Intercalibration: Invertebrate fauna 0307 (ICP Waters report 72/2003)
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- NIVA-rapport 
The 7th intercalibration of invertebrates in the ICP-Water programme had contribution from 6 laboratories. All of the laboratories identified a high portion of the individuals in the test samples, usually ³ 90% of the total number of species. One laboratory, however, stopped mostly at the genus level for stoneflies. Short-coming identifications were consequently high in that case. Of the identified species only few faults were made and the results were regarded generally as very good and well within the limit of good identification proposed for intercalibration of biological material. No faults were made on the genus level. The quality was sufficient for stating the acidity index, and in most cases sufficient for multivariate statistical analyses. One problem during the tests is damages of the material during preparation and handling of the individuals. This seems to be the reason for short coming identification in most cases.
UtgiverNorsk institutt for vannforskning
ICP Waters report;72/2003