Articles | Volume 379
https://doi.org/10.5194/piahs-379-169-2018
https://doi.org/10.5194/piahs-379-169-2018
Pre-conference publication
 | 
05 Jun 2018
Pre-conference publication |  | 05 Jun 2018

Detecting trend on ecological river status – how to deal with short incomplete bioindicator time series? Methodological and operational issues

Flavie Cernesson, Marie-George Tournoud, and Nathalie Lalande

Cited articles

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Crunkilton, R. L. and Duchrow, R. M.: Use of stream order and biological indexes to assess water-quality in the osage and black river basins of Missouri, Hydrobiologia, 224, 155–166, 1991. 
Diamantini, E., Lutz, S. R., Mallucci, S., Majone, B., Merz, R., and Bellin, A.: Driver detection of water quality trends in three large European river basins, Sci. Total Environ., 612, 49–62, 2018. 
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Short summary
For water managers, analysing time variations in short and incomplete bioindicator series is necessary but tricky. From our work on benthic invertebrate indicator series sampled in the Saône basin (France), we conclude that (1) combining statistical tests and graphical analyses is relevant for classifying time series, (2) environmental contexts explain similarities between series better than river size classes, (3) a single value can summarise a serie to link bioindicators to land-use stressors.