CNR-IRSA activities related to INHABIT

  • Increase font size
  • Default font size
  • Decrease font size

MacrOper system

By means of MacrOper classification system, quality classification for benthic macroinvertebrates can be obtained for ecological status classification. MacrOper system combines information on the following elements:

  • national typological scheme (according to DM 131/2008);
  • boundary class defined within European intercalibration process;
  • numeric reference values type specific for the 6 considered metrics;
  • STAR_ICMi calculation.

In addition the correct attribution to a quality class requires:

  • benthic fauna to be sampled according to a multihabitat proportional technique.

 

Very briefly MacrOper classification system allows to obtain:

  • the classification of a water body according to WFD requirements;
  • a classification directly comparable with those of other European countries.

Moreover, the system:

  • is explicitly dedicated to the assessment of the ecological state, as requested in particular for WFD operative monitoring;
  • is not adequate per se for the aims of surveillance and investigative monitoring whose objectives are beyond mere sites classification;
  • can be used in order to derive quality class in sites subject to surveillance and investigative monitoring (although additional information based on benthic community is required in this case).