Riverfly Partnership Survey Sites
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官方服务:
资源简介:
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.
提供机构:
The Rivers Trust创建时间:
2017-01-10



