Many of the method statements have been updated, particularly the biological method statements. These are filed under the Resources section which displays the documents in date order (most recent first), or you can use the tick box search on the left of the window when you are in the Resources section. The most recent uploads to the Resources section are also listed below.
This classification method enables the assessment of invertebrates in rivers in relation to general degradation, including organic pollution. Whalley, Hawkes, Paisley & Trigg (WHPT) metrics replace the Biological Monitoring Working Party (BMWP) metrics used for status classifications in the first river basin planning cycle.
Phytobenthos are good indicators of nutrient enrichment and can be used to assess lake water quality. Diatoms are the main plant groups that we use because their silica cell walls make them easy to identify under the microscope.
Phytobenthos are good indicators of nutrient enrichment and other pressures, and can be used to assess river water quality. Diatoms are the main plant groups that we use because their silica shells are easy to identify under the microscope.
All of the relevant information on standards and typology for phosphorus in lakes is in the ministerial directions of the relevant administrations; DEFRA, WG, SG and DOENI. There is currently no specific / separate method statement.
This method statement provides guidance on the use of the metal bioavailability assessment tool (M-BAT) for practitioners involved in monitoring, assessment and classification using the new EQSbioavailable that have been developed for a number of metals under the Water