Riverfly Partnership Survey Sites

This layer is deprecated - please use the Riverfly Monitoring Initiative Survey layer which now contains full survey results pulled daily from the Cartographer platform. Locations of Riverfly Partnership survey sites as of Dec 2016. These are locations only - the invertebrate survey data are hosted on the Freshwater Biological Association's servers - click on a site to link to the full survey data. The default symbology for this layer shows trigger levels, which are set by the Environment Agency. Trigger levels show the expected riverfly survey scores at each site. Regular volunteer surveys will report any results below this threshold, which will trigger further investigation by the EA.此图层已弃用，请改用河蝇监测倡议调查图层（Riverfly Monitoring Initiative Survey layer），该图层目前每日从制图师平台（Cartographer platform）拉取完整调查结果。本图层仅收录2016年12月时的河蝇合作项目（Riverfly Partnership）调查点位信息，仅提供点位坐标；无脊椎动物调查数据托管于淡水生物协会（Freshwater Biological Association）的服务器，点击任意点位即可跳转至完整调查数据页面。本图层的默认符号体系展示由环境署（Environment Agency）设定的触发阈值，该阈值代表各点位预期的河蝇调查得分。常规志愿者调查若上报得分低于该阈值的结果，将触发环境署（EA）的进一步调查工作。