Browsing NIVA Open Access Archive by Author "Johannessen, Arne"

Now showing items 1-12 of 12

    • Biological intercalibration. Invertebrates 1915 - ICP Waters report 124/2015 

      Fjellheim, Arne; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;6940, Research report, 2015)
      Six European laboratories participated in the 19th ICP Waters biological intercalibration, which took place in 2015. The laboratories identified a very high portion of the individuals in the test samples, > 95% of the total ...

    • Biological intercalibration: Invertebrates 1410 (ICP Waters report 103/2010) 

      Fjellheim, Arne; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;6087, Research report, 2010-11)
      The 14th intercalibration of invertebrates in the ICP Waters programme had contribution from five laboratories. The laboratories identified a high portion of the individuals in the test samples, usually > 90% of the total ...

    • Biological intercalibration: Invertebrates 1511 (ICP Waters report 109/2011) 

      Fjellheim, Arne; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;6264, Research report, 2011-12)
      The 15th intercalibration of invertebrates in the ICP Waters programme had contribution from four laboratories. The laboratories identified a high portion of the individuals in the test samples, usually > 90% of the total ...

    • Biological intercalibration: Invertebrates 1612 (ICP Waters report 113/2012) 

      Fjellheim, Arne; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;6454, Research report, 2012-11)
      The 16th intercalibration of invertebrates in the ICP Waters programme had contribution from three laboratories. The laboratories identified a high portion of the individuals in the test samples, usually > 90% of the total ...

    • Biological intercalibration: Invertebrates 1713 (ICP Waters report 118/2014) 

      Fjellheim, Arne; Johannessen, Arne; Landås, Torunn Svanevik; de Wit, Heleen (NIVA-rapport;6662, Research report, 2014-04)
      The 17th intercalibration of invertebrates in the ICP Waters programme had contribution from four laboratories. The laboratories identified a very high portion of the individuals in the test samples, usually > 95% of the ...

    • Biological intercalibration: Invertebrates 1814 

      Fjellheim, Arne; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;6761, Research report, 2014)
      The 18th intercalibration of invertebrates in the ICP Waters programme had contribution from three laboratories. The laboratories identified a very high portion of the individuals in the test samples, > 95% of the total ...

    • Biological intercalibration: Invertebrates 2016. ICP Waters report 130/2016 

      Halvorsen, Godtfred Anker; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;7089, Research report, 2016-11)
      Two European laboratories participated in the 20th ICP Waters biological intercalibration, which took place in 2016. The laboratories identified a high proportion of the individuals in the test samples, 93 % of the total ...

    • Biological intercalibration: Invertebrates 2017 

      Halvorsen, Godtfred Anker; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;7198, Research report, 2017)
      The 21th intercalibration of invertebrates in the ICP Waters programme had contribution from four laboratories. The biological intercalibration is important for harmonizing taxonomic work across countries and will be of ...

    • Biological intercalibration: Invertebrates 2018 

      Velle, Gaute; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;7314, Research report, 2018)
      The 22nd biological intercalibration of invertebrates in the ICP Waters programme included four laboratories. The intercalibration is important for harmonising taxonomic work across countries, and is of high value in ...

    • Biological intercalibration: Invertebrates 2019 

      Velle, Gaute; Birkeland, Ina Bakke; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;7433, Research report, 2019)
      Two laboratories participated in the 23rd biological intercalibration of invertebrates in the ICP Waters programme. The intercalibration is important for harmonising taxonomic work across countries and is of high value ...

    • Biological intercalibration: Invertebrates 2020 

      Velle, Gaute; Birkeland, Ina Bakke; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;7556, Report, 2020)
      The 24th biological intercalibration of invertebrates in ICP Waters included three laboratories. The intercalibration is important for harmonizing taxonomic work across countries, to ensure high quality data in the ICP ...

    • Biological intercalibration: Invertebrates 2021 

      Bodin, Christian Lucien; Velle, Gaute; Johannessen, Arne; Landås, Torunn Svanevik (NIVA-rapport;7685, Research report, 2021)
      The 25th biological intercalibration of invertebrates in ICP Waters included three participants. The intercalibration is important for harmonizing taxonomic work across countries, to ensure high quality data in the ICP ...