BENTIX, BOPA, BQI, I2EC and the trophic index ITI), the ecological quality status of two highly contaminated environments--the Bay of Seine and the Seine estuary (Eastern English Channel)--was determined on several spatial and temporal scales. Data from 604 observations gathered over a 14-year period (1988-2002) were analyzed, and the results used to show the relationship between biotic indices, environmental variables and classic descriptors (e.g., number of species, total abundance, dominance index, ES(50) and Shannon/Brillouin diversities). Though the specific ecological quality (EcoQ) values calculated with the various indices were different, the overall trend of the results was similar. Synthesizing the values produced by the six indices used in the study allowed attribution of a high to good EcoQ status to the Bay of Seine and a moderate EcoQ to the estuary. The mesh size used when processing samples was proved to have no effect in winter on the EcoQ values for either body of water.
利用近期部分为依据欧洲水框架指令而制定的指标（AMBI、BENTIX、BOPA、BQI、I2EC和营养指数ITI），在多个空间和时间尺度上确定了两个高度污染环境——塞纳湾和塞纳河口（英吉利海峡东部）的生态质量状况。分析了在14年期间（1988 - 2002年）收集的604次观测数据，并将结果用于展示生物指数、环境变量与经典描述符（如物种数量、总丰度、优势度指数、ES(50)以及香农/布里渊多样性）之间的关系。尽管使用各种指数计算出的具体生态质量（EcoQ）值有所不同，但结果的总体趋势相似。综合研究中使用的六个指数得出的值，塞纳湾的生态质量状况为高到良好，河口的生态质量为中等。结果表明，冬季处理样本时所使用的网目尺寸对这两个水体的EcoQ值均无影响。
