Environmental Protection Agency, John Moore Road, Castlebar, Co Mayo, Ireland.
Environmental Protection Agency, John Moore Road, Castlebar, Co Mayo, Ireland.
Mar Pollut Bull. 2020 Feb;151:110802. doi: 10.1016/j.marpolbul.2019.110802. Epub 2020 Jan 29.
In assessing the overall status of individual water bodies the EU Water Framework Directive (WFD) requires member states to assess both ecological and chemical status. The ecological status of transitional and coastal (TraC) waters is based on the assessment of specific biological elements as well as supporting chemical, physico-chemical and hydromorphological elements. Hydromorphology of TraC waters is one of the basic features of marine and coastal ecosystems controlling the presence of biota. Human induced hydromorphological alterations and pressures can damage the ecology and functioning of aquatic ecosystems. Thirteen metrics were developed and combined to form a hydromorphological index, the Hydromorphological Quality Index (HQI). The index categorises a water body into 5 classes. Semi-qualitative and quantitative criteria were used to assign a morphological classification directly related to that of the WFD, i.e., high, good, moderate, poor and bad. Thirty-three transitional and coastal water bodies were assessed using HQI.
在评估单个水体的整体状况时，欧盟水框架指令（WFD）要求成员国评估生态和化学状况。过渡性和沿海（TraC）水域的生态状况基于对特定生物要素以及支持的化学、物理化学和水力学形态要素的评估。TraC 水域的水力学形态是控制生物群存在的海洋和沿海生态系统的基本特征之一。人为引起的水力学形态改变和压力会破坏水生生态系统的生态和功能。已经开发了 13 个指标并组合在一起形成了一个水力学形态指数，即水力学形态质量指数（HQI）。该指数将水体分为 5 类。半定量和定量标准用于直接分配与 WFD 相关的形态分类，即高、良好、中等、差和差。使用 HQI 评估了 33 个过渡性和沿海水体。
