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Diatom assessment: There are a range of standard procedures which SEPA use which cover sample collection, preparation, taxonomic assessment and analysis. They are drawn from the various diatom documents provided on the UKTAG website athttp://www.wfduk.org/. (A summary document is available which describes the diatom classification process for rivers in general terms.)
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Large waterbody surveys: SEPA uses the Irish NS-SHARE loch sampling protocol to monitor still waters and recommends that any data which could be used for future WFD classification should follow this protocol. It is a reduced version of the CEN standards for gillnetting, with some fyke trapping added to account for eels.
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