Model-based analysis of the relationship between macroinvertebrate traits and environmental river conditions
Published in Estuarine, Coastal and Shelf Science
A quality index Ics (= index of community structure) has been developed as a single numeric descriptor to assess the structural state of macroalgal communities and to evaluate their relative development on rocky shores. Coverage of seaweed species were sampled on the field and treated by taxonomic groups, size classes and structural – functional gr...
Published in Science of the Total Environment
•We compared the river fish ecological quality indices of the two Iberian states.•The two indices were intercalibrated indirectly using a pan-European index.•The three indices were responsive to the same set of individual pressures.•Despite high spatial turnover of species, boundary harmonization was accomplished.
Multimetric ﬁsh-based indices have been increasingly gaining importance in Europe, as the Water Framework Directive (WFD) requires ﬁsh fauna, and particularly its composition and abundance, to be taken into account in the assessment of the ecological quality of continental surface waters, including transitional waters. These indices are composed of...
Published in Hydrobiologia
The Water Framework Directive (WFD) requires intercalibration to be performed to ensure that ecological status, as defined by the boundary values of national biological assessment systems, is consistent with the definitions outlined in the WFD and comparable between Member States (MS). This article describes an intercalibration of 17 national river...