Intercalibration 0005: Invertebrate fauna (ICP Waters report 62/2001)
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The 5th intercalibration of invertebrates in the ICP Waters programme had contribution from 6 laboratories. Three of the laboratories delivered a pool of biological material from their home region as source material for the test samples. The other three got test samples based on the Norwegian fauna. 5 of the laboratories identified a high portion, usually >90% of total number of species in the test samples. Short-coming identifications were consequently relatively low. Of the identified species only few faults were made and the results were regarded as good and within the range of good identification proposed for intercalibration of biological material. One laboratory identifying matrial from Norway, determined a lower portion of the species than proposed for biological material and did also more misidentifications. However, the result was sufficient for establishing the acidity index, but probably not for multivariate statistical analyses.
UtgiverNorsk institutt for vannforskning
ICP Waters report;62/2001